There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool images.
There's an electronics assembly joint near us that's going out ofCongratulations.
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool images.
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20
part? Resolution looks impressive.
Can you post a photo of the entire thing?
On Tuesday, 21 November 2023 at 04:53:36 UTC+1, John Larkin wrote:
There's an electronics assembly joint near us that's going out ofCongratulations.
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Those pictures of the DCDC converter looks like some chinese thrown together and potted to look nice. Is that right?
A big firm in Denmark went bankrupt, so I bought a lot of HP gear, 3 VNAs, 1 EMC test receiver, a 4GHz signal generator, a microscope, .... all for 6000 USD.
Only one of them doesn't work
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20
part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Do you want to see the PLCC in a full-field view? Or the whole board?
I'll ask Garvin to do that.
The double wire bonds are interesting.
On Thu, 23 Nov 2023 12:42:34 -0800 (PST), Klaus Kragelund <klaus.kragelund@gmail.com> wrote:
On Tuesday, 21 November 2023 at 04:53:36 UTC+1, John Larkin wrote:
There's an electronics assembly joint near us that's going out ofCongratulations.
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Those pictures of the DCDC converter looks like some chinese thrown
together and potted to look nice. Is that right?
I think some dc/dc bricks are worse, just haywired parts gooped in a
shell.
I love the Murata converter. The toroid core is interior to the PCB
and the vias are the windings. Isolation capacitance is very low.
A big firm in Denmark went bankrupt, so I bought a lot of HP gear, 3
VNAs, 1 EMC test receiver, a 4GHz signal generator, a microscope, .... all for 6000 USD.
Only one of them doesn't work
Sine waves are booooooring.
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20
part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Now this is even more impressive. Are the images directly digitized?
I mean CAT scanner like?
Do you want to see the PLCC in a full-field view? Or the whole board?
I'll ask Garvin to do that.
I meant the entire machine, from outside - have never seen one.
John Larkin <jl@997PotHill.com> wrote:
On Thu, 23 Nov 2023 12:42:34 -0800 (PST), Klaus Kragelund
<klaus.kragelund@gmail.com> wrote:
On Tuesday, 21 November 2023 at 04:53:36 UTC+1, John Larkin wrote:
There's an electronics assembly joint near us that's going out ofCongratulations.
business, so we poached three employees and a bunch of equipment. I've >>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>> images.
Those pictures of the DCDC converter looks like some chinese thrown
together and potted to look nice. Is that right?
I think some dc/dc bricks are worse, just haywired parts gooped in a
shell.
I love the Murata converter. The toroid core is interior to the PCB
and the vias are the windings. Isolation capacitance is very low.
A big firm in Denmark went bankrupt, so I bought a lot of HP gear, 3
VNAs, 1 EMC test receiver, a 4GHz signal generator, a microscope, .... all for 6000 USD.
Only one of them doesn't work
Sine waves are booooooring.
You like skinny women, too. ;)
Cheers
Phil Hobbs
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Now this is even more impressive. Are the images directly digitized?
I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Now this is even more impressive. Are the images directly digitized?
I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct
USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor
chip, CSI Scintillator, electronic circuits, shielding foils, and polyurethane cable and shock absorbers."
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Now this is even more impressive. Are the images directly digitized?
I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
Do you want to see the PLCC in a full-field view? Or the whole board?
I'll ask Garvin to do that.
I meant the entire machine, from outside - have never seen one.
Ok, OK. Will do.
We have another, older Xray machine. It counts parts on reels but
doesn't have the resolution to see what's inside parts.
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>> business, so we poached three employees and a bunch of equipment. I've >>>>>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Now this is even more impressive. Are the images directly digitized?
I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct
USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor
chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
On Thu, 23 Nov 2023 12:42:34 -0800 (PST), Klaus Kragelund <klaus.k...@gmail.com> wrote:
On Tuesday, 21 November 2023 at 04:53:36 UTC+1, John Larkin wrote:
There's an electronics assembly joint near us that's going out ofCongratulations.
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Those pictures of the DCDC converter looks like some chinese thrown together and potted to look nice. Is that right?I think some dc/dc bricks are worse, just haywired parts gooped in a
shell.
I love the Murata converter. The toroid core is interior to the PCB
and the vias are the windings. Isolation capacitance is very low.
A big firm in Denmark went bankrupt, so I bought a lot of HP gear, 3 VNAs, 1 EMC test receiver, a 4GHz signal generator, a microscope, .... all for 6000 USD.Sine waves are booooooring.
Only one of them doesn't work
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>> business, so we poached three employees and a bunch of equipment. I've >>>>>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I
think they can make movies too.
Now this is even more impressive. Are the images directly digitized?
I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct
USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor
chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff ><dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>> business, so we poached three employees and a bunch of equipment. I've >>>>>>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>
<https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0>
We also got a 3D AOI board inspection machine which makes equally cool >>>>>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct
USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor
chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some >>scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
<https://hackaday.com/2015/12/31/portable-diy-radiography/>
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
<http://www.kronjaeger.com/hv-old/xray/tech/PD500/>
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff ><dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>> business, so we poached three employees and a bunch of equipment. I've >>>>>>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct
USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor
chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some >>scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
On Sat, 25 Nov 2023 05:52:11 GMT, Jan Panteltje <al...@comet.invalid> wrote: >On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff <d...@tgi-sci.com> wrote in <ujr35j$2fd7a$1...@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <j...@997PotHill.com> wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <d...@tgi-sci.com> wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <d...@tgi-sci.com> wrote:
On 11/21/2023 5:52, John Larkin wrote:
For decent imaging, you need a point source of x-rays, which you get from blasting a tiny electron beam at a metal target. The best results happen when you're at the edge of melting the metal.
On Sat, 25 Nov 2023 05:52:11 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff >><dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how >>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>> USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some >>>scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
For decent imaging, you need a point source of x-rays, which you get
from blasting a tiny electron beam at a metal target. The best results
happen when you're at the edge of melting the metal.
On Sunday, November 26, 2023 at 2:00:31 AM UTC+11, John Larkin wrote:the source because positive ion bombardment degrades the emitter very rapidly.
On Sat, 25 Nov 2023 05:52:11 GMT, Jan Panteltje <al...@comet.invalid> wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff <d...@tgi-sci.com> wrote in <ujr35j$2fd7a$1...@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <j...@997PotHill.com> wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <d...@tgi-sci.com> wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <d...@tgi-sci.com> wrote:
On 11/21/2023 5:52, John Larkin wrote:
For decent imaging, you need a point source of x-rays, which you get from blasting a tiny electron beam at a metal target. The best results happen when you're at the edge of melting the metal.
Electron microscopes get their tiny electron spot by focussing the beam onto a point.
The brightest electron sources are cold field emission guns, which are very unstable. Hot field emitters are almost as bright because the source gets warm enough to get shaped into a sharp spike by the electric field. Both need a very high vacuum in
For routine use a single crystal of lanthanum boride is bright enough, and lasts for about six months, in a hard vacuum.
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
So what model x-ray is it? How hard was it to get all the licences for it?
(I assume you are in one of the ~40 states that require same.)
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >images.
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <jl@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
On Sun, 26 Nov 2023 16:18:56 -0700, boB <boB@K7IQ.com> wrote:
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <jl@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix. I can x-ray anything reasonable for
people. No bombs or cows or anything.
On Sun, 26 Nov 2023 16:18:56 -0700, boB <boB@K7IQ.com> wrote:
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <jl@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of >>>business, so we poached three employees and a bunch of equipment. I've >>>always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix. I can x-ray anything reasonable for
people. No bombs or cows or anything.
On Sun, 26 Nov 2023 16:18:56 -0700, boB <boB@K7IQ.com> wrote:Thanks for the pics, looks really serious.
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <jl@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix.
I can x-ray anything reasonable for
people. No bombs or cows or anything.
On 11/27/2023 1:26, John Larkin wrote:
On Sun, 26 Nov 2023 16:18:56 -0700, boB <boB@K7IQ.com> wrote:Thanks for the pics, looks really serious.
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <jl@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>> images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix.
I can x-ray anything reasonable for
people. No bombs or cows or anything.
What about goats?
http://tgi-sci.com/tgi/fun/kozichki.htm
:)
On Mon, 27 Nov 2023 16:03:10 +0200, Dimiter_Popoff <d...@tgi-sci.com>
wrote:
On 11/27/2023 1:26, John Larkin wrote:
On Sun, 26 Nov 2023 16:18:56 -0700, boB <b...@K7IQ.com> wrote:Thanks for the pics, looks really serious.
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <j...@997PotHill.com> >>> wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>> images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix.
I can x-ray anything reasonable for
people. No bombs or cows or anything.
What about goats?
http://tgi-sci.com/tgi/fun/kozichki.htm
:)What's inside a goat? Tin cans and barbed wire?
Here in San Francisco, you wouldn't expect to see goats. But we have
water reserviors on the tops of hills for gravity feed. And they get overgrown with grass and weeds. So once in a while the city hires
herds of goats to eat the greenery.
https://www.youtube.com/watch?v=pkuNn8iXOwM
On Mon, 27 Nov 2023 16:03:10 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/27/2023 1:26, John Larkin wrote:
On Sun, 26 Nov 2023 16:18:56 -0700, boB <boB@K7IQ.com> wrote:Thanks for the pics, looks really serious.
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <jl@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >>>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>> images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix.
I can x-ray anything reasonable for
people. No bombs or cows or anything.
What about goats?
http://tgi-sci.com/tgi/fun/kozichki.htm
:)
What's inside a goat? Tin cans and barbed wire?
Here in San Francisco, you wouldn't expect to see goats. But we have
water reserviors on the tops of hills for gravity feed. And they get overgrown with grass and weeds. So once in a while the city hires
herds of goats to eat the greenery.
https://www.youtube.com/watch?v=pkuNn8iXOwM
On Monday, November 27, 2023 at 9:56:43?AM UTC-6, John Larkin wrote:
On Mon, 27 Nov 2023 16:03:10 +0200, Dimiter_Popoff <d...@tgi-sci.com>
wrote:
On 11/27/2023 1:26, John Larkin wrote:What's inside a goat? Tin cans and barbed wire?
On Sun, 26 Nov 2023 16:18:56 -0700, boB <b...@K7IQ.com> wrote:Thanks for the pics, looks really serious.
On Mon, 20 Nov 2023 19:52:47 -0800, John Larkin <j...@997PotHill.com>
wrote:
There's an electronics assembly joint near us that's going out of
business, so we poached three employees and a bunch of equipment. I've >> >>>> always wanted a high-res xray, and I got one and the guy to run it.
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >> >>>> images.
CooL ! That just come in handy !
Would love one ! How big is the unit ?
boB
It's big. I posted some pix.
I can x-ray anything reasonable for
people. No bombs or cows or anything.
What about goats?
http://tgi-sci.com/tgi/fun/kozichki.htm
:)
Here in San Francisco, you wouldn't expect to see goats. But we have
water reserviors on the tops of hills for gravity feed. And they get
overgrown with grass and weeds. So once in a while the city hires
herds of goats to eat the greenery.
https://www.youtube.com/watch?v=pkuNn8iXOwM
So, it doesn't bother you to have goat crap in your water?
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff <dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>> business, so we poached three employees and a bunch of equipment. I've >>>>>>>> always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool >>>>>>>> images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera?
Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how
that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct
USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor
chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
On 25/11/2023 4:52 pm, Jan Panteltje wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff >> <dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how >>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>> USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
If you wish to re-purpose a valve/tube that was not intended as an x-ray >tube, instead of a PD500 etc. it is better to use a 6BC-1 because it
produces a focussed electron beam that makes a small spot on the anode - >though it cannot handle very high voltage and also the anode melts
easily unless extremely low beam current is used (which is sensible anyway): >See:
https://danyk.cz/rtg2_en.html
See also the text on: >https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the >authorities and the website was disappeared
On 25/11/2023 4:52 pm, Jan Panteltje wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff >> <dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how >>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>> USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
If you wish to re-purpose a valve/tube that was not intended as an x-ray >tube, instead of a PD500 etc. it is better to use a 6BC-1 because it
produces a focussed electron beam that makes a small spot on the anode - >though it cannot handle very high voltage and also the anode melts
easily unless extremely low beam current is used (which is sensible anyway): >See:
https://danyk.cz/rtg2_en.html
See also the text on: >https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the >authorities and the website was disappeared
On a sunny day (Thu, 30 Nov 2023 00:07:52 +1100) it happened Chris Jones ><lugnut808@spam.yahoo.com> wrote in <KIG9N.1189626$OPFb.500178@fx15.ams4>:
On 25/11/2023 4:52 pm, Jan Panteltje wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff >>> <dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>> wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20
part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor, >>>>> but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how >>>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>>> USB sensor offers rounded corners, smooth edges, and two sizes (size >>>>> #1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
If you wish to re-purpose a valve/tube that was not intended as an x-ray >>tube, instead of a PD500 etc. it is better to use a 6BC-1 because it >>produces a focussed electron beam that makes a small spot on the anode - >>though it cannot handle very high voltage and also the anode melts
easily unless extremely low beam current is used (which is sensible anyway): >>See:
https://danyk.cz/rtg2_en.html
Thank you, very nice site, many pictures!
I see that tube is available on ebay:
https://www.ebay.com/itm/263765159128
Datasheets:
http://lampes-et-tubes.info/vs/vs013.php?l=e
See also the text on: >>https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent >>screens and image intensifiers, until he received a visit from the >>authorities and the website was disappeared
Well, everything is forbidden these days...
Now I cannot even fly my drone as I am too close to a mil airport, and now they want you to have a license too for big drones.
There is a danger that prohibiting kids from experimenting will create a braindead society.
The radioactive stuff I have ?
https://panteltje.nl/panteltje/pic/sc_pic/PMT_with_radium_in_bag_img_2482.jpg
Very old picture (20 years or so ago), HV generator...:
https://panteltje.nl/panteltje/pic/sc_pic/
and some :-)
Experimenting is fun, and one learns a lot that way!
On Wed, 29 Nov 2023 17:41:24 GMT, Jan Panteltje <alien@comet.invalid>
wrote:
See also the text on:
https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the
authorities and the website was disappeared
Well, everything is forbidden these days...
Now I cannot even fly my drone as I am too close to a mil airport, and now they want you to have a license too for big drones.
There is a danger that prohibiting kids from experimenting will create a braindead society.
I was just talking to a guy about that this morning. Kids are too
protected and afraid of electricity and soldering irons and stuff.
They huddle way up in the abstraction stack where it's safe.
The radioactive stuff I have >> https://panteltje.nl/panteltje/pic/sc_pic/PMT_with_radium_in_bag_img_2482.jpg >> Very old picture (20 years or so ago), HV generator...:
https://panteltje.nl/panteltje/pic/sc_pic/
and some :-)
Experimenting is fun, and one learns a lot that way!
We were free-range brats and did all sorts of risky stuff. Gunpowder,
neon sign transformers, old tube TV sets, dangerous stuff we could buy
at any chemical supply house. Potassium nitrate. Iodine crystals. Nitrobenzene.
In high school, we had radioactive sample things sort of like poker
chips. I used to carry them in my pants pocket.
On 11/29/23 12:22, john larkin wrote:
On Wed, 29 Nov 2023 17:41:24 GMT, Jan Panteltje <alien@comet.invalid><big snip>
wrote:
See also the text on:
https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the
authorities and the website was disappeared
Well, everything is forbidden these days...
Now I cannot even fly my drone as I am too close to a mil airport, and now they want you to have a license too for big drones.
There is a danger that prohibiting kids from experimenting will create a braindead society.
I was just talking to a guy about that this morning. Kids are too
protected and afraid of electricity and soldering irons and stuff.
They huddle way up in the abstraction stack where it's safe.
However, in the Socialist Republic of California they seem to be
taught it is safe to walk out in street traffic without looking, because >"pedestrians always have the right of way". Good grief.
On Wed, 29 Nov 2023 16:27:02 -0800, wmartin <w...@wwmartin.net> wrote:
On 11/29/23 12:22, john larkin wrote:
On Wed, 29 Nov 2023 17:41:24 GMT, Jan Panteltje <al...@comet.invalid><big snip>
wrote:
See also the text on:
https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent >>>> screens and image intensifiers, until he received a visit from the
authorities and the website was disappeared
Well, everything is forbidden these days...
Now I cannot even fly my drone as I am too close to a mil airport, and now they want you to have a license too for big drones.
There is a danger that prohibiting kids from experimenting will create a braindead society.
I was just talking to a guy about that this morning. Kids are too
protected and afraid of electricity and soldering irons and stuff.
They huddle way up in the abstraction stack where it's safe.
However, in the Socialist Republic of California they seem to be taught it is safe to walk out in street traffic without looking, because "pedestrians always have the right of way". Good grief.
Only in crosswalks.
On 25/11/2023 4:52 pm, Jan Panteltje wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff >> <dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com>
wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20 >>>>>>>> part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor,
but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how >>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>> USB sensor offers rounded corners, smooth edges, and two sizes (size
#1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
If you wish to re-purpose a valve/tube that was not intended as an x-ray >tube, instead of a PD500 etc. it is better to use a 6BC-1 because it
produces a focussed electron beam that makes a small spot on the anode - >though it cannot handle very high voltage and also the anode melts
easily unless extremely low beam current is used (which is sensible anyway): >See:
https://danyk.cz/rtg2_en.html
See also the text on: >https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the >authorities and the website was disappeared
On Thu, 30 Nov 2023 00:07:52 +1100, Chris Jones
<lugnut808@spam.yahoo.com> wrote:
On 25/11/2023 4:52 pm, Jan Panteltje wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff >>> <dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com>
wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>> wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20
part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor, >>>>> but much has changed since I last thought about this, so I did some
digging.
Dentists are using video imagers and not film any more. I wonder how >>>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>>> USB sensor offers rounded corners, smooth edges, and two sizes (size >>>>> #1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all.
4k is a lot of dollars
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
If you wish to re-purpose a valve/tube that was not intended as an x-ray
tube, instead of a PD500 etc. it is better to use a 6BC-1 because it
produces a focussed electron beam that makes a small spot on the anode -
though it cannot handle very high voltage and also the anode melts
easily unless extremely low beam current is used (which is sensible anyway): >> See:
https://danyk.cz/rtg2_en.html
See also the text on:
https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the
authorities and the website was disappeared
You can buy a dental Xray rig on bay for about $600.
On 30/11/2023 2:37 am, John Larkin wrote:
On Thu, 30 Nov 2023 00:07:52 +1100, Chris Jones
<lugnut808@spam.yahoo.com> wrote:
On 25/11/2023 4:52 pm, Jan Panteltje wrote:
On a sunny day (Fri, 24 Nov 2023 23:04:50 +0200) it happened Dimiter_Popoff
<dp@tgi-sci.com> wrote in <ujr35j$2fd7a$1@dont-email.me>:
On 11/24/2023 19:22, Joe Gwinn wrote:4k is a lot of dollars
On Thu, 23 Nov 2023 15:50:43 -0800, John Larkin <jl@997PotHill.com> >>>>>> wrote:
On Thu, 23 Nov 2023 23:32:35 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>> wrote:
On 11/23/2023 23:13, John Larkin wrote:
On Thu, 23 Nov 2023 23:04:47 +0200, Dimiter_Popoff <dp@tgi-sci.com> >>>>>>>>> wrote:
On 11/21/2023 5:52, John Larkin wrote:
There's an electronics assembly joint near us that's going out of >>>>>>>>>>> business, so we poached three employees and a bunch of equipment. I've
always wanted a high-res xray, and I got one and the guy to run it. >>>>>>>>>>>
https://www.dropbox.com/scl/fo/lfdot6a64pg05z2x1ejo1/h?rlkey=p8lmnoy9388d3v20qv5a8qgwf&dl=0
We also got a 3D AOI board inspection machine which makes equally cool
images.
Really cool. How long does it take it to scan things, say that PLCC 20
part? Resolution looks impressive.
Can you post a photo of the entire thing?
I didn't do it, but I think the images are immediate, real-time. I >>>>>>>>> think they can make movies too.
Now this is even more impressive. Are the images directly digitized? >>>>>>>> I mean CAT scanner like?
I don't know the technology. Maybe a fluorescent sceen and a camera? >>>>>>> Or some exotic sensor technology?
Yes. I remembered that it was a CsI screen and an area photo sensor, >>>>>> but much has changed since I last thought about this, so I did some >>>>>> digging.
Dentists are using video imagers and not film any more. I wonder how >>>>>>> that sensor works.
From Dentron, a Dental X-Ray Sensor manufacturer: "The Dentron Direct >>>>>> USB sensor offers rounded corners, smooth edges, and two sizes (size >>>>>> #1 for children | size #2 for adults) to optimize patient comfort
while receiving a dental X-Ray. The thin, tough, and durable
polyamide housing is less than 1/4" and features a CMOS imaging sensor >>>>>> chip, CSI Scintillator, electronic circuits, shielding foils, and
polyurethane cable and shock absorbers."
Thanks for doing the research. So it looks like they have some
scintillating foil screen and a "normal" photosensor, not bad at all. >>>>
there is plenty on the web for creating your own xrays, for example:
https://hackaday.com/2015/12/31/portable-diy-radiography/
looks like my PMT supply will work!
In the old tube days the HV parallel regulator tubes in color TVs also emitted xrays
an PD500 tube is all you need:
http://www.kronjaeger.com/hv-old/xray/tech/PD500/
I still have some scintillator screen, plenty of cameras.
Maybe one day
I know about one guy at work who got xray burns working on a color TV with the protection screen around the HV tube removed.
After that firebrigade came and tested all color monitors in the studios for radiation.
If you wish to re-purpose a valve/tube that was not intended as an x-ray >>> tube, instead of a PD500 etc. it is better to use a 6BC-1 because it
produces a focussed electron beam that makes a small spot on the anode - >>> though it cannot handle very high voltage and also the anode melts
easily unless extremely low beam current is used (which is sensible anyway):
See:
https://danyk.cz/rtg2_en.html
See also the text on:
https://web.archive.org/web/20101124095650/http://fineartradiography.com/hobbies/x-ray/6vs1.html
I believe this fellow was selling these tubes along with fluorescent
screens and image intensifiers, until he received a visit from the
authorities and the website was disappeared
You can buy a dental Xray rig on bay for about $600.
That person was in the UK, where it is indeed possible to buy such
things and is not stricly illegal if they are used in accordance with
health and safety regulations, probably similar to where you are. I
think his mistake was to advertise them. On the other hand, in Australia
it is an offence to even possess one without a licence, and aside from >(possibly sensible and reasonable) technical requirements, that also
involves paying an annual fee, and I suspect is unlikely to be granted
if you only have a residential address.Whilst it is equally illegal to
use something not intended as an x-ray tube to generate x-rays, it is
less likely to attract attention.
Personally I cannot see much difference between possessing a cabinet
x-ray machine that produces x-rays internally but does not emit
measurable amounts of x-rays, and possessing a CRT television that
produces x-rays internally but does not emit measurable amounts of
x-rays. On the other hand I'm sure that the authorities would see these
two things as different: in the first instance the x-rays are useful, so
they would want their licence fee, and would ideally prefer to prevent
the activity entirely.
Much like EMC regulations - it is illegal to produce a radio transmitter >using certain frequencies to convey information, even if the same amount
of RF can legally be emitted at the same frequency as long as it is
useless hash from a SMPS. They just want to make sure nobody has any fun.
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