Fujifilm FCR XG-1 XRAY Scanner, Photomultiplier Tube Reverse-engineering (Part 3 of 3)
Вставка
- Опубліковано 7 жов 2024
- Part 3: Reverse engineering of the Fujifilm PMT12A PMT module that contains the photomultiplier tube, high voltage power supply and analog amplifier from a Fujifilm FCR XG-1 x-ray image scanner / digitizer. Also known as Computerized Radiography (CR), it fulfills the job of scanning a x-ray exposed image plate with a laser beam and extract each pixel illumination with a photo multiplier tube setup. It can scan 72 plate per hour with a maximum resolution of 7080 X 9480 in 12 bits per pixel gray scale.
Pictures and long description: kaizerpowerele...
Discussion of reverse engineering: highvoltagefor...
Discussion of the part 1 and 2 teardown: highvoltagefor...
Part 1, Video: • Fujifilm FCR XG-1 XRAY...
Part 1, Pictures and long description: kaizerpowerele...
Part 2, Video: • Fujifilm FCR XG-1 XRAY...
Part 2, Pictures and long description: kaizerpowerele...
Support the channel, join as a member here: / @kaizerpowerelectronicsdk
↝↝ Additional information and links ↜↜
★ Partners: @arcattackmusic and @franzolielectronics
★ Music by Mikas: / mikasdk (used with commercial permission)
★ T-Shirts, mugs and other merchandise: teespring.com/...
★ Electronics website: kaizerpowerele...
★ Facebook: / kpedk
★ High Voltage Forum: highvoltagefor...
★ My Slow motion videos channel: / @slowmotionvideosdk
★ Find me at Odysee: odysee.com/@Ka... and odysee.com/@Sl...
★ Find me at LBRY: lbry.tv/@Kaize...
$ For commercial/non-commercial licensing of material, contact through here: kaizerpowerelec...
♥ Donations
Please consider one of the following:
♥ Donate via Paypal: fleex@disorder.dk
♥ Donate crypto currency directly on these addresses (Check if there is minimums before transfer):
• Bitcoin: 36gKDS4PfmPdmi2YC9kRASNV9Au8rUXbBS
• Litecoin (old): 3MHsQ1xhPvoqUv51dXJHAHZf2QXLZ7UEbo
• Litecoin (new): MTW1huNfM3fGHRLujQHcyvp4M77nYpLTGF
#electronicscreators #teardown #xray #fuji #electronics
This video was featured on hackaday blog: hackaday.com/2021/06/14/digital-x-ray-scanner-teardown-yields-bounty-of-engineering-goodies/
😊😊😊
😊
😊😊😊😊
Heatshrink over PMTs is common, it stops stray light. You should get some scintillation plastic to convert beta and gamma to photons and do some a gamma spectroscopy. Great video btw, love that acrylic light pipe!
I do test it with a scintillation plastic at the end of the video, my scope unfortunately corrupted my USB stick and all the different detected waveform I wanted to discusd in the video was lost. Test setup was dismantled when I put it in the PC :(
Plastic scintillators are not good for gamma spec work-not enough variation of light levels between low energy vs. high energy emissions.
Nice, the acrylic lightguide is a classical case of to beautiful to scrap but to specific to ever reuse. ;)
It also helps to always have a healthy stack of random coax cables around, I know that pretty well.
This unit seems to be as reusable and as standalone as it can get, great find.
Greetings,
Michael
Haha yeah, I tried putting it in front of a wide range of lamps, tried it as light guide for my drill press, but its just not useful for spreading light. Only collecting.
That acrylic molding is amazing. Must have used some sort of jig and someone skilled to mold it after heating it.
The 8 smaller ends are actually not melted together. It was just silicon glue that had grotten i between them. But its hard to tell how its made as its polished on all edges.
Thanks for the video. A bit of a correction, yes, thorium itself is an alpha source, but stuff down the decay chain (which you also have present) also produces beta particles. And it produces also gamma rays during the decay. What you are picking up are the gamma rays.
Yeah that is what I concluded in editing and added the text about shielding off alpha and beta. Thats how it is with "live" no script recordings :)
wow that is so cool. i have never seen a lightguide like that
Did you see the sack of fibers in the Agfa adc 5155 xray scanner teardown?
@@KaizerPowerElectronicsDk no i haven't watched that yet. Sounds like how LASERs that burn through metal are now made. I once had a chat with afellow who worked with them to make mesh screens and filters...and he said they used fiber bundles and LED technology to bring all the light into the amplifier cavity.
Bro! Your my hero!
Очень интересно. Спасибо.
You can mess up PMTs by shining light into them even when they are off. Shining the laser into it may have killed some of it's sensitivity.
I just quickly flipped through the hamamatsu PMT handbook and could not find a warning about this, its more concentrated on protecting the tube against external electrical field like static. As handling in day light with a static discharge to a synode can accelerate enough electrons. Its not the end of the world for a teardown, but I will keep from using a laser at a disconnected PMT in the future :)
@@KaizerPowerElectronicsDkYou find the warnings on the package a lot of the time.
@@JerryBiehler This unit only had a warning against scratching the light guide :) and there was no original box for the tube with it ;)
Super interesting stuff
Muons, not gamma rays perse are what your detecting, the decay of the gamma ray.
nice I have one of these..
Nice, where did you get that from? Have you had it hooked up? I have been wondering about the output signal waveform. That its both a higher amplitude depending on particle energy, but also seems to vary between 1 to 3 sinewave peaks, so the combined on-time is also higher at times. I am not sure if its just a result of ringing from the first peak or its an feature to get a 2-dimensional value out.