Current sense will be to monitor tube condition and avoid a bad erase - this would mean having to x-ray someone again, increasing their exposure. Probably also the reason for the UPS - power fail part way through scanning would mean another x-ray. It may also be that plates need to be scanned within a set time after exposure.
i think i read the screens would stay readable for about 24 hours after exposure. So your right in that the sense is for checking the erase lamp is working. Any residual ghosting on a badly erased screen could be very serious.
Agfa's system, which is still in production, uses a charged photoconductive plate similar to to the drum in a photocopier. An X-ray scintillator in the cartridge is used to expose the photoconductive plate, producing a negative image. In the scanning machine, a contrast medium is spread over the surface of the plate to create a positive image and a line scanner with a halogen light source is used to take an image of the plate. The plate is then cleaned and recharged so it will be ready for the next use.
Nice Video....so many nice parts....i love to teardown units like this.... very interesting...so many to learn...and so many expensive parts, that you could not afford otherwise.....
There are a lot of parts in there which share a lot of similarities with the CR scanner i took apart which was a smaller desktop version. The laser, galvo and PMTs look identical too.
Something in all those motor mechanisms has to open the cartridge and hold the outer casing while the phosphor plate is lowered to be scanned. Because while it can be exposed to X-rays through the casing the laser and erase lights require direct exposure to the plate. I think maybe those 3 lateral arms on the top hold the casing. But what opens it? Perhaps when it is clamped longitudinally that also opens doors on the bottom of the casing so the plate can slide out?
Current sense will be to monitor tube condition and avoid a bad erase - this would mean having to x-ray someone again, increasing their exposure. Probably also the reason for the UPS - power fail part way through scanning would mean another x-ray.
It may also be that plates need to be scanned within a set time after exposure.
i think i read the screens would stay readable for about 24 hours after exposure. So your right in that the sense is for checking the erase lamp is working. Any residual ghosting on a badly erased screen could be very serious.
So many nice parts to reuse. Seem like no expense was spared when building it
I love your honesty about unscrewing the motor, combined with the dry sense of humor "oil is great but not on the floor" 🤣 makes for great videos 😊
Thank you...!
Agfa's system, which is still in production, uses a charged photoconductive plate similar to to the drum in a photocopier. An X-ray scintillator in the cartridge is used to expose the photoconductive plate, producing a negative image. In the scanning machine, a contrast medium is spread over the surface of the plate to create a positive image and a line scanner with a halogen light source is used to take an image of the plate. The plate is then cleaned and recharged so it will be ready for the next use.
It sounds like might be less exposure to the subject than with older X-ray machines - is this so?
Yes, the X-ray exposure is generally lower.
I wonder how expensive the Kodak system was when it was new.
@@PlaywithJunk I’m Sure Anyone Could Retire Regardless Of Their Lifestyle. I Know I Could!!!
Great 👍 Content.
Nice Video....so many nice parts....i love to teardown units like this....
very interesting...so many to learn...and so many expensive parts,
that you could not afford otherwise.....
There are a lot of parts in there which share a lot of similarities with the CR scanner i took apart which was a smaller desktop version. The laser, galvo and PMTs look identical too.
I think it's a japanese product anyway. At least on the optical assembly are lots of japanese stickers. Possible that other brands use the same parts.
it was a Kodak machine too, a CR500.
I’ve always wanted access to medical equipment. These machines have Beautiful Image Processors.
Something in all those motor mechanisms has to open the cartridge and hold the outer casing while the phosphor plate is lowered to be scanned. Because while it can be exposed to X-rays through the casing the laser and erase lights require direct exposure to the plate.
I think maybe those 3 lateral arms on the top hold the casing. But what opens it? Perhaps when it is clamped longitudinally that also opens doors on the bottom of the casing so the plate can slide out?
excellent video, thank you
The HAMAMATSU PMTs are great !!!
I really need those gears. I’m building an electric scooter. Now I know where to 👀
Thank you 🙏
The lense is probably an f-theta lens to provide a flat image
That light would be good for filming, especially if you can get broad-spectrum tubes for it.
Was thinking same, or else a really powerful desk light.
With sunglasses.... yes ;-)
Such an expensive machine, scrapped after only 9 years....
Not so expensive anymore...They are available from $1500 to $4000 (used). But you're right, it's a shame.
Around 17:15 is that a PC-104 controller board stack?
It looks similar but I don't think so. I will take a closer look to those boards.
No. The boards just have a similar size. It's all custom stuff on there.
thanks
"Vom Laster gefallen" - lol
Ja tatsächlich.... nicht so wie bei den Lautsprechern die man am Autobahnrastplatz kaufen kann. ;-)