A 6MeV linear accelerator is on my list of things to build. There are a lot of design problems as well as construction difficulties, and it's fairly dangerous (something the youtube safety police would correctly criticize). But it's on my list.
The scintillation material is almost certainly Gd2O2S:Tb, I don't know of any other green phosphors in common use. ZnS:Cu is also green, but it hasn't been in common use for a long time.
That's a pretty standard amount of background radiation. If you were to build a similar device you may measure more or less, depending primarily on how much atmosphere is above you.
I think this film detector has volume of sensitive material as some small geiger tube, because efficiently is volume, not area. And what sey real measuring?
Hi I'm a photographer and recently got interested in analog photography and the darkroom process and X-ray analog process in the darkroom. Since they never explain to photographer what is scientifically/chemestry-wise happening I would like to know if you planned on doing that, or is it just to simple/boring of a subject?
A 6MeV linear accelerator is on my list of things to build. There are a lot of design problems as well as construction difficulties, and it's fairly dangerous (something the youtube safety police would correctly criticize). But it's on my list.
Your videos are a perpetual source of inspiration. Thank you
Looks like you and Jeri are in sync, given she just showed an A/D circuit and you need one. Looking forward to the rest of this.
Is there an electronic way to scan the x-ray beam, or will that be mechanical?
Yes. It's a backscatter imaging device -- common in airports these days.
excellent post as always. thoroughly enjoyed every minute.
thank you for sharing
Fantastic Ben ! Thanks for doing this !! Rob in Rochester NY
Could you put a fresnel lens behind the intensifying screen inside the black pyramide to focus the light on the photomultiplier tube?
The scintillation material is almost certainly Gd2O2S:Tb, I don't know of any other green phosphors in common use. ZnS:Cu is also green, but it hasn't been in common use for a long time.
Hi Ben
thanks a lot for useful information
Could you pull a Michio Kaku and make a miniature particle accelerator? That would be amazing!
I have full confidence you could do it too.
Very interesting channel. I did not think there were any creative americans left.
That's a pretty standard amount of background radiation. If you were to build a similar device you may measure more or less, depending primarily on how much atmosphere is above you.
If you can find blue x-ray casette, PMT will pickup much more of the scattered x-ray photons. Much more than green one.
Could someone elaborate why that's the case?
How do you find the time to do so many advanced projects?
Are you going to make another video with the electron microscope? Have you considered using chips which have exposed electronics for this?
I think this film detector has volume of sensitive material as some small geiger tube, because efficiently is volume, not area. And what sey real measuring?
the initial background events... x-ray driven, you think, from the intensifier screen? or could they simply be PMT dark counts?
Are you going to collimate the X-ray source and do an az-el scan?
It took me too long to realize you where building an X-Ray imaging setup. I thought you where just playing with X-Rays in the earlier videos...
What's the difference between phosphorous and Phosphor? You said both when talking about the screen.
Phosphorus is an element.
Phosphor is a compound which emits visible light when exposed to em radiation.
How are you quantifying the radiation?
Hi I'm a photographer and recently got interested in analog photography and the darkroom process and X-ray analog process in the darkroom. Since they never explain to photographer what is scientifically/chemestry-wise happening I would like to know if you planned on doing that, or is it just to simple/boring of a subject?
its the same process, just the chemicals are different.
Are you building a raster-scanned x-ray camera, or something?
You are bloody amazing. You're everything i want to be!
Where can I obtain a xray tube?
¡Awesome.......... Thanks for sharing!. This phosphor is good to decect Alpñha particles. Perhaps, you are deceting muon progenie background too.
Ben, I have a spare Hamamatsu PMT or two for you. Let me know if you want them.
The word is actually frustum (I've made the same mistake).
No worries about all the xrays you're around?
dope
(cool)
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Wear a lead apron! :-)
I think i understood 1 word in 5...
lol
охуеть!