Does anybody have any experience with any solid state substitutes for a vacuum tube PMT? I am looking for something small and not crazy expensive but with the ability to detect single photons from a scintillator and have it work in small space with low voltage. I know photodiodes and some other devices work well but is there some emerging technology that would be a good fit?
Thanks.
Frank Sanns
Solid State Photo Detectors
-
- Site Admin
- Posts: 2124
- Joined: Fri Jun 14, 2002 2:26 pm
- Real name: Frank Sanns
Solid State Photo Detectors
Achiever's madness; when enough is still not enough. ---FS
We have to stop looking at the world through our physical eyes. The universe is NOT what we see. It is the quantum world that is real. The rest is just an electron illusion. ---FS
We have to stop looking at the world through our physical eyes. The universe is NOT what we see. It is the quantum world that is real. The rest is just an electron illusion. ---FS
-
- Posts: 1850
- Joined: Wed Apr 21, 2004 10:29 pm
- Real name: John Futter
- Contact:
Re: Solid State Photo Detectors
Frank
Not that I know of
you cannot get past the efficiency of the PMT to give gain almost noislessly.
Hamamatsu make a small square PMT about 30mm sq and about 20mm high. We use these in a portable x-ray backscatter arrangement.
Not that I know of
you cannot get past the efficiency of the PMT to give gain almost noislessly.
Hamamatsu make a small square PMT about 30mm sq and about 20mm high. We use these in a portable x-ray backscatter arrangement.
-
- Posts: 590
- Joined: Sat Dec 24, 2005 7:31 pm
- Real name:
Re: Solid State Photo Detectors
Indeed there are "emerging technologies", which tend to replace the PMTs.
You can use APD modules, if the 5 mm detector size is enough for you:
http://sales.hamamatsu.com/assets/pdf/p ... 007e05.pdf
This is also an interesting component - a silicon photomultiplier:
http://sales.hamamatsu.com/en/products/ ... s/mppc.php
You can use APD modules, if the 5 mm detector size is enough for you:
http://sales.hamamatsu.com/assets/pdf/p ... 007e05.pdf
This is also an interesting component - a silicon photomultiplier:
http://sales.hamamatsu.com/en/products/ ... s/mppc.php
-
- Site Admin
- Posts: 2124
- Joined: Fri Jun 14, 2002 2:26 pm
- Real name: Frank Sanns
Re: Solid State Photo Detectors
Thanks.
I requested some pricing info on some of these items. In advance of the HEAS, I was going to try to build a gamma imager with an array of some small detectors. We shall see how that progresses.
Frank Sanns
I requested some pricing info on some of these items. In advance of the HEAS, I was going to try to build a gamma imager with an array of some small detectors. We shall see how that progresses.
Frank Sanns
Achiever's madness; when enough is still not enough. ---FS
We have to stop looking at the world through our physical eyes. The universe is NOT what we see. It is the quantum world that is real. The rest is just an electron illusion. ---FS
We have to stop looking at the world through our physical eyes. The universe is NOT what we see. It is the quantum world that is real. The rest is just an electron illusion. ---FS
-
- Posts: 590
- Joined: Sat Dec 24, 2005 7:31 pm
- Real name:
Re: Solid State Photo Detectors
CZT detectors can be used in arrays. Some advantages are that they are thicker than Si diodes and have very low dark current. They're not outrageously expensive for the smaller sizes.
http://www.icproto.com/typeroom/assets/ ... 09_CZT.pdf
Good luck with your plans.
http://www.icproto.com/typeroom/assets/ ... 09_CZT.pdf
Good luck with your plans.