Gamma spectrometry using eV CZT and PRA10

[Sesselmann]

Ba133

ba.png (22.68 KiB) Viewed 4129 times

Andrew,

Here is an old recording done with eV-CZT on PRA-3, the spectrum is Ba133 and the tall peak is at 81 Kev which is arb.u 0.61.

Line level at around + - 1.75V so divide this by 100 arb U and get 17.5 mA per arb.u,

As far as I recall the eV-CZT was connected directly into the line in port.

Steven

Note: PC line level and amplification can vary from sound card to sound card.

[Nephrondoctor]

Alfred,
very Interesting the use of the sensor ev CZT. What about the low energy gammas ? Did you try with Americium ?
Lodovico

Yes, I tested Am241 too, but I am not sure which files I saved. I am now at work, will look into it this evening. Regards, Alfred

Enclosed two graphs showing 241Am, using CZT and using NaI(Tl). Resolution @59.5 keV appeared worse with CZT (30%) than with NaI (25%), in contrast to the results with Lutetium.

241Am PRA10 Scionix 2x2 inch 900V 0.2 0.5 0 1180K 1700 sec.JPG (50.92 KiB) Viewed 4119 times

241Am PRA10 CZT 150V EMU60% 0.2 30 0 1045K 1265 sec.JPG (46.17 KiB) Viewed 4119 times