Trinitite

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GigaBecquerel
Posts: 172
Joined: 04 Jul 2020, 07:34

Trinitite

Post by GigaBecquerel » 02 Dec 2020, 02:01

Now that my new setup is all working and stable I wanted to take some spectra with it!
This one is a ~5g sample of trinitite inside my NaI well detector.
Screenshot from 2020-12-01 15-24-03.png
Screenshot from 2020-12-01 15-25-40.png
I am not sure if I am overinterpreting the Ba peaks, and I can't exactly find the Co60, probably due to low detection efficiency at the higher energies.
The peak at ~170 keV might be just Ba133 with a higher amplitude than expected, due to the efficiency curve of my detector, but I am not sure...

Best regards
Lukas
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Sesselmann
Posts: 1392
Joined: 27 Apr 2015, 11:40

Re: Trinitite

Post by Sesselmann » 02 Dec 2020, 08:08

Lukas,

Nice spectra. Interspec is quite helpful for finding peaks in a NAI spectrum.


Steven

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Go-Figure
Posts: 224
Joined: 04 May 2019, 22:24

Re: Trinitite

Post by Go-Figure » 06 Dec 2020, 00:32

Nice spectrum!
Anyway, as far as Ba133 is concerned, the most prominent peaks should be at 81 keV and 356 keV. It sounds a bit strange to me that you can get the Ba133 peak at 160 keV and not the other two.
http://nucleardata.nuclear.lu.se/toi/nu ... iZA=560133

Massimo