Yet another Cs-137 spectrum from the Chachersk soil sample

[Svilen]

Here is my result from the soil sample I got from Alberto Marturini - thank you very much for sending it, Alberto!

5g soil sample from Chachersk (a city in the Gomel Region of Belarus), contaminated with Cs-137 after the Chernobyl disaster. Activity was just few pulses above background, but Cs-137 is easily detectable.
25mm Pb shield, 2x2" NaI(Tl) SPA-3 at 1kV, GS-1100A2, Time: 5h

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[Go-Figure]

Interesting sample. How many CPS above background?

[stamasd]

The next time I go home - and by that I don't mean the place where I live now but the place where I was born, 5000 miles away from here - I should take some sort of gamma spectroscopy setup with me, or at least a survey setup to try and get samples. Even though it's probably going to be difficult to find soil undisturbed for 33 years, as there has been a lot of construction in the past 10-15 years.
FWIW that place is about 400km from Pripyat. :)

[Svilen]

Interesting sample. How many CPS above background?

Just 1-2 cps above background (changes from ~10 to ~12 cps).