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A beta spectrometer for monitoring environmental matrices
M Palazzolo1, P Prati, G Ricco
1Dipartimento di Fisica, Universitá di Genova, Italy.
Health Physics
|February 1, 1992
Abstract:
In environmental matrices, pure beta emitters are often present with other beta-gamma emitters. This work describes a beta spectrometer that allows measurement of pure beta-emitter activities of about 10(-2) Bq. The detection system consists of a plastic scintillator surrounded in a 4 pi geometry by large anticoincidence NaI(Tl) scintillators. Solid, liquid, and gaseous samples can be analyzed, and no chemical separation is necessary. The system is particularly useful for 90Sr measurement.