title: A beta spectrometer for monitoring environmental matrices.
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.
authors.affiliation: Dipartimento di Fisica, Universitá di Genova, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Palazzolo
authors.forename: P
authors.initials: P
authors.lastname: Prati
authors.forename: G
authors.initials: G
authors.lastname: Ricco
authors.forename: M
authors.initials: M
authors.lastname: Taiuti
mesh_terms: D001610:Beta Particles; D004784:Environmental Monitoring / Q000295:instrumentation*; D012588:Scintillation Counting / Q000295:instrumentation; D013057:Spectrum Analysis / Q000295:instrumentation*