Standardization of 137Cs — Some remarks on the efficiency function

Autor:	C. Ballaux
Rok vydání:	1983
Předmět:	Physics Radiation Nuclear Energy and Engineering Cesium Isotopes Scintillation counter Gamma ray Extrapolation Radiology Nuclear Medicine and imaging Function (mathematics) Atomic physics Isotopes of caesium Radioactive decay Spectral line
Zdroj:	The International Journal of Applied Radiation and Isotopes. 34:1159-1166
ISSN:	0020-708X
DOI:	10.1016/0020-708x(83)90183-7
Popis:	A solution of 137 Cs has been standardized by means of 4 πγ [NaI(T1)] integral counting and by 4 π (PC)- γ efficiency tracing and extrapolation with 134 Cs as tracer. Both methods giving nearly equal results, a γ-ray-emission probability per decay of 0.8516 ± 0.0020 is deduced for the 661.6-keV transition of 137m Ba. The β-ray spectra of both cesium isotopes have been calculated in order to attempt to interpret the efficiency function.
Databáze:	OpenAIRE
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