HIGH RESOLUTION STUDIES IN THE DECAY OF BA133 WITH SEMICONDUCTOR COUNTERS.

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Abstract:

A reinvestigation of some properties of the decay of Ba133 was carried out with high-resolution equipments based on lithium-drifted silicon-and germanium-semiconductor counters. Electromagnetic transitions of 383.7, 356.2, 302.8, 276.5, 223.1, 160.6, 80.9, 79.7, and 53.4 keV have been observed. The K-conversion coefficients and KLM ratios for these transitions were determined either by electron-gamma and gamma-gamma coincidences or by comparison of the intensities of the electron-conversion and gamma-ray peaks. From these values, the multipolarities for the nine transitions were deduced. The electron-capture branching ratios to the four excited levels of Cs133 were derived and the corresponding log ft values are presented. A decay scheme with an unique spin-parity assignment is proposed. Author

Author(s):
Bosch, H. E. ; Haverfield, A. J. ; Szichman, E. ; Abecasis, S. M.
Author Organization(s):
INSTITUTO DE INVESTIGACION AERONAUTICA Y ESPACIAL BUENOS AIRES (ARGENTINA) LA BORATORIO DE RADIACIONES
Descriptive Note:
Serie comunicaciones,
Pagination:
0024

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
LR-16
Contract/Grant Number(s):
DA-ARO-49-092-66-G121
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*RADIOACTIVE DECAY), (*RADIOACTIVE ISOTOPES, (*RADIATION MEASURING INSTRUMENTS, RADIOACTIVE DECAY), (*BARIUM, RADIOACTIVE ISOTOPES), SEMICONDUCTOR DEVICES, RESOLUTION, GAMMA RAY SPECTRA, ELECTRONS, CESIUM, ELECTROMAGNETIC PROPERTIES, ELECTRON CAPTURE
Field(s)/Group(s):
Nuclear Instrumentation, Radioactivity, Radioactive Wastes and Fission Products
Report Date:
1967 Mar 01