Accession Number : AD0820615

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

Descriptive Note : Serie comunicaciones,

Corporate Author : INSTITUTO DE INVESTIGACION AERONAUTICA Y ESPACIAL BUENOS AIRES (ARGENTINA) LA BORATORIO DE RADIACIONES

Personal Author(s) : Bosch, H. E. ; Haverfield, A. J. ; Szichman, E. ; Abecasis, S. M.

Report Date : MAR 1967

Pagination or Media Count : 24

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 K/LM 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)

Descriptors :   *RADIOACTIVE DECAY), (*RADIOACTIVE ISOTOPES, (*RADIATION MEASURING INSTRUMENTS, RADIOACTIVE DECAY), (*BARIUM, RADIOACTIVE ISOTOPES), SEMICONDUCTOR DEVICES, RESOLUTION, GAMMA RAY SPECTRA, ELECTRONS, CESIUM, ELECTROMAGNETIC PROPERTIES, ELECTRON CAPTURE.

Subject Categories : Nuclear Instrumentation
      Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE