Published March 1997
| Version v1
Journal article
Radioisotopic impurity of 207Bi in BGO scintillators
Creators
- 1. Osaka Prefectural Univ., Sakai (Japan). Reseach Inst. for Advanced Science and Technology
Description
207Bi has been detected in a BGO scintillator by a Ge spectrometer. The concentration of 207Bi was found to be 3.1mBq/Bi-g. Metallic samples of pure bismuth, produced recently and commercially available also contain 207Bi of 2 to 9 mBq/Bi-g. A lead concentrate of PbS containing 0.30% of bismuth and being a raw material of Bi metal has been measured for gamma-emitting radionuclides. An upper limit on the concentration was estimated to be 2 mBq/Bi-g. Besides 207Bi, the presence of a fission product, 137Cs, in the concentrate was examined. The possible origin and route of the 207Bi contamination is discussed. (author)
Additional details
Publishing Information
- Journal Title
- Radioisotopes (Tokyo)
- Journal Volume
- 46
- Journal Issue
- 3
- Journal Page Range
- p. 161-164.
- ISSN
- 0033-8303
- CODEN
- RAISAB
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 28045787
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ACCURACY; BACKGROUND RADIATION; BGO DETECTORS; BISMUTH GERMANATES; BISMUTH 207; CESIUM 137; CONCENTRATION RATIO; GAMMA SPECTRA; IMPURITIES; LEAD
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BISMUTH COMPOUNDS; BISMUTH ISOTOPES; CESIUM ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; GERMANATES; GERMANIUM COMPOUNDS; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOTOPES; MEASURING INSTRUMENTS; METALS; NUCLEI; ODD-EVEN NUCLEI; OXYGEN COMPOUNDS; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; SCINTILLATION COUNTERS; SOLID SCINTILLATION DETECTORS; SPECTRA; YEARS LIVING RADIOISOTOPES