Published 2001 | Version v1
Miscellaneous Metadata-only

4πβ-γ anti-coincidence absolute radioactivity measurement system

Creators

  • 1. China Inst. of Atomic Energy, Beijing (China)

Description

A 4πβ-γ anti-coincidence system has been developed for absolute radioactivity measurement. In this system, a dual ADC live-time HPGe γ-spectroscopy is used as the γ-ray detector, and a 4πβ proportional counter is employed for the β detector. The activity of 60Co, 134Cs and 166mHo have been measured. The combined standard uncertainty of 60Co, 134Cs and 166mHo, is 0.24%, 0.33%, 0.40%, respectively. The data of two former nuclei are compared with the results of 4πβ-γ coincidence counting system of NIM and CIAE and the agreement of these results is satisfactory. The decay-scheme of 166mHo is so complex that an adequate accuracy by using other methods is not acquired. It is also obtained that the result of anti-coincidence measurement is independent on β efficiency. At last, the relative questions in this study are also discussed

Part of:
Proceedings of the 3th national conference on nuclear instrument

Additional details

Publishing Information

Imprint Title
Proceedings of the 3th national conference on nuclear instrument
Imprint Pagination
282 p.
Journal Page Range
p. 236-239

Conference

Title
3. national conference on nuclear instrument
Dates
20-24 Sep 2001
Place
Guilin (China)

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
36024540
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ABSOLUTE COUNTING; ACTIVITY LEVELS; ANTICOINCIDENCE; BETA DETECTION; CESIUM 134; COBALT 60; FOUR-PI COUNTING; GAMMA DETECTION; HOLMIUM 166; RADIOACTIVITY
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; CHARGED PARTICLE DETECTION; COBALT ISOTOPES; COUNTING TECHNIQUES; DAYS LIVING RADIOISOTOPES; DETECTION; ELECTRON CAPTURE RADIOISOTOPES; HOLMIUM ISOTOPES; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; RADIATION DETECTION; RADIOISOTOPES; RARE EARTH NUCLEI; YEARS LIVING RADIOISOTOPES

Optional Information