한국원자력학회:학술대회논문집 (Proceedings of the Korean Nuclear Society Conference)
- 한국원자력학회 1998년도 춘계학술발표회논문집(2)
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- Pages.464-469
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- 1998
Effect of Coincidence Gamma-ray Spectroscopy to the Reduction of Background Spectrum
- Kim, Taewook (Nuclear Environment Technology Institute) ;
- Changsoo Yoou (Nuclear Environment Technology Institute) ;
- Chongmook park (Nuclear Environment Technology Institute) ;
- Kim, Byungtae (Nuclear Environment Technology Institute)
- 발행 : 1998.05.01
초록
A coincidence gamma-ray spectroscopy method was applied to reduce the background radioactivity for measuring the activity of radioisotopes in a sample in the presence of environmental natural radioactivity. A HPGe detector was used for the coincident spectrum as a main detector and a NaI(Tl) scintillation detector for gating purposes as an associated detector. For coincidence spectroscopy the whole energy spectrum of associated detector was used instead of gate signals. The coincident events obtained from the gating spectrum was evaluated by a coincidence computer program in this study instead of timing circuit. In this work, the background of detection environment was reduced to factor 100 and peaks to be determined was reduced to factor 30 using the coincidence gamma-ray spectroscopy.
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