113–8941 東京都文京区本駒込2–28–452-28-45 Honkomagome, Bunkyo-ku, Tokyo 113-8941, Japan
「ゲルマニウム半導体検出器等で使用されているスペクトル解析の現状をレビューし，問題点や改善するべき点を抽出するとともに，国内国外での新しい研究成果等をレビューする」ことを目的とする次世代スペクトル解析専門委員会での議論から，サム効果をどのように補正するか，ピーク探査のあるべき姿，測定スペクトルのみから放射能の絶対測定が可能になるかもしれない可能性についての実験と議論，参照スペクトルの活用等を紹介する。
Expert Committee on next-generation gamma-ray spectrometry, Science and Engineering Committee, Japan Radioisotope Association was established September 2015 and now is working on several aspects of gamma-ray spectrometry. Main issues are to review current available gamma-ray spectroscopy software for high purity germanium detector. Our discussion covers wide range of specific aspects of gamma-ray spectroscopy e.g. peak search methods, area calculation and correction of cascade-sum effect. We also review new development about gamma-ray spectroscopy in worldwide. We also will conduct an experiment on the possibility of absolute measurement of sample activity measured by high purity germanium detector using only the nuclear decay chain data and a spectrum of the sample. Reference spectrum will be also collected and distributed to test comparability of current available gamma-ray spectroscopy software. In this article we present current status of our discussion and ask readers to make comments on them.
Key words: peak search; area calculation; gamma-ray spectrometry
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