厦门大学学报（自然科学版）2001，Vol.40Issue(3)：669-674,6.
海洋沉积物岩心放射性核素的γ谱测定
Measurement of Radionuclides in Sediments Core by HPGe γ Spectroscopy
刘广山 1陈敏 1黄奕普 1夏小明 2李炎2
作者信息
- 1. 厦门大学海洋学系,
- 2. 国家海洋局第二海洋研究所,
- 折叠
摘要
Abstract
Natural radionuclides 40K, 210Pb, 226Ra, 228Ra, 228Th, 238U and article 137Cs in sediments core were determined with HPGe γ spectroscopy. The efficiency of diameter 75mm and high 5～45 mm was measured for 14 energy γ-rays. The efficiency versus thickness of sample are fitted using quadratic equation and the correlation coefficients R2 are better 0.98. The efficiency calibration was done for sample geometry of 5～45 mm high by efficiency values that was derived by interpolating. Several sediment cores were measured and the depth profiles of 40K, 210Pb, 226Ra, 228Ra, 228Th, 238U and 137Cs of one of them were disscussed.关键词
沉积物岩心/天然放射性核素/137Cs/效率刻度分类
海洋科学引用本文复制引用
刘广山,陈敏,黄奕普,夏小明,李炎..海洋沉积物岩心放射性核素的γ谱测定[J].厦门大学学报（自然科学版）,2001,40(3):669-674,6.
