Design and performance of an ionisation chamber for the measurement of low alpha-activities
Design and performance of an ionisation chamber for the measurement of low alpha-activities
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DOI：
10.1016/j.nima.2016.01.033
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发表时间：
2015-11
影响因子：
1.4
通讯作者：
A. Hartmann;J. Hutsch;Felix Kruger;M. Sobiella;H. Wilsenach;K. Zuber
中科院分区：
文献类型：
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作者：
A. Hartmann;J. Hutsch;Felix Kruger;M. Sobiella;H. Wilsenach;K. Zuber
一个新的电离室的α光谱已建成的放射性纯材料的目的，调查长寿命的α衰变。测量利用脉冲形状分析来区分信号和背景事件。本文介绍了该电离室的设计和性能。在1-9 MeV能量范围内，本底计数率为（10.9±0.6）个/天，运行周期为30.8天。本底主要由氡子体产生。
A new ionisation chamber for alpha-spectroscopy has been built from radio-pure materials for the purpose of investigating long lived alpha-decays. The measurement makes use of pulse shape analysis to discriminate between signal and background events. The design and performance of the chamber is described in this paper. A background rate of (10.9±0.6) counts per day in the energy region of 1–9 MeV was achieved with a run period of 30.8 days. The background is dominantly produced by radon daughters.