Towards a physical model for energy deposition via cosmic rays into sub-K bolometric detectors
Towards a physical model for energy deposition via cosmic rays into sub-K bolometric detectors
复制标题
建立通过宇宙射线将能量沉积到亚 K 辐射热探测器的物理模型
DOI：
10.1088/1748-0221/14/01/p01012
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发表时间：
2019
影响因子：
1.3
通讯作者：
B. Maffei
中科院分区：
文献类型：
--
作者：
S. Stever;F. Couchot;N. Coron;B. Maffei
众所周知，宇宙学空间飞行任务对宇宙射线与200 mK以下高灵敏度探测器之间相互作用产生的系统效应特别敏感。为了消除这种信号，必须首先了解能量在这些探测器中的沉积和耗散。利用一个著名的NTD锗复合测辐射热计，我们在实验室模拟宇宙射线的影响，使用放射源。通过对实验数据的分析，我们发现毛刺信号的形状是入射粒子位置的函数，也是入射粒子能量的函数。我们还报告在配合的非线性效应，为了奠定基础，对一个新的物理模型，这种能量传播的测辐射热计。
Cosmology space missions have been known to be particularly sensitive to systematic effects arising from the interaction between cosmic rays and highly sensitive detectors below 200 mK. To remove this signal, one must first understand the deposition and dissipation of energy into these detectors. Using a well-known NTD germanium composite bolometer, we simulate the effect of cosmic rays using a radioactive source in the laboratory. Through analysis of experimental data, we find that the glitch signal shape is a function of incoming particle position, as well as the incoming particle energy. We report also on nonlinear effects in the fit, in order to lay the groundwork towards a new physical model for this energy propagation in the bolometer.