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在频域复杂化读取下,X射线过渡边缘传感器微热量计的背景速率用于检测类似太阳动力粒子的频域复杂化读取

D Vaccaro¹, L Gottardi¹, H Akamatsu¹

¹NWO-I/SRON Netherlands Institute for Space Research, Niels Bohrweg 4, 2333 CA Leiden, The Netherlands.

The Review of scientific instruments

|December 11, 2023

概括

过渡边缘传感器 (TES) 微热量计显示出检测状粒子的前景. 这些探测器实现了低X射线背景速率,为未来的敏感轴线搜索实验铺平了道路.

科学领域:

粒子物理学粒子物理学
天体物理学天体物理学
探测器技术探测器技术

背景情况:

未来的axion日光镜需要高度灵敏的X射线探测器来直接检测类似于axion的粒子.
过渡端传感器 (TES) 微热量计提供高光谱性能和低背景功能.
频域复杂化 (FDM) 读数正在为太空运载的X射线天文台开发.

研究的目的:

评估TES微热量计与FDM读数的适用性,用于动力检测实验.
为了测量当前TES探测器技术的X射线背景速率.
评估进一步减少背景的可能性.

主要方法:

使用带有TES微热量计和FDM读数的冷演示器测量X射线背景速率.
开发用于太空应用的TES微热量计和FDM读数技术.
分析探测器性能,以满足轴向搜索要求.

主要成果:

通过当前的TES探测器一代测量了一个有前途的X射线背景速率2.2(2) × 10^-4 cm^-2 s^-1 keV^-1.
该技术被认为是未来axion搜索实验的可行候选者.
没有发现实现所需背景速率 (<10^-7 cm^-2 s^-1 keV^-1) 的根本限制.

结论:

带有FDM读数的TES微热量计是一种有前途的技术,用于直接检测轴心状粒子.
进一步提高背景速率是可行的,满足axion搜索的严格要求.
这种探测器技术可以显著提升对axion-like粒子的搜索.

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