Hard X-ray and low-energy gamma-ray spectrometers
Hard X-ray and low-energy gamma-ray spectrometers
复制标题
硬 X 射线和低能伽马射线能谱仪
DOI：
10.1007/bf00148595
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
R. Starr
中科院分区：
文献类型：
--
作者：
N. Gehrels;C. Crannell;D. Forrest;R. Lin;L. Orwig;R. Starr
本文介绍了用于太阳硬X射线和γ射线谱仪的闪烁探测器和半导体探测器的基本工作原理和特性。闪烁材料，如碘化钠提供高阻止能力的入射伽马射线，适度的能量分辨率，和相对简单的操作。迄今为止，它们是太阳伽马射线光谱学中最常用的探测器。闪烁体BGO具有比NaI更高的阻止本领，但能量分辨率较差。半导体材料如Ge的主要优点是它们的高能量分辨率。蒙特-卡罗模拟的反应，碘化钠和锗探测器模型太阳耀斑输入显示的好处，高分辨率的研究谱线。除了锗之外，目前没有任何半导体材料具有足够的组合尺寸和纯度，可以制造用于太阳研究的通用硬X射线和伽马射线探测器。
Basic principles of operation and characteristics of scintillation and semi-conductor detectors used for solar hard X-ray and gamma-ray spectrometers are presented. Scintillation materials such as NaI offer high stopping power for incident gamma rays, modest energy resolution, and relatively simple operation. They are, to date, the most often used detector in solar gamma-ray spectroscopy. The scintillator BGO has higher stopping power than NaI, but poorer energy resolution. The primary advantage of semi-conductor materials such as Ge is their high-energy resolution. Monte-Carlo simulations of the response of NaI and Ge detectors to model solar flare inputs show the benefit of high resolution for studying spectral lines. No semi-conductor material besides Ge is currently available with adequate combined size and purity to make general-use hard X-ray and gamma-ray detectors for solar studies.