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Comparisons of high-linear energy transfer spectra on the ISS and in deep space

机译：国际空间站和深空高能谱的比较

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In deep space, personnel and equipment are exposed to the space radiation environment in the form of energetic particles, specifically galactic cosmic rays and sporadic solar energetic particle events. Radiation fields resulting from these particles are modified by shielding, but most radiation measurements in deep space have been made with detectors that were unshielded or very lightly shielded. In contrast, the space radiation environment on the International Space Station (ISS) is more complicated, with time-dependent modification of the incident flux by the geomagnetic field and complex bulk shielding distributions; measured particle spectra inside the ISS are affected by both types of shielding. The geomagnetic field is also responsible for the existence of the South Atlantic Anomaly, a region of trapped energetic protons and electrons, and hence enhanced radiation dose, through which the ISS travels several times per day on average. Here our primary aim is to compare charged-particle spectra at high linear energy transfer obtained by the Anomalous Long-Term Effects in Astronauts instrument on ISS during high-latitude portions of the orbit to data acquired at the same time by the Cosmic Ray Telescope for the Effects of Radiation and Radiation Assessment Detector instruments, both in deep space. The hypothesis being tested is that these spectra are the same, modulo shielding differences, since the effects of the geomagnetic field are expected to be minimal at high latitudes.
机译：在深空，人员和设备以高能粒子（特别是银河宇宙射线和零星的太阳高能粒子事件）的形式暴露于空间辐射环境。由这些粒子产生的辐射场会通过屏蔽进行修改，但是深空中的大多数辐射测量都是使用未屏蔽或非常屏蔽的探测器进行的。相比之下，国际空间站（ISS）的空间辐射环境更加复杂，地磁场对入射通量的时间依赖性修改和复杂的体屏蔽分布；两种类型的屏蔽都会影响到ISS内部测得的粒子光谱。地磁场也是南大西洋异常的存在的原因，南大西洋异常是一个被捕获的高能质子和电子的区域，因此辐射剂量增加，国际空间站平均每天通过该辐射行进几次。在这里，我们的主要目的是将在高纬度轨道上通过国际空间站上的异常长期效应在国际空间站上获得的带电粒子光谱与由宇宙射线望远镜同时采集的数据进行比较。辐射和辐射评估探测器在深空的影响。被测试的假设是这些光谱是相同的，具有模屏蔽差异，因为预计在高纬度下地磁场的影响将最小。

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