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Overview of the CALET Mission to the ISS

机译:CALET访问国际空间站的概述

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The CALorimetric Electron Telescope (CALET) mission is being developed as a standard payload for the Exposure Facility of the Japanese Experiment Module (JEM/EF) on the International Space Station (ISS). The instrument consists of a segmented plastic scintillator charge measuring module, an imaging calorimeter consisting of 8 scintillating fiber planes with a total of 3 radiation lengths of tungsten plates interleaved with the fiber planes, and a total absorption calorimeter consisting of crossed PWO logs with a total depth of 27 radiation lengths. The major scientific objectives for CALET are to search for nearby cosmic ray sources and dark matter by carrying out a precise measurement of the electron spectrum (1 GeV - 20 TeV) and observing gamma rays (10 GeV - 10 TeV). CALET has a unique capability to observe electrons and gamma rays in the TeV region since the hadron rejection power is larger than 105 and the energy resolution better than 2 % above 100 GeV. CALET has also the capability to measure cosmic ray H, He and heavy nuclei up to 1000 TeV. The instrument will also monitor solar activity and search for gamma ray transients. The phase B study has started, aimed at a launch in 2013 by H-II Transfer Vehicle (HTV) for a 5 year observation period on JEM/EF.
机译:量热电子望远镜(CALET)任务正在开发,作为国际空间站(ISS)上日本实验模块(JEM / EF)曝光设施的标准有效载荷。该仪器包括一个分段的塑料闪烁体电荷测量模块,一个成像量热仪,该量热仪由8个闪烁的纤维平面组成,总共3个钨片的辐射长度与纤维平面交织在一起,总吸收量热仪由交叉的PWO原木和总的27个辐射长度的深度。 CALET的主要科学目标是通过精确测量电子光谱(1 GeV-20 TeV)和观察伽马射线(10 GeV-10 TeV)来寻找附近的宇宙射线源和暗物质。 CALET具有独特的观察TeV区域中的电子和伽马射线的能力,因为强子排斥能力大于105,能量分辨率高于100 GeV时优于2%。 CALET还具有测量高达1000 TeV的宇宙射线H,He和重核的能力。该仪器还将监视太阳活动并搜索伽马射线瞬变。 B期研究已经开始,目的是在2013年由H-II转运车(HTV)在JEM / EF上进行为期5年的观察期。

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