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首页> 外文会议>Space Technology amp; Applications International Forum (STAIF-99) ptol January 31-February 4, 1999, Albuquerque Hyatt Hotel, NM >Javanced cosmic-ray composition experiment for the space station (ACCESS)
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Javanced cosmic-ray composition experiment for the space station (ACCESS)

机译：用于太空站的Javanced宇宙线组成实验（ACCESS）

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摘要

ACCESS is a large electronic cosmic-ray detector, designed or one of the zenith-pointing external attach points on the International Space Station. ACCESS addresses the fundamental astrophysical question: How do cosmic rays gain their enormous energies? It does this by combining two kinds of measurements. By determining the energy spectra of individual elements with atomic number (Z) in the interval 1<=Z< 28 up to an energy of 10~(15) eV, ACCESS will probe a region of the spectra where theoies of supernova acceleration proedict changes in the cosmic-ray element composition. By measuring individual element aboundances at more moderate energies of every element in the entire periodic table, ACCESS will distinguish between competing theories of how the cosmic-ray nuclei are initially injected into the accelerator that gives them their high energies. ACCESS will identify the atomic number of incident cosmic-ray nuclei using silicon solid-state detectors Cherenkov detectors, and scintillators. It will measure the energy of heavy nuclei (Z>= 4) with transition radiation detectors, and the energy of light nuclei (Z<=8) with an ionization caorimeter.
机译：ACCESS是一种大型电子宇宙射线探测器，设计成国际空间站上指向天顶的外部附着点之一。接入解决了一个基本的天体物理学问题：宇宙射线如何获得其巨大能量？它通过组合两种测量来实现。通过确定原子序数（Z）在1 <= Z <28范围内直至能量10〜（15）eV的单个元素的能谱，ACCESS将探测超新星加速理论发生变化的光谱区域在宇宙射线元素组成中。通过测量整个元素周期表中每个元素的中等能量下的单个元素丰度，ACCESS将区分宇宙射线核最初如何注入加速器并赋予其高能量的竞争理论。爱可信将使用硅固态探测器切伦科夫探测器和闪烁器来识别入射的宇宙射线核的原子序数。它将使用过渡辐射探测器测量重核的能量（Z> = 4），并使用电离量热计测量轻核的能量（Z <= 8）。

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