Cosmic ray investigation for the Voyager missions; energetic particle studies in the outer heliosphere—And beyond
Cosmic ray investigation for the Voyager missions; energetic particle studies in the outer heliosphere—And beyond
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航行者号任务的宇宙射线研究；日光层外层及其他地区的高能粒子研究
DOI：
10.1007/bf00211546
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发表时间：
1977
影响因子：
10.3
通讯作者：
W. R. Webber
中科院分区：
文献类型：
--
作者：
E. Stone;R. Vogt;F. Mcdonald;B. Teegarden;J. Trainor;J. Jokipii;W. R. Webber
宇宙射线探测系统（CRS）已经为旅行者任务开发，它将测量≈3-110 MeV的电子能谱和从氢到铁的所有宇宙射线原子核的能谱和元素组成，能量范围为≈1-500 MeV/nuc。氢通过硫的同位素将从≈2-75 MeV/nuc分解。利用CRS数据的研究将提供星系中宇宙射线的能量含量、起源和加速过程、生命史和动力学方面的信息，并有助于理解宇宙射线源中元素的核合成。将特别强调预计存在于星际空间和已知存在于外太阳系的低能量现象。这项研究还将增加我们对宇宙射线、木星电子和低能行星际粒子在行星际空间扩展区域内的传输的理解。对这些研究领域的主要贡献将是测量原子核从H到Fe的三维流模式，以及在更大的能量范围内测量电子，其精度将允许测定各向异性到1%。完全由固态带电粒子探测器组成的系统实现了所需的电荷分辨率、可靠性和冗余度的组合。
A cosmic-ray detector system (CRS) has been developed for the Voyager mission which will measure the energy spectrum of electrons from ≈3–110 MeV and the energy spectra and elemental composition of all cosmic-ray nuclei from hydrogen through iron over an energy range from ≈ 1–500 MeV/nuc. Isotopes of hydrogen through sulfur will be resolved from ≈ 2–75 MeV/nuc. Studies with CRS data will provide information on the energy content, origin and acceleration process, life history, and dynamics of cosmic rays in the galaxy, and contribute to an understanding of the nucleosynthesis of elements in the cosmic-ray sources. Particular emphasis will be placed on low-energy phenomena that are expected to exist in interstellar space and are known to be present in the outer Solar System. This investigation will also add to our understanding of the transport of cosmic rays, Jovian electrons, and low-energy interplanetary particles over an extended region of interplanetary space. A major contribution to these areas of study will be the measurement of three-dimensional streaming patterns of nuclei from H through Fe and electrons over an extended energy range, with a precision that will allow determination of anisotropies down to 1%. The required combination of charge resolution, reliability and redundance has been achieved with systems consisting entirely of solid-state charged-particle detectors.