The Bragg Crystal Spectrometer for SOLAR-A
The Bragg Crystal Spectrometer for SOLAR-A
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DOI：
10.1007/bf00151696
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发表时间：
1991-11
期刊：
影响因子：
2.8
通讯作者：
J. Culhane;E. Hiei;G. Doschek;A. M. Cruise;Y. Ogawara;Y. Uchida;R. Bentley;C. M. Brown;J. Lang;T. Watanabe;J. Bowles;R. Deslattes;U. Feldman;A. Fludra;P. Guttridge;A. Henins;J. Lapington;J. Magraw;J. Mariska;J. Payne;K. Phillips;P. Sheather;K. Slater;K. Tanaka;E. Towndrow;M. Trow;A. Yamaguchi
中科院分区：
文献类型：
--
作者：
J. Culhane;E. Hiei;G. Doschek;A. M. Cruise;Y. Ogawara;Y. Uchida;R. Bentley;C. M. Brown;J. Lang;T. Watanabe;J. Bowles;R. Deslattes;U. Feldman;A. Fludra;P. Guttridge;A. Henins;J. Lapington;J. Magraw;J. Mariska;J. Payne;K. Phillips;P. Sheather;K. Slater;K. Tanaka;E. Towndrow;M. Trow;A. Yamaguchi
布拉格晶体光谱仪(BCS)是构成太阳A任务科学载荷的仪器之一。该光谱仪使用四个弯曲的锗晶体，观察整个太阳，观察到类H和类He的Fexxv、Caxix和Sxvin四个窄波长范围的共振线复合体，分辨率(λ/Δλ)在3,000到6,000之间。该光谱仪的灵敏度比以前的仪器提高了近十倍，从而使时间分辨率优于1 S。主要目的是测量太阳耀斑中产生的1000万至5000万K等离子体的性质，特别强调脉冲阶段等离子体的加热和动力学。本文概述了BCS的科学目标，并介绍了光谱仪的设计、特点和性能。
The Bragg Crystal Spectrometer (BCS) is one of the instruments which makes up the scientific payload of the SOLAR-A mission. The spectrometer employs four bent germanium crystals, views the whole Sun and observes the resonance line complexes of H-like Fexxviand He-like Fexxv, Caxix, and Sxvin four narrow wavelength ranges with a resolving power (λ/Δλ) of between 3000 and 6000. The spectrometer has approaching ten times better sensitivity than that of previous instruments thus permitting a time resolution of better than 1 s to be achieved. The principal aim is the measurement of the properties of the 10 to 50 million K plasma created in solar flares with special emphasis on the heating and dynamics of the plasma during the impulsive phase. This paper summarizes the scientific objectives of the BCS and describes the design, characteristics, and performance of the spectrometers.