In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-Ray Spectrometer
In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-Ray Spectrometer
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ASTRO-H (Hitomi) 软 X 射线光谱仪的校准和性能的飞行验证
DOI:
10.1117/12.2234230
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
M. Leutenegger; M. Audard; K. Boyce; G. Brown; M. Chiao; M. Eckart; R. Fujimoto; A. Furuzawa; M. Guainazzi; D. Haas; J. den Herder; T. Hayashi; R. Iizuka; M. Ishida; Y. Ishisaki; R. Kelley; N. Kikuchi; C. Kilbourne; S. Koyama; et al.
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文献类型:
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作者:
S. Osada;T. Mizoguchi;T. Shimono;and K. Ohnishi;M. Leutenegger; M. Audard; K. Boyce; G. Brown; M. Chiao; M. Eckart; R. Fujimoto; A. Furuzawa; M. Guainazzi; D. Haas; J. den Herder; T. Hayashi; R. Iizuka; M. Ishida; Y. Ishisaki; R. Kelley; N. Kikuchi; C. Kilbourne; S. Koyama; et al.
The Soft X-ray Spectrometer (SXS) onboard the Astro-H (Hitomi) orbiting x-ray observatory featured an array of 36 silicon thermistor x-ray calorimeters optimized to perform high spectral resolution x-ray imaging spectroscopy of astrophysical sources in the 0.3-12 keV band. Extensive pre- flight calibration measurements are the basis for our modeling of the pulse-height-energy relation and energy resolution for each pixel and event grade, telescope collecting area, detector efficiency, and pulse arrival time. Because of the early termination of mission operations, we needed to extract the maximum information from observations performed only days into the mission when the onboard calibration sources had not yet been commissioned and the dewar was still coming into thermal equilibrium, so our technique for reconstructing the per-pixel time-dependent pulse-height-energy relation had to be modified. The gain scale was reconstructed using a combination of an absolute energy scale calibration at a single time using a fiducial from an onboard radioactive source, and calibration of a dominant time-dependent gain drift component using a dedicated calibration pixel, as well as a residual time-dependent variation using spectra from the Perseus cluster of galaxies. The energy resolution was also measured using the onboard radioactive sources. It is consistent with instrument-level measurements accounting for the modest increase in noise due to spacecraft systems interference. We use observations of two pulsars to validate our models of the telescope area and detector efficiency, and to derive a more accurate value for the thickness of the gate valve Be window, which had not been opened by the time mission operations ceased. We use observations of the Crab pulsar to refine the pixel-to-pixel timing and validate the absolute timing.
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DOI:
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DOI:
10.1139/p07-110
发表时间:
2007
期刊:
影响因子:
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作者:
R. Marrs
通讯作者:
R. Marrs
DOI:
10.1117/12.2234222
发表时间:
2016
期刊:
Proceedings of the SPIE
影响因子:
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作者:
Ishisaki;Y; Yamada;S; Seta;H; Tashiro;M.S.; Takeda;S; Terada;Y; K;Yuka; Tsujimoto;M; Koyama;S; MItsuda;K.; Sawada;M.; Boyce;K.R.; Chiao;M.P.; Watanabe;T.; Leutenegger;M.A.; Eckart;M. E.; Porter;F. Scott; Kilbourne;C.A.; Kelley;R.L.
通讯作者:
R.L.
DOI:
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发表时间:
2016
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
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作者:
C. Kilbourne;J. Adams;R. Brekosky;J. Chervenak;M. Chiao;M. Eckart;E. Figueroa;M. Galeazzi;C. Grein;C. Jhabvala;R. Kelley;D. Kelly;M. Leutenegger;D. McCammon;F. Porter;A. Szymkowiak;Tomomi Watanabe;Junping Zhao
通讯作者:
Junping Zhao
DOI:
10.1117/1.jatis.4.2.021408
发表时间:
2018
期刊:
Journal of Astronomical Telescopes, Instruments, and Systems
影响因子:
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作者:
G. Sneiderman;P. Shirron;R. Fujimoto;T. Bialas;K. Boyce;M. Chiao;M. Dipirro;M. Eckart;Leslie S. Hartz;Y. Ishisaki;C. Kilbourne;Candace Masters;D. McCammon;K. Mitsuda;H. Noda;F. Porter;A. Szymkowiak;Y. Takei;Mashiro Tsujimoto;S. Yoshida
通讯作者:
S. Yoshida