The X-Ray Microcalorimeter Spectrometer for the International X-Ray Observatory

被引:15
|
作者
Kelley, R. L. [1 ]
Bandler, S. R. [1 ]
Doriese, W. B. [2 ]
Ezoe, Y. [3 ]
Fujimoto, R. [4 ]
Gottardi, L. [5 ]
den Hartog, R. [5 ]
den Herder, J-W [5 ]
Hoevers, H. [5 ]
Irwin, K.
Ishisaki, Y. [3 ]
Kilbourne, C. A. [1 ]
de Korte, P. [5 ]
van der Kuur, J. [5 ]
Mitsuda, K. [6 ]
Ohashi, T. [3 ]
Piro, L. [7 ]
Porter, F. S. [1 ]
Sato, K. [4 ]
Shinozaki, K. [8 ]
Shirron, P. [1 ]
Smith, S. J. [1 ]
Takei, Y. [6 ]
Whitehouse, P. [1 ]
Yamasaki, N. Y.
机构
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[2] Natl Inst Stand & Technol, Boulder, CO USA
[3] Tokyo Metropolitan Univ, Hachioji, Tokyo, Japan
[4] Kanazawa Univ, Fac Math & Phys, Kanazawa, Ishikawa, Japan
[5] SRON Netherlands Inst Space Res, Utrecht, Netherlands
[6] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan
[7] Inst Astrofis Spaziale & Fis Cosm, Rome, Italy
[8] JAXA, Aerosp Res & Dev Directorate, Tsukuba, Ibaraki, Japan
来源
关键词
Calorimeters; X-ray and gamma-ray spectrometers; Astronomical and space-research instrumentation;
D O I
10.1063/1.3292449
中图分类号
O59 [应用物理学];
学科分类号
摘要
The International X-Ray Observatory (IXO) is under formulation by NASA, ESA and JAXA for deployment in 2022. IXO emerged over the last 18 months as the NASA Constellation-X and ESA/JAXA X-Ray Evolving Universe Spectrometer (XEUS) missions were combined. The driving performance requirements for the X-Ray Microcalorimeter Spectrometer (XMS) are a spectral resolution of 2.5 eV over the central 2'x2' in the 0.3-7.0 keV band, and 10 eV to the edge of the 5'x5' field of view (FOV). The XMS is now based on a microcalorimeter array of Transition-Edge Sensor (TES) thermometers with Au/Bi absorbers and a SQUID MUX readout. One of the concepts studied as part of the mission formulation has a core 40x40 array corresponding to a 2'x2' FOV with 3 '' pixels surrounded by an outer, annular 52 x 52 array of 6 '' pixels that extends the field of view to 5.4'x5.4' with better than 10 eV resolution. There are several options for implementing the readout and cooling system of the XMS under study in the US, Europe and Japan. The ADR system will have from two to five stages depending on the performance of the cryocooler. Mechanical coolers with sufficient cooling power at 4K are available now, and similar to 2K coolers are under development. In this paper we give an overview of the XMS instrument, and some of the tradeoffs to be addressed for this observatory instrument.
引用
收藏
页码:757 / +
页数:2
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