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Proceedings Paper

The x-ray microcalorimeter spectrometer onboard of IXO
Author(s): J. W. den Herder; R. L. Kelley; K. Mitsuda; L. Piro; S. R. Bandler; P. Bastia; K. R. Boyce; M. Bruin; J. A. Chervenak; L. Colasanti; W. B. Doriese; M. DiPirro; M. E. Eckart; Y. Ezoe; E. Figueroa-Feliciano; L. Ferrari; R. Fujimoto; F. Gatti; K. C. Gendreau; L. Gottardi; R. den Hartog; G. C. Hilton; H. Hoevers; K. D. Irwin; Y. Ishisaki; A. Kashani; C. A. Kilbourne; P. de Korte; J. van der Kuur; C. Macculi; T. Mineo; J. H. Nieland; T. Ohashi; S. Paltani; E. Perinati; F. S. Porter; P. J. Shirron; S. J. Smith; Y. Takei; M. Tashiro; G. Torrioli; M. Tsujimoto; H. van Weers; N. Y. Yamasaki
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Paper Abstract

One of the instruments on the International X-ray Observatory (IXO), under study with NASA, ESA and JAXA, is the X-ray Microcalorimeter Spectrometer (XMS). This instrument, which will provide high spectral resolution images, is based on X-ray micro-calorimeters with Transition Edge Sensor thermometers. The pixels have metallic X-ray absorbers and are read-out by multiplexed SQUID electronics. The requirements for this instrument are demanding. In the central array (40 x 40 pixels) an energy resolution of < 2.5 eV is required, whereas the energy resolution of the outer array is more relaxed (≈ 10 eV) but the detection elements have to be a factor 16 larger in order to keep the number of read-out channels acceptable for a cryogenic instrument. Due to the large collection area of the IXO optics, the XMS instrument must be capable of processing high counting rates, while maintaining the spectral resolution and a low deadtime. In addition, an anti-coincidence detector is required to suppress the particle-induced background. In this paper we will summarize the instrument status and performance. We will describe the results of design studies for the focal plane assembly and the cooling systems. Also the system and its required spacecraft resources will be given.

Paper Details

Date Published: 29 July 2010
PDF: 10 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77321H (29 July 2010); doi: 10.1117/12.856018
Show Author Affiliations
J. W. den Herder, SRON Netherlands Institute for Space Research (Netherlands)
R. L. Kelley, NASA Goddard Space Flight Ctr. (United States)
K. Mitsuda, Institute of Space and Astronautical Science (Japan)
L. Piro, INAF - IASF Roma (Italy)
S. R. Bandler, NASA Goddard Space Flight Ctr. (United States)
P. Bastia, Thales Alenia Space Italia S.p.A. (Italy)
K. R. Boyce, NASA Goddard Space Flight Ctr. (United States)
M. Bruin, SRON Netherlands Institute for Space Research (Netherlands)
J. A. Chervenak, NASA Goddard Space Flight Ctr. (United States)
L. Colasanti, INAF - IASF Roma (Italy)
W. B. Doriese, National Institute of Standards and Technology (United States)
M. DiPirro, NASA Goddard Space Flight Ctr. (United States)
M. E. Eckart, NASA Goddard Space Flight Ctr. (United States)
Y. Ezoe, Tokyo Metropolitan Univ. (Japan)
E. Figueroa-Feliciano, Massachusetts Institute of Technology (United States)
L. Ferrari, NASA Goddard Space Flight Ctr. (Italy)
R. Fujimoto, Kanazawa Univ. (Japan)
F. Gatti, Univ. degli Studi di Genova (Italy)
Istituto Nazionale di Fisica Nucleare (Italy)
K. C. Gendreau, NASA Goddard Space Flight Ctr. (United States)
L. Gottardi, SRON Netherlands Institute for Space Research (Netherlands)
R. den Hartog, SRON Netherlands Institute for Space Research (Netherlands)
G. C. Hilton, NASA Goddard Space Flight Ctr. (United States)
H. Hoevers, SRON Netherlands Institute for Space Research (Netherlands)
K. D. Irwin, National Institute of Standards and Technology (United States)
Y. Ishisaki, Tokyo Metropolitan Univ. (Japan)
A. Kashani, NASA Ames Research Ctr. (United States)
C. A. Kilbourne, NASA Goddard Space Flight Ctr. (United States)
P. de Korte, SRON Netherlands Institute for Space Research (Netherlands)
J. van der Kuur, SRON Netherlands Institute for Space Research (Netherlands)
C. Macculi, INAF - IASF Roma (Italy)
T. Mineo, INAF - IASF Palermo (Italy)
J. H. Nieland, SRON Netherlands Institute for Space Research (Netherlands)
T. Ohashi, Tokyo Metropolitan Univ. (Japan)
S. Paltani, Univ. of Geneva (Switzerland)
E. Perinati, INAF - IASF Palermo (Italy)
F. S. Porter, NASA Goddard Space Flight Ctr. (United States)
P. J. Shirron, NASA Goddard Space Flight Ctr. (United States)
S. J. Smith, NASA Goddard Space Flight Ctr. (United States)
Y. Takei, Institute of Space and Astronautical Science (Japan)
M. Tashiro, Saitama Univ. (Japan)
G. Torrioli, Istituto di Fotonica e Nanotecnologie (Italy)
M. Tsujimoto, Institute of Space and Astronautical Science (Japan)
H. van Weers, SRON Netherlands Institute for Space Research (Netherlands)
N. Y. Yamasaki, Institute of Space and Astronautical Science (Japan)


Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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