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Proceedings Paper

Inflight performance and calibration of the NuSTAR CdZnTe pixel detectors
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Paper Abstract

The Nuclear Spectroscopic Telescope Array (NuSTAR) satellite is a NASA Small Explorer mission designed to operate the first focusing high-energy X-ray (3-79 keV) telescope in orbit. Since the launch in June 2012, all the NuSTAR components have been working normally. The focal plane module is equipped with an 155Eu radioactive source to irradiate the CdZnTe pixel detectors for independent calibration separately from optics. The inflight spectral calibration of the CdZnTe detectors is performed with the onboard 155Eu source. The derived detector performance agrees well with ground-measured data. The in-orbit detector background rate is stable and the lowest among past high-energy X-ray instruments.

Paper Details

Date Published: 24 July 2014
PDF: 7 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91441R (24 July 2014); doi: 10.1117/12.2057342
Show Author Affiliations
Takao Kitaguchi, RIKEN (Japan)
Varun Bhalerao, Inter-Univ. Ctr. for Astronomy and Astrophysics (India)
W. Rick Cook, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Karl Forster, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Brian W. Grefenstette, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Fiona A. Harrison, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Kristin K. Madsen, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Peter H. Mao, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Hiromasa Miyasaka, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)
Vikram R. Rana, Cahill Ctr. for Astronomy and Astrophysics, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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