24 July 2014 Inflight performance and calibration of the NuSTAR CdZnTe pixel detectors
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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.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takao Kitaguchi, Takao Kitaguchi, Varun Bhalerao, Varun Bhalerao, W. Rick Cook, W. Rick Cook, Karl Forster, Karl Forster, Brian W. Grefenstette, Brian W. Grefenstette, Fiona A. Harrison, Fiona A. Harrison, Kristin K. Madsen, Kristin K. Madsen, Peter H. Mao, Peter H. Mao, Hiromasa Miyasaka, Hiromasa Miyasaka, Vikram R. Rana, Vikram R. Rana, } "Inflight performance and calibration of the NuSTAR CdZnTe pixel detectors", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91441R (24 July 2014); doi: 10.1117/12.2057342; https://doi.org/10.1117/12.2057342
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