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Proceedings Paper

NuSTAR on-ground calibration: I. Imaging quality
Author(s): Niels J. Westergaard; Kristin K. Madsen; Nicolai F. Brejnholt; Jason E. Koglin; Finn E. Christensen; Michael J. Pivovaroff; Julia K. Vogel
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Paper Abstract

The Nuclear Spectroscopic Telescope Array (NuSTAR) launched in June 2012 carries the first focusing hard Xray (5 - 80 keV) telescope to orbit. The on-ground calibration was performed at the RaMCaF facility at Nevis, Columbia University. During the assembly of the telescopes, mechanical surface metrology provided surface maps of the reflecting surfaces. Several flight coated mirrors were brought to BNL for scattering measurements. The information from both sources is fed to a raytracing code that is tested against the on-ground calibration data. The code is subsequently used for predicting the imaging properties for X-ray sources at infinite distance.

Paper Details

Date Published: 17 September 2012
PDF: 8 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84431X (17 September 2012); doi: 10.1117/12.927076
Show Author Affiliations
Niels J. Westergaard, DTU Space (Denmark)
Kristin K. Madsen, California Institute of Technology (United States)
Nicolai F. Brejnholt, DTU Space (Denmark)
Jason E. Koglin, Columbia Univ. Astrophysics Lab. (United States)
Finn E. Christensen, DTU Space (Denmark)
Michael J. Pivovaroff, Lawrence Livermore National Lab. (United States)
Julia K. Vogel, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

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