NuSTAR on-ground calibration: I. Imaging quality

Niels J. Westergaard; Kristin K. Madsen; Nicolai F. Brejnholt; Jason E. Koglin; Finn E. Christensen; Michael J. Pivovaroff; Julia K. Vogel

doi:10.1117/12.927076

17 September 2012 NuSTAR on-ground calibration: I. Imaging quality

Niels J. Westergaard, Kristin K. Madsen, Nicolai F. Brejnholt, Jason E. Koglin, Finn E. Christensen, Michael J. Pivovaroff, Julia K. Vogel

Author Affiliations +

Proceedings Volume 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray; 84431X (2012) https://doi.org/10.1117/12.927076
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

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Niels J. Westergaard, Kristin K. Madsen, Nicolai F. Brejnholt, Jason E. Koglin, Finn E. Christensen, Michael J. Pivovaroff, and Julia K. Vogel "NuSTAR on-ground calibration: I. Imaging quality", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84431X (17 September 2012); https://doi.org/10.1117/12.927076

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