18 July 2016 The on-board calibration system of the X-ray Imaging Polarimetry Explorer (XIPE)
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The calibration system for XIPE is aimed at providing a way to check and correct possible variations of performance of the Gas Pixel Detector during the three years of operation in orbit (plus two years of possible extended operation), while facilitating the observation of the celestial sources. This will be performed by using a filter wheel with a large heritage having a set of positions for the calibration and the observation systems. In particular, it will allow for correcting possible gain variation, for measuring the modulation factor using a polarized source, for removing non interesting bright sources in the field of view and for observing very bright celestial sources. The on-board calibration system is composed of three filter wheels, one for each detector and it is expected to operate for a small number of times during the year. Moreover, since it operates once at a time, within the observation mode, it allows for simultaneous calibration and acquisition from celestial sources on different detectors. In this paper we present the scope and the requirements of the on-board calibration system, its design, and a description of its possible use in space.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Silvia Zane, Berend Winter, Craig Theobalds, Theodorus Theodorou, Michele Pinchera, Fabio Muleri, Francesca Spada, Carmelo Sgro, Davide Zanetti, Hua Feng, Ettore del Monte, Alda Rubini, Paolo Soffitta, Ronaldo Bellazzini, Enrico Bozzo, Vadim Burwitz, Alberto J. Castro Tirado, Enrico Costa, Szymon Gburek, Rene Goosmann, Vladimir Karas, Giorgio Matt, Kirpal Nandra, Mark Pearce, Juri Poutanen, Victor Reglero, Maria Dolores Sabau, Andrea Santangelo, Giampiero Tagliaferri, Christopher Tenzer, Jacco Vink, Martin Weisskopf, "The on-board calibration system of the X-ray Imaging Polarimetry Explorer (XIPE)", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99054H (18 July 2016); doi: 10.1117/12.2233448; https://doi.org/10.1117/12.2233448


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