18 July 2016 The on-board calibration system of the X-ray Imaging Polarimetry Explorer (XIPE)
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Abstract
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.
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Silvia Zane, Silvia Zane, Berend Winter, Berend Winter, Craig Theobalds, Craig Theobalds, Theodorus Theodorou, Theodorus Theodorou, Michele Pinchera, Michele Pinchera, Fabio Muleri, Fabio Muleri, Francesca Spada, Francesca Spada, Carmelo Sgro, Carmelo Sgro, Davide Zanetti, Davide Zanetti, Hua Feng, Hua Feng, Ettore del Monte, Ettore del Monte, Alda Rubini, Alda Rubini, Paolo Soffitta, Paolo Soffitta, Ronaldo Bellazzini, Ronaldo Bellazzini, Enrico Bozzo, Enrico Bozzo, Vadim Burwitz, Vadim Burwitz, Alberto J. Castro Tirado, Alberto J. Castro Tirado, Enrico Costa, Enrico Costa, Szymon Gburek, Szymon Gburek, Rene Goosmann, Rene Goosmann, Vladimir Karas, Vladimir Karas, Giorgio Matt, Giorgio Matt, Kirpal Nandra, Kirpal Nandra, Mark Pearce, Mark Pearce, Juri Poutanen, Juri Poutanen, Victor Reglero, Victor Reglero, Maria Dolores Sabau, Maria Dolores Sabau, Andrea Santangelo, Andrea Santangelo, Giampiero Tagliaferri, Giampiero Tagliaferri, Christopher Tenzer, Christopher Tenzer, Jacco Vink, Jacco Vink, Martin Weisskopf, 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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