Calibration of the IXPE instrument

Fabio Muleri; Carlo Lefevre; Raffaele Piazzolla; Alfredo Morbidini; Fabrizio Amici; Primo Attina; Mauro Centrone; Ettore Del Monte; Sergio Di Cosimo; Giuseppe Di Persio; Yuri Evangelista; Sergio Fabiani; Riccardo Ferrazzoli; Pasqualino Loffredo; Luca Maiolo; Francesco Maita; Leandra Primicino; John Rankin; Alda Rubini; Francesco Santoli; Paolo Soffitta; Antonino Tobia; Alessia Tortosa; Alessio Trois

doi:10.1117/12.2312203

6 July 2018 Calibration of the IXPE instrument

Fabio Muleri, Carlo Lefevre, Raffaele Piazzolla, Alfredo Morbidini, Fabrizio Amici, Primo Attina, Mauro Centrone, Ettore Del Monte, Sergio Di Cosimo, Giuseppe Di Persio, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Pasqualino Loffredo, Luca Maiolo, Francesco Maita, Leandra Primicino, John Rankin, Alda Rubini, Francesco Santoli, Paolo Soffitta, Antonino Tobia, Alessia Tortosa, Alessio Trois

Author Affiliations +

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 106995C (2018) https://doi.org/10.1117/12.2312203
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

IXPE scientific payload comprises of three telescopes, each composed of a mirror and a photoelectric polarimeter based on the Gas Pixel Detector design. The three focal plane detectors, together with the unit which interfaces them to the spacecraft, are named IXPE Instrument and they will be built and calibrated in Italy; in this proceeding, we will present how IXPE Instrument will be calibrated, both on-ground and in-flight. The Instrument Calibration Equipment is being finalized at INAF-IAPS in Rome (Italy) to produce both polarized and unpolarized radiation, with a precise knowledge of direction, position, energy and polarization state of the incident beam. In flight, a set of four calibration sources based on radioactive material and mounted on a filter and calibration wheel will allow for the periodic calibration of all of the three IXPE focal plane detectors independently. A highly polarized source and an unpolarized one will be used to monitor the response to polarization; the remaining two will be used to calibrate the gain through the entire lifetime of the mission.

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Fabio Muleri, Carlo Lefevre, Raffaele Piazzolla, Alfredo Morbidini, Fabrizio Amici, Primo Attina, Mauro Centrone, Ettore Del Monte, Sergio Di Cosimo, Giuseppe Di Persio, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Pasqualino Loffredo, Luca Maiolo, Francesco Maita, Leandra Primicino, John Rankin, Alda Rubini, Francesco Santoli, Paolo Soffitta, Antonino Tobia, Alessia Tortosa, and Alessio Trois "Calibration of the IXPE instrument", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106995C (6 July 2018); https://doi.org/10.1117/12.2312203

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