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The XGIS instrument on-board THESEUS: Monte Carlo simulations for response, background, and sensitivity

Date Issued
2020
Author(s)
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DOI
Abstract
The response of the X and Gamma Imaging Spectrometer (XGIS) instrument onboard the Transient High Energy Sky and Early Universe Surveyor (THESEUS) mission, selected by ESA for an assessment phase in the framework of the Cosmic Vision M5 launch opportunity, has been extensively modelled with a Monte Carlo Geant-4 based software. In this paper, the expected sources of background in the Low Earth Orbit foreseen for THESEUS are described (e.g. diffuse photon backgrounds, cosmic-ray populations, Earth albedo emission) and the simulated on-board background environment and its effects on the instrumental performance is shown.
Coverage
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray
All editors
den Herder, Jan-Willem A.; Nikzad, Shouleh; Nakazawa, Kazuhiro
Series
Start page
275
Conferenece
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray
Conferenece place
California, United States
Conferenece date
14-18 December, 2020
Uri
Url
Issn Identifier
0277-786X
Ads BibCode
2020SPIE11444E..8PC
Rights
open.access
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11444-275_THESEUS_bkg.pdf

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