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Published October 2022 | Published
Journal Article Open

NuSTAR non-x-ray background


We present an overview of the NuSTAR non x-ray background. This is dominated by proton scattering in the detector and surrounding material as well as activation lines from of material in the detector and its housing. We also discuss contributions from the solar component (when the Sun is active), and the impact of short-lived radiation belts on the NuSTAR background and activation in the detectors.

Additional Information

CC BY: © 2023 The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. This work was supported under NASA Contract No. NNG08FD60C, and made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Space Science Data Center (SSDC, Italy) and the California Institute of Technology (USA). This material is based upon work supported by NASA under award number 80GSFC21M0002. We thank Dan Stern for constructive comments on this manuscript and to the anonymous referees for their feedback. The authors have no relevant financial interests in the manuscript and no other potential conflicts of interest to disclose. Code, Data, and Materials Availability. All data for this paper are publicly accessible via the NuSTAR repository in the High Energy Astrophysics Archive at NASA GSFC. Data were processed using the publicly available nustardas FTOOLs as described in this paper. All of the filtering and sorting steps are described in the text. Plots were produced using matpotlib in Python.

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August 22, 2023
October 23, 2023