Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Modeling of proton-induced radioactivation background in hard X-ray telescopes: Geant4-based simulation and its demonstration by Hitomi’s measurement in a low Earth orbit

Hirokazu Odaka, Makoto Asai, Kouichi Hagino, Tatsumi Koi, G. M. Madejski, Tsunefumi Mizuno, M. Ohno, Shinya Saito, Tamotsu Sato, Dennis H. Wright, Teruaki Enoto, Yasushi Fukazawa, Katsuhiro Hayashi, J. Kataoka, J. Katsuta, Madoka Kawaharada, Shōgo Kobayashi, M. Kokubun, Philippe Laurent, F. Lebrun, Olivier Limousin, Daniel Maier, Kazuo Makishima, Taketo Mimura, Katsuma Miyake, Kunishiro Mori, Hiroaki Murakami, Takeshi Nakamori, Toshio Nakano, Kazuhiro Nakazawa, Hirofumi Noda, Masayuki Ohta, Masanobu Ozaki, Goro Sato, Rie Sato, H. Tajima, H. Takahashi, Tadayuki Takahashi, Shin׳ichiro Takeda, Takaaki Tanaka, Yasuyuki Tanaka, Y. Terada, Hideki Uchiyama, Y. Uchiyama, Shin Watanabe, K. Yamaoka, T. Yasuda, Yoichi Yatsu, Takayuki Yuasa, Andreas Zoglauer

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 2018

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Summary

This paper describes the development and validation of Geant4-based Monte Carlo simulations to model proton-induced radioactivation background affecting hard X-ray telescopes operating in low Earth orbit. The simulation framework was benchmarked against actual measurements obtained from the Hitomi X-ray observatory, as suggested by the 2018 publication date and the collaborative team composition. The work appears to address a critical technical challenge in space-based high-energy astrophysics instrumentation, namely accurate prediction and mitigation of background radiation that degrades detector sensitivity.

UK applicability

This is fundamental space instrumentation physics with no direct application to UK agriculture, farming systems, soil health, or human nutrition. It does not fall within Vitagri's Pulse Brain scope.

Key measures

Proton-induced radioactivation background levels, simulation accuracy relative to orbital measurements, detector response in low Earth orbit conditions

Outcomes reported

The study presents Geant4-based Monte Carlo simulations of proton-induced radioactivation background in hard X-ray telescopes, validated against in-orbit measurement data from the Hitomi satellite in low Earth orbit.

Theme
Measurement & metrics
Subject
Other / interdisciplinary
Study type
Research
Study design
Simulation study with observational validation
Source type
Peer-reviewed study
Status
Published
System type
Other
DOI
10.1016/j.nima.2018.02.071
Catalogue ID
BFmokjnswo-0wro8h

Topic tags

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