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@article{NAKAZAWA2020163247,
title = {Radiation hardness study for the COMET Phase-I electronics},
journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
volume = {955},
pages = {163247},
year = {2020},
issn = {0168-9002},
doi = {https://doi.org/10.1016/j.nima.2019.163247},
url = {https://www.sciencedirect.com/science/article/pii/S0168900219315220},
author = {Yu Nakazawa and Yuki Fujii and Ewen Gillies and Eitaro Hamada and Youichi Igarashi and MyeongJae Lee and Manabu Moritsu and Yugo Matsuda and Yuta Miyazaki and Yuki Nakai and Hiroaki Natori and Kou Oishi and Akira Sato and Yoshi Uchida and Kazuki Ueno and Hiroshi Yamaguchi and BeomKi Yeo and Hisataka Yoshida and Jie Zhang},
keywords = {Radiation tolerance, Voltage regulator, ADC, DAC},
abstract = {Radiation damage on front-end readout and trigger electronics is an important issue in the COMET Phase-I experiment at J-PARC, which plans to search for the neutrinoless transition of a muon to an electron. To produce an intense muon beam, a high-power proton beam impinges on a graphite target, resulting in a high-radiation environment. We require radiation tolerance to a total dose of 1.0kGy and 1MeV equivalent neutron fluence of 1.0×1012neq cm−2 including a safety factor of 5 over the duration of the physics measurement. The use of commercially-available electronics components which have high radiation tolerance, if such components can be secured, is desirable in such an environment. The radiation hardness of commercial electronic components has been evaluated in gamma-ray and neutron irradiation tests. As results of these tests, voltage regulators, ADCs, DACs, and several other components were found to have enough tolerance to both gamma-ray and neutron irradiation at the level we require.}
}