Advancing materials studies for high-power proton accelerators in J-PARC

Makimura, Shunsuke*; Matoba, Shiro*; Sunagawa, Hikaru*; Naoe, Takashi ; Wakui, Takashi ; Ishida, Taku*; Matsubara, Tsurayuki*; Fukao, Yoshinori*; Takahashi, Hitoshi*; Watanabe, Hiroaki*; RaDIATE Collaboration*

In modern proton accelerators, the survivability of beam-intercepting devices, such as targets, beam windows and beam dumps, under intense beam irradiation is a key factor limiting the achievement of higher beam power. This article introduces the challenges faced by the secondary particle production targets and beam windows at the Japan Proton Accelerator Research Complex (J-PARC), and the developments undertaken to overcome these challenges.

Language	:	English
Journal	:	Proceedings of 71st ICFA Advanced Beam Dynamics workshop on High-Intensity and High-Brightness Hadron Beams (HB2025) (Internet)
Volume	:
Number	:
Pages	:	p.359 - 363
Publication Year/Month	:	2025/10
Meeting title	:	71st ICFA Advanced Beam Dynamics workshop on High-Intensity and High-Brightness Hadron Beams (HB2025)
Held date	:	2025/10
Location (city)	:	Huizhou
Location (country)	:	China
Patent information	:
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Paper URL	:	https://meow.elettra.eu/83/pdf/FRIAA01.pdf
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	J-PARC; Target; Neutron; Muon; Hadron; Neutrino; Beam window
Research Facility	:	J-PARC物質・生命科学実験施設
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Registration No. : BB20251381
JAEA Abstracts No. : 54000178
Paper Submission No. : 30572

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