17–22 May 2026
C.I.D
Europe/Zurich timezone

Short-bunch extraction in J-PARC RCS

WEP4641
20 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC4.A17: Hadron accelerators: High Intensity Accelerators Poster session

Speaker

Kyosuke Adachi (Japan Atomic Energy Agency)

Description

The 3GeV Rapid-Cycling Synchrotron (RCS) at J-PARC supplies the proton beam to the Materials and Life Science Experimental Facility (MLF), where it is utilized for the production of secondary particle beams such as muons and neutrons. Secondary particle beams are used in experiments in condensed matter physics, polymer chemistry, biophysics, and other fields. Experiments requiring high time resolution demand an RCS extraction beam with a short-bunch width. The RCS extraction beam is shortened through bunch rotation driven by a manipulation of the fundamental RF voltage. The present study investigated the optimization of this method. In addition, the effectiveness of employing a second-harmonic RF voltage in combination was evaluated. Detailed results on short-bunch extraction in the RCS are reported in this presentation.

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Author

Kyosuke Adachi (Japan Atomic Energy Agency)

Co-authors

Fumihiko Tamura (Japan Atomic Energy Agency) Dr Hidefumi Okita (Japan Atomic Energy Agency) Masahiro Nomura (Japan Proton Accelerator Research Complex, Japan Atomic Energy Agency) Taihei Shimada (Japan Atomic Energy Agency) Masahito Yoshii (High Energy Accelerator Research Organization) Chihiro Ohmori (High Energy Accelerator Research Organization) Katsushi Hasegawa (High Energy Accelerator Research Organization) Keigo Hara (High Energy Accelerator Research Organization) Kiyomi Seiya (High Energy Accelerator Research Organization) Yasuyuki Sugiyama (High Energy Accelerator Research Organization)

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