Abstract

The disk-loaded structures (DLS) in the muon LINAC are under development for the J-PARC muon g–2/EDM experiment. Four DLSs with an accelerating gradient of 20 MV/m take charge of muon acceleration from 40 MeV to 212 MeV, which corresponds to 70% to 94% of the speed of light. The quasi-constant gradient type TM01-2π/3 mode DLSs with gradually varying disk spacing was designed and it was confirmed that the cumulative phase slip due to the mismatch between muon and phase velocity can be suppressed to less than 2 degrees at the frequency of 2592 MHz. In addition, the optimum synchronous phase and the lattice were investigated to satisfy the requirements of the total emittance less than 1.5π mm mrad and the momentum spread less than 0.1% in RMS.

Details

Title
Design and beam dynamics study of disk-loaded structure for muon LINAC
Author
Sumi, K 1 ; Iijima, T 1 ; Inami, K 1 ; Sue, Y 1 ; Yotsuzuka, M 1 ; Ego, H 2 ; Otani, M 2 ; Saito, N 2 ; Mibe, T 2 ; Yoshida, M 2 ; Kondo, Y 3 ; Moriya, K 3 ; Takeuchi, Y 4 ; Nakazawa, Y 5 ; Yasuda, H 6 

1  Nagoya University , Nagoya, Aichi , Japan 
2  High Energy Accelerator Research Organization (KEK) , Tsukuba, Ibaraki , Japan 
3  Japan Atomic Energy Agency (JAEA) , Tokai, Naka, Ibaraki , Japan 
4  Kyushu University , Fukuoka , Japan 
5  Ibaraki University , Mito, Ibaraki , Japan 
6  University of Tokyo , Tokyo , Japan 
First page
012038
Publication year
2023
Publication date
Jan 2023
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/2420/1/012038
ProQuest document ID
2767465646
Copyright
Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.