Design of beam focusing system with permanent magnet for J-PARC LINAC MEBT1

Fuwa, Yasuhiro; Moriya, Katsuhiro; Takayanagi, Tomohiro

Proceedings of 31st International Linear Accelerator Conference (LINAC 2022) (Internet), p.364 - 367, 2022/09

https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO11

MEBT1 (Medium Energy Beam Transport 1) of the J-PARC LINAC is a 3 MeV beam transport system located between the RFQ (Radio Frequency Quadrupole) and DTL (Drift Tube Linac). In the MEBT1, the beam-optical matching for injection into DLT and chopping for injection into acceleration phase of 3 GeV synchrotron, located downstream to the LINAC, are performed. The characteristics of MEBT1 are an important factor in determining the beam quality in the J-PARC accelerator facility. To achieve beam power of 1 MW and beyond, improving the stability and reliability of MEBT1 is an important development issue. The application of permanent magnets to the beam focusing system to the MEBT1 is under consideration to achieve improved stability and reliability. In this presentation, we report the design of focusing magnets using permanent magnet material and the results of the lattice study of MEBT1 with permanent magnets.

The JAERI high energy, heavy ion microprobe system and single hit technique

Tanaka, Ryuichi; Kamiya, Tomihiro

Nuclear Instruments and Methods in Physics Research B, 79(1), p.432 - 435, 1993/07

https://doi.org/10.1016/0168-583X(93)95381-E

no abstracts in English

Field analysis of quadrupole magnet for MeV ion microbeam

Kamiya, Tomihiro; Minehara, Eisuke

Proceedings of 2nd International Symposium on Advanced Nuclear Energy Research; Evolution by Accelerators, p.337 - 341, 1990/01

no abstracts in English

Beam Focusing in Multiaperture Ion Sources

Ohara, Yoshihiro; Matsuda, Shinzaburo; ;

JAERI-M 6438, 20 Pages, 1976/02

JAERI-M-6438.pdf:0.54MB

no abstracts in English