Beam test of the negative ion source for the high intensity proton accelerator

Shimooka, Takashi; Oguri, Hidetomo; Namekawa, Yuya*; Tomisawa, Tetsuo; Okumura, Yoshikazu; Hasegawa, Kazuo

JAERI-Tech 2002-038, 30 Pages, 2002/03

JAERI-Tech-2002-038.pdf:1.74MB

The high intensity proton accelerator facility project which is conducted jointly by JAERI and KEK is to use the secondary particles produced by nuclear spallation for various science studies. A negative hydrogen ion beam source for the accelerator is required to extract a peak beam current of more than 60 mA with a duty factor of 2.5 %. In addition, the ions should be negatively charged in order to improve the capture efficiency of the beam injected into a synchrotron. At JAERI, a negative ion source for the project has been developed with various technologies based on the large negative ion source for the nuclear fusion application. The negative ion beam current and the rms normalized emittance of 72 mA and 0.15 mm.mrad were achieved in the cesium seeded operation, respectively. A waveform of the pulsed beam current was sensitive to the operation gas flow rate, and became to have a good flatness at about 16 SCCM. These results show that the basic performance of the ion source satisfies the requirement of the ion source for the project.

Present status of R&D for superconducting proton linac

Mizumoto, Motoharu

KEK Proceedings 2000-23, p.1 - 3, 2001/02

no abstracts in English

System design of a superconducting linac for the JAERI-KEK joint project

Hasegawa, Kazuo; Mizumoto, Motoharu; Ouchi, Nobuo; Noguchi, Shuichi*

KEK Proceedings 99-25, p.28 - 32, 2000/02

no abstracts in English

Development of a H ion source for the high intensity proton linac at Japan Atomic Energy Research Institute

Oguri, Hidetomo; Tomisawa, Tetsuo; Kinsho, Michikazu; Okumura, Yoshikazu; Mizumoto, Motoharu

Review of Scientific Instruments, 71(2), p.975 - 977, 2000/02

https://doi.org/10.1063/1.1150363

no abstracts in English

Development of superconducting linac for the KEK/JAERI joint project

Ouchi, Nobuo; Mizumoto, Motoharu; Kusano, Joichi; Chishiro, Etsuji; Hasegawa, Kazuo; Akaoka, Nobuo*; Saito, Kenji*; Noguchi, Shuichi*; Kako, Eiji*; Inoue, Hitoshi*; et al.

Proceedings of 20th International Linac Conference (CD-ROM), 1 Pages, 2000/00

no abstracts in English