Published 2023 | Version v1
Miscellaneous Metadata-only

Operation status of the J-PARC high-intensity RF-driven negative hydrogen ion source

Creators

  • 1. Japan Atomic Energy Agency (JAEA), J-PARC Center, Tokai, Ibaraki (Japan)
  • 2. High Energy Accelerator Research Organization (KEK), J-PARC Center, Tokai, Ibaraki (Japan)
  • 3. Nihon Axis Co., Ltd., Hitachinaka, Ibaraki (Japan)

Description

J-PARC initiated the operation of the high-intensity rf-driven negative hydrogen (H-) ion source in 2014 autumn. The ion source produces H- beams with a beam current of 60 mA and a beam energy of 50 keV so that the J-PARC linac can inject the H- beams into the 3 GeV RCS with the beam current of 50 mA and the beam energy of 400 MeV. The 2022/2023 campaign was the first time that the continuous operation of the H- ion source without any exchanges of the ion source until the end of the campaign was examined. The continuous operation time of 4,412 hours was achieved at that time. We present the operation status of the J-PARC H- ion source in this campaign as well as the status of the J-PARC-made internal antenna test. (author)

Availability note (English)

Available from http://pasj.jp/web_publish/pasj2023/proceedings/PDF/FRP3/FRP35.pdf

Abstract (Japanese)

2014年秋よりJ-PARCで運用を開始した高周波駆動型大強度負水素イオン源の2022年秋から2023年夏までの運転状況について報告する。J-PARCでは、リニアックで50mAの負水素イオンビームを引き出すために、イオン源よりビームエネルギー50keVでビーム電流60mAのビームを生成・引き出している。これまで、J-PARCでは昨年夏までの運転で4001時間のイオン源連続運転を達成した。また、2022年秋より運転を再開した後、イオン源は年末年始や年度末の運転休止期間を挟んで、2023年5月現在まで途中で交換することなく、1台のイオン源で運転を継続している。本発表では、J-PARC負水素イオン源の運転状況を報告する。また、イオン源グループで試験を進めている高周波プラズマ生成用のJ-PARC製内部アンテナの状況についても併せて報告する。(著者)
Part of:
Proceedings of the 20th annual meeting of Particle Accelerator Society of Japan

Additional details

Additional titles

Original title (Japanese)
J-PARC大強度高周波駆動負水素イオン源の運転状況

Publishing Information

Imprint Pagination
[1105 p.]
Journal Page Range
p. 928-931

Conference

Title
20. annual meeting of Particle Accelerator Society of Japan
Acronym
PASJ2023
Dates
29 Aug - 1 Sep 2023
Place
Funabashi, Chiba (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
56002157
Subject category
S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BEAM CURRENTS; BEAM EXTRACTION; BEAM TRANSPORT; HYDROGEN IONS 1 MINUS; ION SOURCES; J-PARC SYNCHROTRONS; MAGNETIC FIELDS; PLASMA CONFINEMENT; PLASMA PRODUCTION; RF SYSTEMS; VACUUM STATES; WORK FUNCTIONS
Descriptors DEC
ACCELERATORS; ANIONS; CHARGED PARTICLES; CONFINEMENT; CURRENTS; CYCLIC ACCELERATORS; FUNCTIONS; HYDROGEN IONS; IONS; SYNCHROTRONS

Optional Information

Notes
1 ref., 3 figs., 3 tabs. Imprint:#7B2C#20#56DE# #65E5##672C##52A0##901F##5668##5B66##4F1A##5E74##4F1A#