Development of an electron gun for an ERL based light source in Japan

Journal Article · Tue Aug 04 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3215600· OSTI ID:21316864

Nishimori, N; Nagai, R; Iijima, H; Hajima, R ^[1]; Honda, Y; Muto, T ^[2]; Kuriki, M ^[3]; Yamamoto, M; Okumi, S; Nakanishi, T ^[4]

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1. Japan Atomic Energy Agency (JAEA), Tokai, Naka, Ibaraki 319-1195 (Japan)
2. High Energy Accelerator Research Organization (KEK), Oho, Tsukuba, Ibaraki 305-0801 (Japan)
3. Hiroshima University, Kagamiyama, Higashihiroshima, Hiroshima 739-8530 (Japan)
4. Graduate School of Science, Nagoya University, Nagoya 464-8602 (Japan)

We have developed a prototype DC photoemission electron gun for a future energy recovery linac (ERL) based light source in Japan. The prototype gun is operated at up to 250 kV and is designed to deliver up to 50 mA beam current. A diagnostic beam line for emittance and bunch length measurements has been constructed. We have also designed a new 500 kV DC gun which is capable of producing up to 10 mA electron current with emittance lower than 1 mm-mrad. The high voltage terminal will be isolated by ten ceramics stacked in series. The new gun will satisfy performance required as an injector for the compact ERL, which will be constructed at KEK site as a prototype of the future ERL light source.

• OSTI ID: 21316864
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1149; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM BUNCHING
BEAM CURRENTS
BEAM EMITTANCE
BEAM PRODUCTION
ELECTRIC POTENTIAL
ELECTRON GUNS
ELECTRON SOURCES
ELECTRONS
JAPANESE ORGANIZATIONS
LIGHT SOURCES
LINEAR ACCELERATORS
PERFORMANCE
PHOTOCATHODES
PHOTOEMISSION
POLARIZATION