Observation of Coherent Synchrotron Radiation from Three Types of Beam at NewSUBARU

Journal Article · Fri Jan 19 04:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2436017· OSTI ID:21049207

Shoji, Yoshihiko; Ando, Ainosuke; Hashimoto, Satoshi; Hisaoka, Yoshinori; Mitsui, Takayuki ^[1]; Takahashi, Toshiharu ^[2]; Kimura, Hiroaki; Hirono, Touko; Yabashi, Makina ^[3]; Tamasaku, Kenji ^[4]

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1. NewSUBARU, Laboratory of Advanced Science and Technology for Industry (LASTI), University of Hyogo, 1-1-2 Kouto, Kamigori-cho, Ako-gun, 678-1205 Hyogo (Japan)
2. Research Reactor Institute, Kyoto University, 2 AsashiroNishi, Kumatori-cho, Sennan-gun, 590-0494 Osaka (Japan)
3. SPring-8, Japan Synchrotron Radiation Research Institute (JASRI), 1-1-2 Kouto, Mikazuki-cho, Sayo-gun, 678-5195 Hyogo (Japan)
4. SPring-8, RIKEN, 1-1-2 Kouto, Mikazuki-cho, Sayo-gun, 678-5195 Hyogo (Japan)

Coherent synchrotron radiation (CSR) in Tera-Hz region was observed at NewSUBARU. Three types of CSR from three types of electron beam were detected in the storage ring. One was a radiation burst from a high-density single-bunched beam. The burst had a threshold current of 1.0 nC/bunch for the normal operation parameters. The second was a quasi-dc radiation from a low current and short-bunched beam. The ring was operated in a quasi-isochronous (low momentum compaction factor) mode, which could store the short-bunched beam stationary. The bunch charge was as low as 1 pC/bunch and the bunch length was as short as 4 ps FWHM. The third was a radiation pulse following injection. A short-bunched linac beam, with a base width of 20 ps and a charge of 50 pC/bunch, emitted short-pulsed CSR in the storage ring.

• OSTI ID: 21049207
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 879; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM BUNCHING
COHERENT RADIATION
ELECTRON BEAMS
LINEAR ACCELERATORS
PARTICLE BEAMS
PULSES
STEADY-STATE CONDITIONS
STORAGE RINGS
SYNCHROTRON RADIATION
THRESHOLD CURRENT
THZ RANGE