Quasi-Isochronus Operation at NewSUBARU

Journal Article · Wed May 12 04:00:00 EDT 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1757733· OSTI ID:20653013

Shoji, Y; Hashimoto, S; Ando, A ^[1]

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1. NewSUBARU/SPring-8, LASTI, Himeji Institute of Technology, 1-1-2 Kouto, Kamigori, Hyogo, 678-1205 (Japan)

A quasi-isochronus operation is one of the operation modes of NewSUBARU, a 1.5 GeV VUV storage ring. NewSUBARU has six invert bending magnets to control the momentum compaction factor. The aim of this research is to explore the extreme reduction of electron bunch length by reducing the momentum compaction factor, which is a conventional method. We experimentally reduced the momentum compaction factor from 0.0014 down to less than 10-5, keeping the beam in the ring. The second-order momentum compaction factor was adjusted to almost zero, while keeping the third-order momentum compaction factor positive. The ring was operated at 1.0 GeV. Using a streak camera, the shortest bunch length we observed was 4 ps FWHM.

• OSTI ID: 20653013
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 705; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM BUNCHING
CONTROL SYSTEMS
ELECTRON BEAMS
FAR ULTRAVIOLET RADIATION
GEV RANGE 01-10
OPERATION
STORAGE RINGS
STREAK CAMERAS
SYNCHROTRON RADIATION
WIGGLER MAGNETS