Summary of photon‐beam stabilization at the Photon Factory

The Photon Factory (PF) storage ring is a dedicated synchrotron radiation source. The stability of photon beams is the most important subject regarding such sources, since accurate positioning is especially required for sharply pointing undulator beams. A modification to increase the brightness by r...

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Bibliographic Details
Published in:Review of Scientific Instruments 1992-01, Vol.63 (1), p.509-512
Main Author: Kobayakawa, Hisashi
Format: Article
Language:English
Subjects:
430200 - Particle Accelerators- Beam Dynamics, Field Calculations, & Ion Optics
430400 - Particle Accelerators- Storage Rings
BEAM BUNCHING
BEAM DYNAMICS
BEAM EMITTANCE
BEAM OPTICS
BEAMS
Electromagnetism
electron and ion optics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
KEK PHOTON FACTORY
PARTICLE ACCELERATORS
PHOTON BEAMS
Physics
Radiation by moving charges
RADIATION SOURCES
STABILIZATION
SYNCHROTRON RADIATION SOURCES
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Summary:The Photon Factory (PF) storage ring is a dedicated synchrotron radiation source. The stability of photon beams is the most important subject regarding such sources, since accurate positioning is especially required for sharply pointing undulator beams. A modification to increase the brightness by reducing the emittance of the circulating beams was carried out in 1987 at the PF ring. Though significant upgrades in the brightness have been obtained, many difficulties have simultaneously arisen, such as an increase of beam instabilities and photon‐beam drifts. Stabilizing efforts have been carried out and great progress has been made: building distortion due to thermal stress, reduced to 1/6 by thermally insulating the roof.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1142693