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| WEPMY013 |
A Spatially Separated Two Frequency RF Gun Design for Beam Brightness Improvement |
2572 |
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- Z. Zhang, C.-X. Tang, Z. Zhang
TUB, Beijing, People's Republic of China
- H.J. Qian
LBNL, Berkeley, California, USA
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Recent theoretical and experimental studies shows that transverse beam brightness of photoinjector can be improved by cigar beam photoemission, and beam peak current are then increased with a RF buncher following the gun. We apply this concept to a S-band photoinjector by adding a harmonic RF buncher closely to a S-band RF gun, forming a compact spatially separated two frequency RF gun, targeting a 200 pC beam with emittance < 0.2 mm·mrad and 30 A peak current. Both S/X-band and S/C-band combinations are considered, and an optimized solution with 30 A peak current and 0.1 mm·mrad slice emittance are presented.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-WEPMY013
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