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Quasi-isochronous storage ring for enhanced FEL performance

Conference ·
OSTI ID:114562
;  [1];  [2]
  1. Lawrence Berkeley Lab., CA (United States)
  2. Electrotechnical Lab., Ibaraki (Japan)
A compact storage ring is designed to be used as a driver for an FEL. This ring can be operated very close to zero momentum compaction factor ({alpha}) to increase the electron density and thus the gain of the FEL. In order to control {alpha} with zero dispersion in the straight sections the authors use an inverted dipole located between the bending magnets and 4-families of quadrupoles. By using 3-families of sextupoles they can control the 2 transverse chromaticities and 2nd order momentum compaction. They find that the ring has sufficient dynamic aperture for good performance.
Research Organization:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); Japan Atomic Energy Research Inst., Tokyo (Japan)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
114562
Report Number(s):
LBL--37630; CONF-9508156--2; ON: DE96001104
Country of Publication:
United States
Language:
English

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