MAGNETIC FIELD GRADUALLY INCREASING WIGGLER

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MAGNETIC FIELD GRADUALLY INCREASING WIGGLER

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HUANG YU, WANG MING-CHANG, WANG ZHI-JIANG, J.K.LEE

Acta Phys. Sin., 1997, 46(2): 287-292.

Abstract
FEL efficiency improvement with magnetic field increasing wiggler has been- investigated.-Numerical simulation with KMR equations considering space charge effect we find that FEL power increase greatly.It is interested that the larger the energy spread is,the greater the FEL power increasement is.Therefore the-whole electron beam of the accelerator can be used for FEL and higher power can be gotten with magnetic field increasing wiggler.
Authors and contacts
HUANG YU²,

WANG MING-CHANG²,

WANG ZHI-JIANG²,

J.K.LEE¹

(1)Department of Physics,Pohang Institute of Science and Technology,Pohang 790-600; (2)中国科学院上海光学精密机械研究所
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