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Acta Physica Sinica (Overseas Edition), 1996, Vol. 5(1): 31-38    DOI: 10.1088/1004-423X/5/1/005
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PHASE SPACE ANALYSIS OF FREE ELECTRON LASER EFFICIENCY REDUCTION DUE TO RANDOM FIELD ERROR

HU SU-XING (胡素兴), FU EN-SHENG (傅恩生)
Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, P.O. Box 800-216, Shanghai 201800, China
Abstract  Considering the random field error of the wiggler, we deduce the equation of phase motion and calculate the phase volume of interaction in a real helical wiggler. The result was compared with the case of the ideal wiggler field. We analyze how the random field error causes the efficiency of free electron laser (FEL) to reduce, and simulate the FEL efficiency reduction effect according to the mechanisms which we present in this paper. The consequence agrees excellently with the experiment.
Received:  08 November 1994      Accepted manuscript online: 
PACS:  41.60.Cr (Free-electron lasers)  
  41.75.Ht (Relativistic electron and positron beams)  

Cite this article: 

HU SU-XING (胡素兴), FU EN-SHENG (傅恩生) PHASE SPACE ANALYSIS OF FREE ELECTRON LASER EFFICIENCY REDUCTION DUE TO RANDOM FIELD ERROR 1996 Acta Physica Sinica (Overseas Edition) 5 31

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