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ENTROPY-LIKE QUANTITY OF THE EQUILIBRIUM ELECTRONS IN A FREE-ELECTRON LASER WITH REVERSED GUIDE FIELD
Author(s) -
Shichang Zhang,
Qingxiang Liu,
Xu Yan
Publication year - 1994
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.43.225
Subject(s) - electron , physics , cathode ray , free electron model , atomic physics , entropy (arrow of time) , free electron laser , nonlinear system , laser , antiresonance , quantum mechanics , resonance (particle physics)
Nonlinear simulation of the entropy-like quantity is given to the equilibrium electrons in a free-electron laser with reversed guide field. Results indicate that the quality of the electron beam may be better than the oae in the case of positive guide field. However, the quality of the beam is spoiled at the antiresonance. The concl-usions from the entropy-like quantity principally coincide with the experiment made by the MIT researchers.

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