HIGH-EFFICIENCY FREE-ELECTRON LASER

被引:34
作者
LIN, AT
DAWSON, JM
机构
关键词
D O I
10.1103/PhysRevLett.42.1670
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The electronic conversion efficiency of a free-electron laser using an intense relativistic electron beam in a rippled magnetic field as its active medium is limited mainly by the destruction of the coherent slow space-charge wave through particle trapping and the depletion of the available beam energy. It is shown that by proper stepping up of the ripple magnetic field strength prior to electrostatic wave saturation, the efficiency can be substantially increased along with some bandwidth improvement and shortening of the device length. © 1979 The American Physical Society.
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页码:1670 / 1673
页数:4
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