RADIOFREQUENCY BEAM CONDITIONER FOR FAST-WAVE FREE-ELECTRON GENERATORS OF COHERENT RADIATION

被引：55

作者：

SESSLER, AM ^{[1
]}

WHITTUM, DH ^{[1
]}

YU, LH ^{[1
]}

机构：

[1] BROOKHAVEN NATL LAB,UPTON,NY 11973

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.68.309

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A method for conditioning electron beams is proposed to enhance gain in resonant electron-beam devices by introducing a correlation between betatron amplitude and energy. This correlation reduces the axial-velocity spread within the beam, and thereby eliminates an often severe constraint on beam emittance. Free-electron-laser performance with a conditioned beam is examined and analysis is performed of a conditioner consisting of a periodic array of FODO channels and idealized microwave cavities excited in the TM210 mode. Numerical examples are discussed.

引用

页码：309 / 312

页数：4

共 20 条

[1]

BARLETTA WA, 1988, P INFN INT SCH ELECT, P211

[2] COLLECTIVE INSTABILITIES AND HIGH-GAIN REGIME IN A FREE-ELECTRON LASER [J].