AMPLIFICATION AND SUPERRADIANT EMISSION FROM A 33.3 GHZ FREE-ELECTRON LASER WITH A REVERSED AXIAL GUIDE MAGNETIC-FIELD

被引：22

作者：

CONDE, ME ^{[1
]}

BEKEFI, G ^{[1
]}

机构：

[1] MIT,ELECTR,CAMBRIDGE,MA 02139

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1992年 / 20卷 / 03期

关键词：

D O I：

10.1109/27.142825

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report on a new regime of free electron laser operation using a helical wiggler field and a reversed axial guide magnetic field. The orientation of the axial field is such as to oppose the electron rotation imparted by the helical field. The 33.3 GHz free electron laser amplifier is driven by a mildly relativistic electron beam (750 kV, 300 A, 30 ns) and generates 61 MW of radiation with a 27% conversion efficiency. The results are compared with those obtained when the axial guide field is in its conventional orientation, where considerable loss of power and efficiency is observed.

引用

收藏

页码：240 / 244

页数：5

相关论文

共 11 条

[1] HARMONIC GYRORESONANCE OF ELECTRONS IN COMBINED HELICAL WIGGLER AND AXIAL GUIDE MAGNETIC-FIELDS [J].

CHU, KR ;

LIN, AT .

PHYSICAL REVIEW LETTERS, 1991, 67 (23) :3235-3238

[2] ELECTRON ORBITS AND STABILITY IN REALIZABLE AND UNREALIZABLE WIGGLERS OF FREE-ELECTRON LASERS [J].

DIAMENT, P .

PHYSICAL REVIEW A, 1981, 23 (05) :2537-2552

[3] MICROWAVE STUDIES OF A TUNABLE FREE-ELECTRON LASER IN COMBINED AXIAL AND WIGGLER MAGNETIC-FIELDS [J].

FAJANS, J ;

BEKEFI, G ;

YIN, YZ ;

LAX, B .

PHYSICS OF FLUIDS, 1985, 28 (06) :1995-2006

[4] NONLINEAR POWER SATURATION AND PHASE (WAVE REFRACTIVE-INDEX) IN A COLLECTIVE FREE-ELECTRON LASER-AMPLIFIER [J].

FAJANS, J ;

WURTELE, JS ;

BEKEFI, G ;

KNOWLES, DS ;

XU, K .

PHYSICAL REVIEW LETTERS, 1986, 57 (05) :579-582

[5] ELECTRON ORBITS IN FREE-ELECTRON LASERS WITH HELICAL WIGGLER AND AXIAL GUIDE MAGNETIC-FIELDS [J].

FREUND, HP ;

GANGULY, AK .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1985, 21 (07) :1073-1079

[6] NONLINEAR SIMULATION OF A HIGH-POWER, COLLECTIVE FREE-ELECTRON LASER [J].

FREUND, HP ;

GANGULY, AK .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1992, 20 (03) :245-255

[7] ELECTRON-BEAM DYNAMICS IN COMBINED GUIDE AND PUMP MAGNETIC-FIELDS FOR FREE-ELECTRON LASER APPLICATIONS [J].

FRIEDLAND, L .

PHYSICS OF FLUIDS, 1980, 23 (12) :2376-2382

[8] HIGH-EFFICIENCY OPERATION OF FREE-ELECTRON-LASER AMPLIFIERS [J].

GANGULY, AK ;

FREUND, HP .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1988, 16 (02) :167-171

[9] HIGH-GAIN 35-GHZ FREE-ELECTRON LASER-AMPLIFIER EXPERIMENT [J].

GOLD, SH ;

HARDESTY, DL ;

KINKEAD, AK ;

BARNETT, LR ;

GRANATSTEIN, VL .

PHYSICAL REVIEW LETTERS, 1984, 52 (14) :1218-1221

[10]

PROSNITZ D, 1984, ATA229 LAWR LIV NAT