Simulations of the build-up of transverse and longitudinal structures of the microwave field in the Fusion FEM

被引:23
作者
Bratman, VL
Denisov, GG
Savilov, AV
Shmelyov, MY
Verhoeven, AGA
Urbanus, WH
机构
[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
[2] EURATOM, FOM, Inst Plasmafys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands
关键词
D O I
10.1016/S0168-9002(97)01364-8
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The interaction of longitudinal and transverse modes in the Dutch Fusion FEM is studied, taking the characteristics of the feedback system, provided by quasi-optical stepped reflectors, into account. The simulations predict that the stable single-frequency operation is possible basically due to the frequency dispersion of the feedback system. As for the transverse mode interaction, the selective properties of the feedback system, as well as the effect of the suppression of parasitic modes by the operating mode at the output of the interaction region lead to a very pure transverse structure of the output microwave radiation. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:40 / 44
页数:5
相关论文
共 14 条
[1]   MODE COMPETITION AND SUPPRESSION IN FREE-ELECTRON LASER-OSCILLATORS [J].
ANTONSEN, TM ;
LEVUSH, B .
PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1989, 1 (05) :1097-1108
[2]   NONSTATIONARY GENERATION IN FREE-ELECTRON LASERS [J].
BOGOMOLOV, YL ;
BRATMAN, VL ;
GINZBURG, NS ;
PETELIN, MI ;
YUNAKOVSKY, AD .
OPTICS COMMUNICATIONS, 1981, 36 (03) :209-212
[3]   NONRESONANT EXCITATION AND NONLINEAR SUPPRESSION OF PARASITIC TRANSVERSE-MODES IN FREE-ELECTRON MASERS [J].
BRATMAN, VL ;
SAVILOV, AV .
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 1993, 14 (10) :2119-2130
[4]   COMPETITION OF LONGITUDINAL MODES AND THE SCENARIO OF SINGLE-MODE REGIME BUILDUP FOR THE FOM-FUSION-FEM PROJECT [J].
BRATMAN, VL ;
SAVILOV, AV .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 358 (1-3) :182-185
[5]   PREDICTED OPERATING-CONDITIONS FOR MAINTAINING MODE PURITY IN THE 1-MW 200-GHZ FOM FREE-ELECTRON MASER [J].
CAPLAN, M ;
ANTONSEN, T ;
LEVUSH, B ;
TULUPOV, A ;
URBANUS, W .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 358 (1-3) :174-177
[6]   A MULTIMODE SMALL-SIGNAL ANALYSIS OF THE SINGLE PASS FREE-ELECTRON LASER [J].
DATTOLI, G ;
MARINO, A ;
RENIERI, A .
OPTICS COMMUNICATIONS, 1980, 35 (03) :407-412
[7]  
DENISOV GG, 1993, P SOC PHOTO-OPT INS, V2104, P485
[8]   QUASILINEAR THEORY OF MULTIMODE FREE-ELECTRON LASERS WITH AN INHOMOGENEOUS FREQUENCY BROADENING [J].
GINZBURG, NS ;
SHAPIRO, MA .
OPTICS COMMUNICATIONS, 1982, 40 (03) :215-218
[9]  
GINZBURG NS, 1991, ZH TEKH FIZ+, V61, P133
[10]  
RIVLIN LA, 1981, LASER FOCUS, P82