DEVELOPMENT OF A 2ND CYCLOTRON HARMONIC GYROTRON OPERATING AT SUBMILLIMETER WAVELENGTHS

被引：57

作者：

IDEHARA, T ^{[1
]}

TATSUKAWA, T ^{[1
]}

OGAWA, I ^{[1
]}

TANABE, H ^{[1
]}

MORI, I ^{[1
]}

WADA, S ^{[1
]}

BRAND, GF ^{[1
]}

BRENNAN, MH ^{[1
]}

机构：

[1] UNIV SYDNEY,SCH PHYS,SYDNEY,NSW 2006,AUSTRALIA

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1992年 / 4卷 / 01期

关键词：

D O I：

10.1063/1.860443

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：

The development of a high-frequency, step-tunable gyrotron operating at submillimeter wavelengths is described. The gyrotron design was optimized for operation at the second harmonic of the electron cyclotron frequency in the TE261 cavity mode, whose resonant frequency is 384 GHz. Experimental results show that second harmonic operation can occur without mode competition as long as the beam current is low (I(b) less-than-or-similar-to 0.8 A), but as the current is increased, the fundamental TE231 cavity mode increases and eventually (I(b) greater-than-or-similar-to 1 A) suppresses the second harmonic. The competition between the two modes is studied in detail. The starting current for second harmonic operation is also studied experimentally and compared with calculated results. Other resonances have also been examined. With the present superconducting magnet, the maximum frequency achieved is 402 GHz (second harmonic operation in the TE551 cavity mode) at several kilowatts.

引用

页码：267 / 273

页数：7

共 18 条

[1] EXPERIMENTAL MEASUREMENTS OF COMPETITION BETWEEN FUNDAMENTAL AND SECOND-HARMONIC EMISSION IN A QUASI-OPTICAL GYROTRON [J].

ALBERTI, S ;

PEDROZZI, M ;

TRAN, MQ ;

HOGGE, JP ;

TRAN, TM ;

MUGGLI, P ;

JODICKE, B ;

MATHEWS, HG .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1990, 2 (11) :2544-2546

[2]

BONDESON A, 1983, INFRARED MILLIMETER, V9, P310

[3]

BOWDEN MH, 1988, 13TH INT C INFR MILL, P150

[4]

Brand G. F., 1985, INFRARED MILLIMETER, V14, P371

[5] OPERATION OF A TUNABLE GYROTRON AT THE 2ND HARMONIC OF THE ELECTRON-CYCLOTRON FREQUENCY [J].

BRAND, GE ;

FEKETE, PW ;

HONG, K ;

MOORE, KJ ;

IDEHARA, T .

INTERNATIONAL JOURNAL OF ELECTRONICS, 1990, 68 (06) :1099-1111

[6] HARMONIC EMISSION FROM HIGH-POWER HIGH-FREQUENCY GYROTRONS [J].

BYERLY, JL ;

DANLY, BG ;

KREISCHER, KE ;

TEMKIN, RJ ;

MULLIGAN, WJ ;

WOSKOBOINIKOW, P .

INTERNATIONAL JOURNAL OF ELECTRONICS, 1984, 57 (06) :1033-1047

[7] NONLINEAR DYNAMICS OF THE GYROTRON TRAVELING-WAVE AMPLIFIER [J].

CHU, KR ;

BARNETT, LR ;

LAU, WK ;

CHANG, LH ;

LIN, AT ;

LIN, CC .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1991, 3 (08) :2403-2408

[8]

FELCH K, 1988, 13TH INT C INFR MILL, P175

[9] DEVELOPMENT OF HIGH-FREQUENCY, CYCLOTRON HARMONIC GYROTRON OSCILLATOR [J].

IDEHARA, T ;

TATSUKAWA, T ;

MATSUMOTO, S ;

KUNIEDA, K ;

HEMMI, K ;

KANEMAKI, T .

PHYSICS LETTERS A, 1988, 132 (6-7) :344-346

[10] DEVELOPMENT OF A 2ND CYCLOTRON HARMONIC GYROTRON OPERATING AT 0.8 MM WAVELENGTH [J].

IDEHARA, T ;

TATSUKAWA, T ;

OGAWA, I ;

TANABE, H ;

MORI, T ;

WADA, S ;

KANEMAKI, T .

APPLIED PHYSICS LETTERS, 1990, 56 (18) :1743-1745

← 1 2 →