The gyrotron: High-power source of millimetre and submillimetre waves

Andronov, A. A.; Flyagin, V.A.; Gaponov, A.V.; Goldenberg, A. L.; Petelin, M. I.; Usov, V. G.; Yulpatov, V. K.

doi:10.1016/0020-0891(78)90045-3

Cited by 136 publications

(27 citation statements)

References 6 publications

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“…In the past, the primary difficulty in utilizing ECRH has been the lack of high power sources at the appropriate frequencies. However, recent progress in the development of gyrotrons (Andronov et al 1978, Gaponov et al 1981, Temkin et al 1982, Felch 1983, Carmel et al 1983) has led to the availability of high power, cw sources appropriate for ECRH on present experiments. This paper will describe our investigation of the operating characteristics of high power (>100 kW), high frequency (>100 GHz) gyrotrons.…”

Section: Introductionmentioning

confidence: 99%

High efficiency operation of a 140 GHz pulsed gyrotron

Kreischer

Schutkeker

Danly

et al. 1984

International Journal of Electronics

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The operating characteristics of a 140 GHz, pulsed gyrotron are reported. Total efficiencies of 36% and ouput powers of 175 kW have been obtained in single mode operation.Measurements of power and efficiency have been made for a variety of modes between 120 and 160 GHz, and these results are in good agreement with predictions based on nonlinear theory. The best results have been obtained with isolated, asymmetric modes, such as the TE 4 , 2 , 1 (127.3 GHz), TE 2 , 3 , 1 (136.7 GHz),and the TE 3 , 3 , 1 (155.6 GHz). Although mode competition was found to prevent the TEO, 3 , 1 mode (139.5 GHz) from reaching the optimum operating conditions, an output power of 138 kW and total efficiency of 29% were achieved with this mode. A variety of new, highly accurate diagnostic techniques that have been developed to measure the power, frequency, and mode content of the output radiation will be reviewed. In addition, the operating characteristics of both laminar and nonlaminar magnetron injection guns will be compared. The high powers and efficiencies obtained in this experiment are promising for the extension of gyrotron output powers to the megawatt range.2

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Section: Introductionmentioning

confidence: 99%

High efficiency operation of a 140 GHz pulsed gyrotron

Kreischer

Schutkeker

Danly

et al. 1984

International Journal of Electronics

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“…The electron cyclotron resonance maser (ECM) has been demonstrated to be an efficient, high power source of millimeter and submillimeter radiation [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Linear theory of an electron cyclotron maser operating at the fundamental

Kreischer

Temkin

1980

Int J Infrared Milli Waves

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“…Recent experiments have led to significant improvements in both power and frequency. Pulsed devices with powers in excess of 100 kW have been built at frequencies of 28 [ [7], 100 [4], and 140 [8] GHz. In addition, high-power CW operation has been achieved at 28 and 60 GHz [5].…”

Section: Introductionmentioning

confidence: 99%