Comments on the linear theory of the gyrotron

Borie, E.; Jödicke, B.

doi:10.1109/27.3802

Cited by 57 publications

(13 citation statements)

References 19 publications

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“…The mode selection depends on several parameters, namely, the voltage depression, the limiting current, the ohmic wall loading, etc., described in detail elsewhere [5,6]. On the basis of the mode selection parameters and the start up scenario in the interaction region [23,24], the high order TE 22,6 mode has been selected as the operating mode and the electron beam has been launched at the first radial maxima for the fundamental beammode operation. The TE 22,6 mode exhibits high coupling with the gyrating electron beam.…”

Section: Preliminary Designmentioning

confidence: 99%

Numerical Simulation of Magnetron Injection Gun for 1mw 120 GHZ Gyrotron

Singh¹,

Kumar²,

Kumar³

et al. 2010

PIER Letters

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Abstract-A 40 A triode-type magnetron injection gun for a 1 MW, 120 GHz gyrotron has been designed. The preliminary design has been obtained by using some trade-off equations. Computer simulation has been performed by using the commercially available code EGUN and the in-house developed code MIGANS. The operating voltages of the modulating anode and the accelerating anode are 60 kV and 80 kV, respectively. The electron beam with a low transverse velocity spread (δβ ⊥ max = 3.3%) and velocity ratio, α = 1.38 at beam current = 40 A is obtained. The simulated results of the MIG obtained with the EGUN code have been validated with another trajectory code TRAK. The results on the design output parameters obtained by these two codes were found to be in close agreement. The sensitivity study has been carried out by changing the different gun parameters to decide the fabrication tolerance.

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Section: Preliminary Designmentioning

confidence: 99%

Numerical Simulation of Magnetron Injection Gun for 1mw 120 GHZ Gyrotron

Singh¹,

Kumar²,

Kumar³

et al. 2010

PIER Letters

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“…On the basis of the mode selection parameters and the start-up scenario in the interaction region [20,21], the TE 2,3 mode is selected as the operating mode. On the basis of the selected operating mode, the interaction cavity geometry is calculated.…”

Section: Beam-wave Interaction Analysismentioning

confidence: 99%

Electron beam emission and interaction of double-beam gyrotron

Singh

Kumar

et al. 2012

Fusion Engineering and Design

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“…As a next step, the starting currents [15] were computed for the candidate mode and possible competing modes that might prevent operation in the desired mode. After computing the starting currents by considering all the possible competing modes operating at 84 GHz at s=1, it became clear that the TE 10,4 was best separated from its competing neighbors (see Fig.…”

Section: Mode Selection and Starting Current Calculationsmentioning

confidence: 99%

CONCEPTUAL DESIGN STUDIES OF AN 84 GHz, 500 kW, CW GYROTRON

Kartikeyan

Singh

Borie³

et al. 2007

Int J Infrared Milli Waves

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The feasibility of an 84 GHz, 500 kW, CW gyrotron for ECRH on an experimental tokamak will be presented in this paper. Mode competition and mode selection procedures are carefully investigated by considering various candidate modes and the TE 10,4 mode is chosen as the operating mode. A conventional cylindrical cavity resonator with weak input and output tapers and parabolic roundings is considered for interaction studies. Selfconsistent, both single-mode and time-dependent, calculations are carried out and power and efficiencies are computed for a typical set of beam parameters. The results show that an output power of well over 500 kW, CW and efficiency around 40% can be reached without a depressed collector.

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Comments on the linear theory of the gyrotron

Cited by 57 publications

References 19 publications

Numerical Simulation of Magnetron Injection Gun for 1mw 120 GHZ Gyrotron

Numerical Simulation of Magnetron Injection Gun for 1mw 120 GHZ Gyrotron

Electron beam emission and interaction of double-beam gyrotron

CONCEPTUAL DESIGN STUDIES OF AN 84 GHz, 500 kW, CW GYROTRON

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