Influence of Possible Reflections on the Operation of European ITER Gyrotrons

Dumbrājs, O.

doi:10.1007/s10762-010-9653-9

Cited by 7 publications

(1 citation statement)

References 6 publications

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“…Therefore, it has great application prospects on high-power microwave weapon, radar, biomedicine, and International Thermonuclear Experimental Reactor (ITER). [1][2][3][4][5][6] As the significant part of the gyrotron, the magnetron injection electron gun (MIG) always determines the operation characteristics of the gyrotron. [7][8][9][10] The main function of the MIG is to generate an electron beam with high transverse energy and small velocity spread.…”

Section: Introductionmentioning

confidence: 99%

Modeling, simulation, and fabrication of electron optic system for application on 105 GHz high‐power gyrotron

Guo

Niu

Liu

et al. 2019

Int J Numerical Modelling

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This paper introduces the modeling, simulation, and fabrication of the electron optic system (EOS) for high-power 105 GHz gyrotron, which includes single anode magnetron injection electron gun, magnetic system, and the collector. Based on the specific research project and the theory of electron optics, the structure with detailed parameters is modeled and simulated by using two different electromagnetic analysis softwares. The simulation results show that the electron beam velocity ratio is around 1.3, and the electron landing regions from the two softwares are almost agreed with each other. At last, the components of the EOS are fabricated for the next assembling step.

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Section: Introductionmentioning

confidence: 99%

Modeling, simulation, and fabrication of electron optic system for application on 105 GHz high‐power gyrotron

Guo

Niu

Liu

et al. 2019

Int J Numerical Modelling

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A Novel Ka-Band Large Power Portable Water Load for Application with Gyrotron

Guo

et al. 2018

J Infrared Milli Terahz Waves

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Study of the Effect of Reflections on High-Power, 110-GHz Pulsed Gyrotron Operation

Genoud

Picard

Schaub

et al. 2021

J Infrared Milli Terahz Waves

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The effect of reflection is studied experimentally and theoretically on a high-power 110 GHz gyrotron operating in the TE 22,6 mode in 3 µs pulses at 96 kV, 40 A. The experimental setup allows variation of the reflected power from 0 to 33 % over a range of gyrotron operating conditions. The phase of the reflection is varied by translating the reflector along the axis. Operating at a higher efficiency point, at 4.40 T with 940 kW of output power, reflected power exceeding 11% causes a switch from operation in the TE 22,6 to simultaneous operation in the TE 22,6 and TE 21,6 modes with a large decrease of the total gyrotron output power. This switching effect is in good agreement with simulations using the MAGY code. Operating at a more stable point, 4.44 T with 580 kW of output power, when the reflection is increased, the output power remains in the TE 22,6 mode but it decreases monotonically with increasing reflection, dropping to 200 kW at 33% reflection. Furthermore, at a reflection above 22%, a power modulation at 25 to 30 MHz is observed, independent of the phase of the reflected wave. Such a modulated signal may be useful in spectroscopic and other applications.

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Influence of Possible Reflections on the Operation of European ITER Gyrotrons

Cited by 7 publications

References 6 publications

Modeling, simulation, and fabrication of electron optic system for application on 105 GHz high‐power gyrotron

Modeling, simulation, and fabrication of electron optic system for application on 105 GHz high‐power gyrotron

A Novel Ka-Band Large Power Portable Water Load for Application with Gyrotron

Study of the Effect of Reflections on High-Power, 110-GHz Pulsed Gyrotron Operation

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