Major Improvement of Gyrotron Efficiency with Beam Energy Recovery

K. Sakamoto, M. Tsuneoka, Atsushi Kasugai, +4

Physical Review Letters

Beam Energy RecoveryElectrical EngineeringEnergy HarvestingEngineeringPhysics +10

High power 170 GHz gyrotron with synthetic diamond window

K. Sakamoto, Atsushi Kasugai, M. Tsuneoka, +4

Review of Scientific Instruments

Electrical EngineeringEngineeringDiamond WindowRadio FrequencyEnergy Efficiency +11

Chemical vapor deposition diamond window for high-power and long pulse millimeter wave transmission

Atsushi Kasugai, K. Sakamoto, Koji Takahashi, +9

Review of Scientific Instruments

Diamond-like CarbonElectrical EngineeringMillimeter Wave TechnologyEngineeringWindow Assembly +9

High power 170 GHz test of CVD diamond for ECH window

O. Braz, Atsushi Kasugai, K. Sakamoto, +4

International Journal of Infrared and Millimeter Waves

Electrical EngineeringEngineeringHigh Power 170High-frequency DeviceInstrumentation +4

JT-60 power supplies

Ryuichi Shimada, M. Tsuneoka, T. Matsukawa, +9

Fusion Engineering and Design

Electrical EngineeringEngineeringElectric Power TransmissionElectric Power ConversionPower Electronics +2

Recent results in JT-60 experiments

M. Nagami, I. Aoki, N. Akaoka, +202

Plasma Physics and Controlled Fusion

Electrical EngineeringEngineeringPhysicsExperimental TechnologyHydrogen Pellet Injection +12

High-Efficiency Oscillation of 170 GHz High-Power Gyrotron at TE_31,8Mode Using Depressed Collector

Hiroaki Shoyama, K. Sakamoto, Kenichi Hayashi Kenichi Hayashi, +7

Japanese Journal of Applied Physics

Parasitic OscillationElectrical EngineeringGhz High-power GyrotronEngineeringRf Semiconductor +10

The 110-GHz Electron Cyclotron Range of Frequency System on JT-60U: Design and Operation

Y. Ikeda, Atsushi Kasugai, S. Moriyama, +16

Fusion Science & Technology

EngineeringRadio FrequencyPlasma PhysicsEc BeamElectromagnetic Compatibility +14

Stable, Single-Mode Oscillation with High-Order Volume Mode at 1 MW, 170 GHz Gyrotron

K. Sakamoto, Atsushi Kasugai, Koji Takahashi, +4

Journal of the Physical Society of Japan

Electrical EngineeringGhz GyrotronPhysicsSingle-mode OscillationHigh-frequency Device +7

Current drive and confinement studies during LHRF experiments on JT-60

Tsuyoshi Imai, K. Ushigusa, K. Sakamoto, +22

Nuclear Fusion

EngineeringNuclear PhysicsFusion PowerPlasma PhysicsMagnetic Confinement Fusion +19