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Plasma structures observed in gas breakdown using a 1.5 MW, 110 GHz pulsed gyrotron
Regular two-dimensional plasma filamentary arrays have been observed in gas breakdown experiments using a pulsed 1.5 MW, 110 GHz gyrotron. The gyrotron Gaussian output beam is focused to an intensityExpand
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Study of optimal cutting condition for energy efficiency improvement in ball end milling with tool-workpiece inclination
Abstract Reduced energy consumption is critical in industrial applications. In this manuscript, we report our findings on cutting condition improvement for 5-axis machine tools, specificallyExpand
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Progress of high power 170 GHz gyrotron in JAEA
Recent progress on the high power gyrotron development in JAEA is presented. The gyrotron is featured to have a triode-type magnetron injection gun, a cylindrical resonator working at 170 GHz withExpand
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High power millimeter wave experiment of ITER relevant electron cyclotron heating and current drive system.
High power, long pulse millimeter (mm) wave experiments of the RF test stand (RFTS) of Japan Atomic Energy Agency (JAEA) were performed. The system consists of a 1 MW/170 GHz gyrotron, a long andExpand
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Status of the ITER Electron Cyclotron Heating and Current Drive System
The electron cyclotron (EC) heating and current drive (H&CD) system developed for the ITER is made of 12 sets of high-voltage power supplies feeding 24 gyrotrons connected through 24 transmissionExpand
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Development of pellet injector system for large helical device
A multi-pellet injector system has been developed as a fundamental fueling tool for the Large Helical Device (LHD). Since a primary goal of the LHD project is demonstration of steady-stateExpand
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New morphology, symmetry, orientation and perfection of lysozyme crystals grown in a magnetic field when paramagnetic salts (NiCl2, CoCl2 and MnCl2) are used as crystallizing agents
Abstract Chlorides with different paramagnetic cations such as Ni 2+ , Co 2+ and Mn 2+ were used as crystallizing agents instead of NaCl to crystallize hen egg-white lysozyme. NiCl 2 was found toExpand
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Full high-power modulation on a 170 GHz 1 MW ITER gyrotron with a triode magnetron injection gun
A 5 kHz full power modulation experiment is demonstrated on a 170 GHz gyrotron. 5 kHz high-power and beam on/off modulation is achieved by employing a fast short-circuited switch between the anodeExpand
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Development of high power gyrotron for ITER application
Recent progress on the development of a high power 170 GHz gyrotron obtained in Japan Atomic Energy Agency (JAEA) is presented. Firstly, the repetitive operation of 800 kW/600 s with an interval ofExpand
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ECRH System for ITER
A 26 MW Electron Cyclotron Heating and Current Drive (EC H&CD) system is to be installed for ITER. The main objectives are to provide, start‐up assist, central H&CD and control of MHD activity. TheseExpand
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