Search Results - "Sakakita, H."

Nanocrystalline diamond growth in a surface-wave plasma by Tsugawa, K., Kawaki, S., Ishihara, M., Kim, J., Koga, Y., Sakakita, H., Koguchi, H., Hasegawa, M.

“…A surface-wave excited plasma is exploited in a diamond growth process by microwave plasma chemical vapor deposition method. Nanocrystalline diamond films with…”
Get full text

Synthesis of endohedral-fullerenes using laser ablation plasma from solid material and vaporized fullerenes by Itagaki, H., Fujiwara, Y., Minowa, Y., Ikehara, Y., Kaneko, T., Okazaki, T., Iizumi, Y., Kim, J., Sakakita, H.

“…We have recently developed a technique to synthesize endohedral fullerenes that involves the collision of vaporized fullerenes and plasma particles produced…”
Get full text

Requirements and modelling of fast particle injection in RFX-mod tokamak plasmas by Vallar, M., Artaud, J.F., Bolzonella, T., Sakakita, H., Valisa, M., Vincenzi, P.

“…The planned upgrade of the RFX-mod device is a good opportunity to widen the operational space of the machine, in both RFP and tokamak configurations…”
Get full text

Improved particle confinement in transition from multiple-helicity to quasi-single-helicity regimes of a reversed-field pinch by Frassinetti, L, Predebon, I, Koguchi, H, Yagi, Y, Hirano, Y, Sakakita, H, Spizzo, G, White, R B

“…The quasi-single-helicity (QSH) state of a reversed-field pinch (RFP) plasma is a regime in which the RFP configuration can be sustained by a dynamo produced…”
Get full text

The Monte Carlo Simulation of a 1-MW Neutral Beam Injector on RFX-Mod by Pilan, N., Agostinetti, P., Grando, L., Kiyama, S., Rizzolo, A., Sakakita, H., Tollin, M., Valisa, M.

“…The megawatt-level TPE-RX neutral beam injector is planned to be installed on the RFX-mod reversed field pinch (RFP) experiment. To properly integrate the…”
Get full text

Integration design of TPE-RX Neutral Beam Injector on RFX-mod by Dal Bello, S., Ferro, A., Gallo, A., Grando, L., Pilan, N., Rizzolo, A., Taliercio, C., Valisa, M., Agostinetti, P., Bettini, P., Lazzaro, G., Tiso, A., Tollin, M., Zampiva, E., Zella, D., Hirano, Y., Kiyama, S., Sakakita, H.

“…The TPE-RX Neutral Beam Injector, which provides a 25 keV positive ion beam energy with a maximum current of 50 A for a pulse duration of 30 ms, will be…”
Get full text

Plasma-wall interaction and locked modes in the toroidal pinch experiment TPE-RX reversed-field pinch by PASQUALINI, D, KOGUCHI, H, SPIZZO, G, YAGI, Y, HIRANO, Y, MARTIN, P, SAKAKITA, H

“…The MHD instabilities that sustain the reversed-field pinch (RFP) configuration tend to phase-lock together and also to wall-lock, forming a bulging of the…”
Get full text

Thermal wall load control using fast gas puffing in the TPE-RX reversed-field pinch by Sakakita, H., Yagi, Y., Koguchi, H., Hirano, Y., Shimada, T.

“…In order to reduce the thermal wall load due to the phase- and wall-locked modes particularly in the high plasma current regime, neutral gas puffing…”
Get full text

Start-up assist by magnetized plasma flow injection in TPE-RX reversed-field pinch by Asai, T., Nagata, M., Koguchi, H., Hirano, Y., Sakakita, H., Yambe, K., Kiyama, S.

“…A reversed-field pinch (RFP) start-up assisted by a magnetized plasma flow injection was demonstrated for the first time on a TPE-RX machine. This sequence of…”
Get full text

First application of a TES microcalorimeter to a thermonuclear fusion plasma experiment by Shinozaki, K., Hoshino, A., Ishisaki, Y., Morita, U., Ohashi, T., Mihara, T., Mitsuda, K., Tanaka, K., Yagi, Y., Koguchi, H., Hirano, Y., Sakakita, H.

“…We report the first application of a superconductive transition edge sensor (TES) microcalorimeter to a thermonuclear fusion plasma experiment in the toroidal…”
Get full text

Measurement of thermal wall-load distribution caused by the locked mode in a reversed-field pinch plasma by Yagi, Y., Sekine, S., Koguchi, H., Bolzonella, T., Sakakita, H.

“…Spatially localized heat flux due to the locked mode in a reversed-field pinch device, TPE-RX, is investigated by using a multipoint vessel temperature…”
Get full text

Design concept and confinement prediction of TPE-RX reversed-field pinch device by Yagi, Y., Sekine, S., Sakakita, H., Koguchi, H., Hayase, K., Hirano, Y., Hirota, I., Kiyama, S., Maejima, Y., Sato, Y., Shimada, T., Sugisaki, K.

“…TPE-RX is a large-sized reversed-field pinch machine newly constructed at the Electrotechnical Laboratory. In this paper the design concepts, procedures to…”
Get full text

Front-end system of the TPE-RX reversed-field pinch machine by Yagi, Y., Sekine, S., Shimada, T., Masiello, A., Hayase, K., Hirano, Y., Hirota, I., Kiyama, S., Koguchi, H., Maejima, Y., Sakakita, H., Sato, Y., Sugisaki, K., Hasegawa, M., Yamane, M., Sato, F., Oyabu, I., Kuno, K., Minato, T., Kiryu, A., Takagi, S., Sako, K., Kudough, F., Urata, K., Kaguchi, H., Orita, J., Sago, H., Ishigami, Y.

“…Key design points of the front-end system of TPE-RX reversed-field pinch (RFP) machine are described. Here the front-end system is the components of the…”
Get full text

Extensive magnetic measurement system for TPE-RX by Yagi, Y., Sakakita, H., Sekine, S., Koguchi, H., Kiyama, S., Osakabe, T.

“…An extensive magnetic measurement system (MMS) which contains 1201 sensors is developed for the new large reversed-field pinch machine, TPE-RX. The system…”
Get full text

Multipoint vessel-temperature monitoring system for TPE-RX by Yagi, Y, Sakakita, H, Koguchi, H, Sekine, S

“…A multipoint, vessel-temperature monitoring system is developed for a large reversed-field pinch machine, the TPE-RX at the Electrotechnical Laboratory. It…”
Get full text

Increase in galectin expression in healing wounded skin treated with low-temperature plasma: Comparison with treatment by electronical coagulation by Akimoto, Y., Ikehara, S., Yamaguchi, T., Kim, J., Kawakami, H., Shimizu, N., Hori, M., Sakakita, H., Ikehara, Y.

“…Low-temperature plasma is useful for the care of wounded skin. It accelerates wound healing. However, the mechanism of this effect has not been fully…”
Get full text

Dependence of Plasma Plume Formation on Applied Voltage Waveform in Atmospheric-Pressure Plasma by Yambe, Kiyoyuki, Konda, Kohmei, Ogura, Kazuo, Sakakita, Hajime

“…We have studied an atmospheric-pressure plasma generated using a quartz tube, helium gas, and a copper foil electrode by the application of a radio-frequency…”
Get full text

Fast charge exchange spectroscopy using a Fabry-Perot spectrometer in the JIPP TII-U tokamak by Ida, K, Xu, J, Sato, K.N, Sakakita, H

“…A new charge exchange spectroscopic technique using a Fabry-Port spectrometer has been developed to increase the photon flux at the detector, and to improve…”
Get full text

Design of equilibrium field control coil system of TPE-RX by Sato, F, Hasegawa, M, Yamane, M, Oyabu, I, Urata, K, Kudough, F, Minato, T, Kiryu, A, Takagi, S, Kuno, K, Hirano, Y, Yagi, Y, Shimada, T, Sekine, S, Sakakita, H, Koguchi, H

“…A design and related studies of equilibrium field control coil system of TPE-RX reversed field pinch (RFP) machine are described. Here the equilibrium field…”
Get full text

Structural design and manufacturing of TPE-RX vacuum vessel by Sago, H, Orita, J, Kaguchi, H, Ishigami, Y, Urata, K, Kudough, F, Hasegawa, M, Oyabu, I, Yagi, Y, Sekine, S, Shimada, T, Hirano, Y, Sakakita, H, Koguchi, H

“…TPE-RX is a newly constructed, large-sized reversed field pinch (RFP) machine installed at the Electrotechnical Laboratory of the Ministry of International…”
Get full text