Search Results - "Shinohara, Kouji"
-
1
Simulations tackle abrupt massive migrations of energetic beam ions in a tokamak plasma
Published in Nature communications (16-08-2018)“…In the late 1990s, fusion scientists at the Japanese tokamak JT-60U discovered abrupt large-amplitude events during beam-driven deuterium plasma experiments. A…”
Get full text
Journal Article -
2
Evolution of a laser wake cavity in a MCF plasma
Published in Scientific reports (13-11-2024)“…A laser pulse focused to relativistic intensity inside a magnetically confined fusion (MCF) plasma plows away all electrons in its path. The ensuing Coulomb…”
Get full text
Journal Article -
3
Alfvén acoustic channel for ion energy in high-beta tokamak plasmas
Published in Physical review letters (09-01-2015)“…When the plasma beta (ratio of thermal to magnetic pressure) in the core of a tokamak is raised to values of several percent, as required for a thermonuclear…”
Get full text
Journal Article -
4
High-quality GaN epitaxial layer grown by metalorganic vapor phase epitaxy on (111) MgAl2O4 substrate
Published in Applied physics letters (23-10-1995)“…We grew GaN crystals by metalorganic vapor phase epitaxy on (111) and (100) MgAl2O4 substrates. We obtained a single-crystal GaN layer with a specular surface…”
Get full text
Journal Article -
5
A new method to analyze density fluctuation by microwave reflectometry
Published in Japanese Journal of Applied Physics (01-12-1997)Get full text
Journal Article -
6
-
7
Possibility study of the partial neutron calibration for neutron flux monitors in torus devices
Published in Fusion engineering and design (01-09-2019)“…•The possibility of the partial neutron calibration has been investigated from the experiences on LHD and JT-60U.•A partial calibration combined with…”
Get full text
Journal Article -
8
Comparison of Dispersion Model of Magneto-Acoustic Cyclotron Instability with Experimental Observation of 3He Ion Cyclotron Emission on JT-60U
Published in Journal of the Physical Society of Japan (15-12-2017)“…The Magneto-acoustic Cyclotron Instability (MCI) is a possible emission mechanism for Ion Cyclotron Emissions (ICEs). A dispersion model of the MCI driven by a…”
Get full text
Journal Article -
9
Testing the conservative character of particle simulations: II. Spurious heating of guiding centers and full orbits subject to fluctuations expressed in terms of ${\bf E}$ and ${\bf B}
Published 28-06-2022“…Phys. Plasmas 29, 113906 (2022) For an axisymmetric tokamak plasma, Hamiltonian theory predicts that the orbits of charged particles must stay on invariant…”
Get full text
Journal Article -
10
Thermal conductivity of ribbonlike carbon films
Published in Japanese Journal of Applied Physics (1995)“…The thermal conductivity parallel to the surface of a ribbonlike carbon film (RCF) treated at various heat-treatment temperatures (HTTs) was obtained from ac…”
Get full text
Journal Article -
11
Continuous operation over 1500 h of a PbTe/PbSnTe double-heterostructure laser at 77 K
Published in Applied physics letters (15-11-1977)“…Continuous operation over 1500 h at 77 K has been achieved by use of a PbTe/Pb0.93Sn0.07Te double-heterostructure laser which was grown using the…”
Get full text
Journal Article -
12
Energy-selective confinement of fusion-born alpha particles during internal relaxations in a tokamak plasma
Published 12-01-2022“…Nature Communications 13 (2022) 3941 Long-pulse operation of a self-sustained fusion reactor using toroidal magnetic containment requires control over the…”
Get full text
Journal Article -
13
A Double or Triple Module Redundancy Model Exploiting Dynamic Reconfigurations
Published in 2008 NASA/ESA Conference on Adaptive Hardware and Systems (01-06-2008)“…Majority voting is a commonly used approach to increase system reliability. Standard triple-module-redundancy (TMR) methods are frequently used in space…”
Get full text
Conference Proceeding -
14
Defect tolerance of holographic configurations in ORGAs
Published in 2008 IEEE International Symposium on Parallel and Distributed Processing (01-04-2008)“…Optically reconfigurable gate arrays (ORGAs) have been developed as a type of multi-context field programmable gate array to realize fast reconfiguration and…”
Get full text
Conference Proceeding