Yasunori Kawano

TL;DR: The generalized model of the rotating waveplate Stokes polarimeter and the algorithm suitable for real-time field-programmable gate array (FPGA) processing were proposed and it was concluded that measurement error will be reduced by a factor of nine.

TL;DR: In this article, the authors emphasized the significance of real-time feedback control as an indispensable method to improve and sustain the improved plasma characteristics in JT-60U high fusion performance discharges as well as operate the fusion reactor under the optimal divertor conditions with respect to the heat load and exhaust pumping.

TL;DR: In this article, a very high resolution phase comparator (VRPC) was developed to improve the phase and density resolutions of a dual CO2 laser interferometer in JT-60U tokamak.

TL;DR: In this paper, the authors investigated the behavior of the heat flux to the JT-60 divertor in the lower hybrid range of frequency (LHRF) heated and neutral beam heated discharges from the view point of the plasma wall interaction by using an IRTV camera.

TL;DR: A prototype instrumentation and control (I&C) system for the ITER divertor thermocouples system is successfully developed and validated, and will be applied to other ITER diagnostic systems procured by JADA.