Advanced Plasma Energy Research Section

概要

The current subjects of this research section are to study the properties of high-temperature plasmas in order to control and improve the plasma energy con- fmement from the physical viewpoint of nuclear fu- sion research. The experimental and theoretical inves- tigations for optimizing the helical-axis heliotron con- figuration are in progress under the collaboration with other groups of the international/national institutes and groups of other universities under the auspices of the Collaboration Program of the Lab. Complex En- ergy Processes, IAE, and the Collaborative Research Program of NIFS(National Institute for Fusion Sci- ence).

In this report , a remarkable result obtained in the Heliotron J experimental study in FY2020 is reported focusing on transport characteristics regarding mag- netic configurations, including the magnetic island ef- fect , especially in (1) characteristics of edge plasmas inside the magnetic island, (2) measurement of radial electric field and its dependence on rotational trans- form profile and (3) development of beam emission spectroscopy for turbulent fluctuation measurement.

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