Plasma and Fusion Research

Volume 14, 3402116 (2019)

Regular Articles

Soft X-Ray Measurement on the Collisional Merging Process in a Field-Reversed Configuration
Junichi SEKIGUCHI, Tomohiko ASAI and Tsutomu TAKAHASHI
College of Science and Technology, Nihon University, Tokyo 101-8308, Japan
(Received 10 January 2019 / Accepted 7 May 2019 / Published 11 July 2019)

Abstract

To investigate excited shockwaves in a collisional-merging field-reversed configuration (FRC), soft X-ray (SXR) measurement was initiated on the FRC amplification via translation collisional merging (FAT-CM) instrument. Since the FRCs collide at a relative speed of 300 - 400 km/s on the FAT-CM, which is faster than the Alfvén velocity in the separatrix, shockwaves are assumed to be excited in the colliding FRCs. These excited shockwaves would play an important role in energy conversion during the collisional merging formation process of the FRC. The relation between the global behavior of the FRC in the collisional merging process and the time evolution of SXR signals are discussed herein.

Keywords

field-reversed configuration, shockwave, collisional merging, super-Alfvénic translation

DOI: 10.1585/pfr.14.3402116

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