October 2016

Conference Paper

Tracer-Encapsulated Solid Pellet (TESPEL) Injection System for the TJ-II Stellarator

By:
Tamura, N.; McCarthy, K. J.; Hayashi, H.; Combs, Stephen K; Foust, Charles R; Garcia, R.; Panadero, N.; Pawelec, E.; Sanchez, J.; Navarro, M.; Soleto, A.
Journal Name:
Review of Scientific Instruments
Page Number:
001
Volume:
87
Issue Number:
11
Publication Date:
October 2016
Conference Name:
21st Topical Conference on High Temperature Diagnostics (HTPD 2016)
Conference Location:
Madison, Wisconsin, United States of America
View DOI Listing:
https://doi.org/10.1063/1.4962303

Abstract

A tracer-encapsulated solid pellet (TESPEL) injection system for the TJ-II stellarator was recently developed. In order to reduce the time and cost for the development, we combined a TESPEL injector provided by National Institute for Fusion Science with an existing TJ-II cryogenic pellet injection system. Consequently, the TESPEL injection into the TJ-II plasma was successfully achieved, which was confirmed by several pellet diagnostics including a normal-incidence spectrometer for monitoring a tracer impurity behavior.