[Table of Contents]

Plasma and Fusion Research

Volume 8, 2402128 (2013)

Regular Articles

Design of Lost Fast-Ion Probe Based on Thin Faraday Films in Heliotron J
Kunihiro OGAWA1), Satoshi YAMAMOTO2), Takumi SANO3), Yusuke NAKAYAMA3), Mitsutaka ISOBE1,4) and Douglass S. DARROW5)
1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
2)
Institute of Advanced Energy, Kyoto University, Gokasho, Uji 611-0011, Japan
3)
Graduate School of Energy Science, Kyoto University, Gokasho, Uji 611-0011, Japan
4)
The Graduate University for Advanced Studies (SOKENDAI), Toki, 509-5292, Japan
5)
Princeton Plasma Physics Laboratory, Princeton, NJ 08543, the United State
(Received 13 December 2012 / Accepted 3 August 2013 / Published 26 September 2013)

Abstract

A lost fast-ion probe based on thin Faraday films (FLIP) is designed to measure fast-ion losses caused by fast-ion-driven MHD modes as well as magnetic field ripples in Heliotron J. The FLIP works as a magnetic spectrometer providing the energy and pitch angle of lost fast-ions. The installation location of FLIP is studied using Lorentz orbit code. Upper port of Heliotron J at the corner section is a primary target to install the FLIP, because not only co-going fast ions but also counter-going fast ions will be detected at this position. The FLIP will give the decisive information to study fast-ion losses in Heliotron J.

Keywords

lost fast-ion probe, fast ion, faraday film, orbit calculation

DOI: 10.1585/pfr.8.2402128

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This paper may be cited as follows:

Kunihiro OGAWA, Satoshi YAMAMOTO, Takumi SANO, Yusuke NAKAYAMA, Mitsutaka ISOBE and Douglass S. DARROW, Plasma Fusion Res. 8, 2402128 (2013).