Anisotropic electron temperature measurements without knowing the spectral transmissivity for a JT-60SA Thomson scattering diagnostic

H Tojo; T Hatae; E Yatsuka; K Itami

doi:10.1063/1.4745214

Anisotropic electron temperature measurements without knowing the spectral transmissivity for a JT-60SA Thomson scattering diagnostic

Rev Sci Instrum. 2012 Oct;83(10):10E346. doi: 10.1063/1.4745214.

Authors

H Tojo¹, T Hatae, E Yatsuka, K Itami

Affiliation

¹ Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Japan. tojo.hiroshi@jaea.go.jp

PMID: 23127003
DOI: 10.1063/1.4745214

Abstract

This paper focuses on a method for measuring the electron temperature (T(e)) without knowing the transmissivity using Thomson scattering diagnostic with a double-pass scattering system. Application of this method for measuring the anisotropic T(e), i.e., the T(e) in the directions parallel (T(eparallel)) and perpendicular (T(eperpendicular)) to the magnetic field, is proposed. Simulations based on the designed parameters for a JT-60SA indicate the feasibility of the measurements except in certain T(e) ranges, e.g., T(eparallel) ~ 3.5T(eperpendicular) at 120° of the scattering angle.