[Table of Contents]

Plasma and Fusion Research

Volume 1, 054 (2006)

Rapid Communications

Thomson Scattering Measurements of Helium Recombining Plasmas in the Divertor Simulator MAP-II
Filippo SCOTTI, Shinichiro KADO1), Atsushi OKAMOTO2), Taiichi SHIKAMA and Satoru TANAKA
School of Engineering, The University of Tokyo
1)
High Temperature Plasma Center, The University of Tokyo
2)
School of Engineering, Tohoku University
(Received 29 August 2006 / Accepted 27 September 2006 / Published 6 December 2006)

Abstract

Laser Thomson Scattering (LTS) measurements of Electron Ion Recombining (EIR) Helium plasma were performed in the divertor/edge simulator MAP-II. Upgrades of our LTS system, in the stray-light level and in the notch filter, allowed the measurement of electron temperatures as low as 0.1 eV and further investigation of EIR processes. Electron temperature and electron density profiles of EIR He recombining plasmas with different background neutral pressures have been measured.

Keywords

Thomson scattering, divertor, detached plasma, recombining plasma, electron ion recombination (EIR) processes

DOI: 10.1585/pfr.1.054

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This paper may be cited as follows:

Filippo SCOTTI, Shinichiro KADO, Atsushi OKAMOTO, Taiichi SHIKAMA and Satoru TANAKA, Plasma Fusion Res. 1, 054 (2006).