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Diagnostics of ETL TPE-1 plasmas by using a He--Ne laser

Abstract

The electron density in the plasma of toroidal screw pinch device TPE-1 of the Electrotechnical Laboratory has been measured with a conventional optical interferometer of He-Ne gas laser, 6,328 A in wavelength. The minimum phase shift detectable is about 1/300 lambda, equivalent to ..integral..nsub(e)dl=1x10/sup 15/cm/sup -2/. Some problems on this measuring system are presented. As the system uses conventional components, it is easy to construct and handle and is useful for determining plasma parameters in confinement experiments. The confinement time of charged particles is measured. As a result it has been found that the particles escape from the plasma mostly in conformity with the classical diffusion.
Authors:
Maejima, Y; Sugimoto, H; Tamaru, T [1] 
  1. Electrotechnical Lab., Tanashi, Tokyo (Japan). Tanashi Branch
Publication Date:
Aug 01, 1975
Product Type:
Journal Article
Reference Number:
AIX-07-266722; ERA-02-011886; EDB-77-010236
Resource Relation:
Journal Name: Denshi Gijutsu Sogo Kenkyusho Iho; (Japan); Journal Volume: 39:8
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA DIAGNOSTICS; INTERFEROMETERS; TOROIDAL SCREW PINCH DEVICES; CONFINEMENT; CONFINEMENT TIME; ELECTRON DENSITY; GAS LASERS; MEASURING METHODS; PHASE SHIFT; PLASMA; PLASMA DENSITY; SCATTERING; CLOSED PLASMA DEVICES; LASERS; MEASURING INSTRUMENTS; PINCH DEVICES; THERMONUCLEAR DEVICES; TOROIDAL PINCH DEVICES; 700102* - Fusion Energy- Plasma Research- Diagnostics
OSTI ID:
7346563
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: DGSKA
Submitting Site:
INIS
Size:
Pages: 533-547
Announcement Date:
Nov 01, 1976

Citation Formats

Maejima, Y, Sugimoto, H, and Tamaru, T. Diagnostics of ETL TPE-1 plasmas by using a He--Ne laser. Japan: N. p., 1975. Web.
Maejima, Y, Sugimoto, H, & Tamaru, T. Diagnostics of ETL TPE-1 plasmas by using a He--Ne laser. Japan.
Maejima, Y, Sugimoto, H, and Tamaru, T. 1975. "Diagnostics of ETL TPE-1 plasmas by using a He--Ne laser." Japan.
@misc{etde_7346563,
title = {Diagnostics of ETL TPE-1 plasmas by using a He--Ne laser}
author = {Maejima, Y, Sugimoto, H, and Tamaru, T}
abstractNote = {The electron density in the plasma of toroidal screw pinch device TPE-1 of the Electrotechnical Laboratory has been measured with a conventional optical interferometer of He-Ne gas laser, 6,328 A in wavelength. The minimum phase shift detectable is about 1/300 lambda, equivalent to ..integral..nsub(e)dl=1x10/sup 15/cm/sup -2/. Some problems on this measuring system are presented. As the system uses conventional components, it is easy to construct and handle and is useful for determining plasma parameters in confinement experiments. The confinement time of charged particles is measured. As a result it has been found that the particles escape from the plasma mostly in conformity with the classical diffusion.}
journal = []
volume = {39:8}
journal type = {AC}
place = {Japan}
year = {1975}
month = {Aug}
}