skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Plasma potential formation and measurement in TMX-U and MFTF-B

Abstract

Tandem mirrors control the axial variation of the plasma potential to create electrostatic plugs that improve the axial confinement of central cell ions and, in a thermal barrier tandem mirror, control the electron axial heat flow. Measurements of the spatial and temporal variations of the plasma potential are, therefore, important to the understanding of confinement in a tandem mirror. In this paper we discuss potential formation in a thermal barrier tandem mirror and examine the diagnostics and data obtained on the TMX-U device, including measurements of the thermal barrier potential profile using a diagnostic neutral beam and charged particle energy-spectroscopy. We then describe the heavy ion beam probe and other new plasma potential diagnostics that are under development for TMX-U and MFTF-B and examine problem areas where additional diagnostic development is desirable.

Authors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
OSTI Identifier:
6462260
Report Number(s):
UCRL-91506; CONF-8409157-5
ON: DE85002173
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 5. topical conference on high temperature plasma diagnostics, Lake Tahoe, NV, USA, 16 Sep 1984
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MFTF DEVICES; ELECTRIC POTENTIAL; TMX DEVICES; ATOMIC BEAMS; CHARGED PARTICLES; ELECTROSTATICS; ENERGY SPECTRA; PLASMA DIAGNOSTICS; PLUGGING; THERMAL BARRIERS; BEAMS; MAGNETIC MIRRORS; OPEN PLASMA DEVICES; SPECTRA; TANDEM MIRRORS; THERMONUCLEAR DEVICES; 700104* - Fusion Energy- Plasma Research- Plasma Kinetics-Experimental- (-1987)

Citation Formats

Grubb, D.P. Plasma potential formation and measurement in TMX-U and MFTF-B. United States: N. p., 1984. Web.
Grubb, D.P. Plasma potential formation and measurement in TMX-U and MFTF-B. United States.
Grubb, D.P. Fri . "Plasma potential formation and measurement in TMX-U and MFTF-B". United States. https://www.osti.gov/servlets/purl/6462260.
@article{osti_6462260,
title = {Plasma potential formation and measurement in TMX-U and MFTF-B},
author = {Grubb, D.P.},
abstractNote = {Tandem mirrors control the axial variation of the plasma potential to create electrostatic plugs that improve the axial confinement of central cell ions and, in a thermal barrier tandem mirror, control the electron axial heat flow. Measurements of the spatial and temporal variations of the plasma potential are, therefore, important to the understanding of confinement in a tandem mirror. In this paper we discuss potential formation in a thermal barrier tandem mirror and examine the diagnostics and data obtained on the TMX-U device, including measurements of the thermal barrier potential profile using a diagnostic neutral beam and charged particle energy-spectroscopy. We then describe the heavy ion beam probe and other new plasma potential diagnostics that are under development for TMX-U and MFTF-B and examine problem areas where additional diagnostic development is desirable.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {9}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: