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Title: Final Report Sustained Spheromak Physics Project FY 1997 - FY 1999

Abstract

This is the final report on the LDRD SI-funded Sustained Spheromak Physics Project for the years FY1997-FY1999, during which the SSPX spheromak was designed, built, and commissioned for operation at LLNL. The specific LDRD project covered in this report concerns the development, installation, and operation of specialized hardware and diagnostics for use on the SSPX facility in order to study energy confinement in a sustained spheromak plasma configuration. The USDOE Office of Fusion Energy Science funded the construction and routine operation of the SSPX facility. The main distinctive feature of the spheromak is that currents in the plasma itself produce the confining toroidal magnetic field, rather than external coils, which necessarily thread the vacuum vessel. There main objective of the Sustained Spheromak Physics Project was to test whether sufficient energy confinement could be maintained in a spheromak plasma sustained by DC helicity injection. Achieving central electron temperatures of several hundred eV would indicate this. In addition, we set out to determine how the energy confinement scales with T{sub c} and to relate the confinement time to the level of internal magnetic turbulence. Energy confinement and its scaling are the central technical issues for the spheromak as a fusion reactor concept.more » Pending the outcome of energy confinement studies now under way, the spheromak could be the basis for an attractive fusion reactor because of its compact size, simply-connected magnetic geometry, and potential for steady-state current drive.« less

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
793450
Report Number(s):
UCRL-ID-137784
TRN: US0205239
DOE Contract Number:  
W-7405-Eng-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 29 Feb 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CONFIGURATION; CONFINEMENT; CONFINEMENT TIME; CONSTRUCTION; ELECTRON TEMPERATURE; GEOMETRY; HELICITY; MAGNETIC FIELDS; PHYSICS; PLASMA; THERMONUCLEAR REACTORS; TURBULENCE

Citation Formats

Hooper, E B, and Hill, D N. Final Report Sustained Spheromak Physics Project FY 1997 - FY 1999. United States: N. p., 2000. Web. doi:10.2172/793450.
Hooper, E B, & Hill, D N. Final Report Sustained Spheromak Physics Project FY 1997 - FY 1999. United States. doi:10.2172/793450.
Hooper, E B, and Hill, D N. Tue . "Final Report Sustained Spheromak Physics Project FY 1997 - FY 1999". United States. doi:10.2172/793450. https://www.osti.gov/servlets/purl/793450.
@article{osti_793450,
title = {Final Report Sustained Spheromak Physics Project FY 1997 - FY 1999},
author = {Hooper, E B and Hill, D N},
abstractNote = {This is the final report on the LDRD SI-funded Sustained Spheromak Physics Project for the years FY1997-FY1999, during which the SSPX spheromak was designed, built, and commissioned for operation at LLNL. The specific LDRD project covered in this report concerns the development, installation, and operation of specialized hardware and diagnostics for use on the SSPX facility in order to study energy confinement in a sustained spheromak plasma configuration. The USDOE Office of Fusion Energy Science funded the construction and routine operation of the SSPX facility. The main distinctive feature of the spheromak is that currents in the plasma itself produce the confining toroidal magnetic field, rather than external coils, which necessarily thread the vacuum vessel. There main objective of the Sustained Spheromak Physics Project was to test whether sufficient energy confinement could be maintained in a spheromak plasma sustained by DC helicity injection. Achieving central electron temperatures of several hundred eV would indicate this. In addition, we set out to determine how the energy confinement scales with T{sub c} and to relate the confinement time to the level of internal magnetic turbulence. Energy confinement and its scaling are the central technical issues for the spheromak as a fusion reactor concept. Pending the outcome of energy confinement studies now under way, the spheromak could be the basis for an attractive fusion reactor because of its compact size, simply-connected magnetic geometry, and potential for steady-state current drive.},
doi = {10.2172/793450},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 29 00:00:00 EST 2000},
month = {Tue Feb 29 00:00:00 EST 2000}
}

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