Improved spheromak operation with reduced fluctuations in SSPX

Author

Hill, D.N. ; Holcomb, C. ; Hooper ; McLean, H. ; Romero-Talamas, C. ; Stallard ; Wood, R.D. ; Woodruff, S.

Author_Institution

Lawrence Livermore Nat. Lab., CA, USA

fYear

2003

fDate

5-5 June 2003

Firstpage

332

Abstract

Summary form only given, as follows. We will report recent results from the Sustained Spheromak Physics Experiment (SSPX) in which we measure peak electron temperatures greater than 300eV in driven spheromak discharges. The SSPX spheromak plasma (0.31m major radius, 0.13m minor radius) is driven for up to 4msec by a DC coaxial source (a Marshall gun), which is powered by a 2MJ capacitor bank. The plasma is contained inside a tungsten-coated copper flux conserver which maintains stability against global tilting modes.

Keywords

plasma confinement; plasma density; plasma fluctuations; plasma magnetohydrodynamics; plasma temperature; DC coaxial source; MHD equilibrium current profile; Marshall gun; Sustained Spheromak Physics Experiment; Thomson scattering; edge magnetic field; ejection threshold; getter; glow discharge cleaning; gun current; high temperature bake; improved spheromak operation; magnetic fluctuations; peak electron temperatures; plasma density; plasma scrubbing; plasma temperature; reduced fluctuations; voltage fluctuations; Coaxial components; Electrons; Fault location; Fluctuations; Physics; Plasma measurements; Plasma sources; Plasma stability; Plasma temperature; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on

Conference_Location

Jeju, South Korea

ISSN

0730-9244

Print_ISBN

0-7803-7911-X

Type

conf

DOI

10.1109/PLASMA.2003.1228926

Filename

1228926