Abstract Details

Presentation:submitted:by:
griffoneill.pdf2006-03-21 18:24:00R. O'Neill

Overview of Diagnostics on the HIT-SI Spheromak

Author: R. G. O'Neill
Submitted: 2005-12-21 12:26:48

Co-authors: R.J.Smith, A.J.Redd, P.E.Sieck, W.T.Hamp, G.L.Sutphin, J.S.Wrobel, C.Akcay, T.R.Jarboe

Contact Info:
University of Washington
AERB rm. 120 box 352250
Seattle, WA   98195-2
USA

Abstract Text:
The HIT-SI device is a spheromak which uses Steady Inductive Helicity Injection (SIHI) for current drive. An objective of the HIT-SI program is to understand the magnetic relaxation and reconnection associated with forming an axisymmetric spheromak object using non-axisymmetric inductive helicity injection. This requires a comprehensive diagnostic set. The diagnostic compliment on HIT-SI includes: Magnetic diagnostics consisting of 96 surface mounted 3d probes, 20 toroidal flux loops, a retractable midplane internal magnetic probe and an injector magnetic probe array; a multi-point Thomson scattering system; a scannable tangentially viewing FIR interferometer; emission diagnostics consisting of a 16-channel ion Doppler spectrometer, SPRED, bolometry, H-alpha, HXR detectors, Zeff detector, and dual symmetrically-viewing VUV spectrometers. Diagnostics under development include a midplane Langmuir probing array, an injector Langmuir probe, a multi-chord SXR camera, and a microwave interferometer/polarimeter.

Characterization: A1,A3

Comments:

The University of Texas at Austin

Innovative Confinement Concepts Workshop
February 13-16, 2006
Austin, Texas

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