Bulletin of the American Physical Society
49th Annual Meeting of the Division of Plasma Physics
Volume 52, Number 11
Monday–Friday, November 12–16, 2007; Orlando, Florida
Session CP8: Poster Session II: Reconnection and Non-Neutral I; Spheromaks and MCX; MFC Diagnostics; Simulation: Algorithm; Simulation: Kinetic/Edge
Monday, November 12, 2007
Rosen Centre Hotel Room: Grand Ballroom, 2:00pm - 5:00pm
Abstract ID: BAPS.2007.DPP.CP8.46
Abstract: CP8.00046 : Correlation of Soft X-ray Emission with Thompson Scattering Measurements of Electron Temperature in SSPX*
Preview Abstract Abstract
In an effort to measure time-resolved changes in the plasma temperature over the 100 -- 300 eV range, soft X-ray photodiodes have been installed in SSPX. Two sensors with different quantum efficiency versus frequency distributions are aligned along a common chord tangent to the magnetic axis of the plasma. Analysis of the ratio of the two signals offers time-resolved insight into Bremsstrahlung soft X-ray emissions, which are a function of the chord integrated electron temperature. Results of a numerical model for the soft X-ray ratio are compared to experimental measurements. Correlation of the temperature data from these sensors to the diagnostic data taken from a Thomson scattering apparatus will be presented.
*Work performed under the auspices of the US DOE by University of California Lawrence Livermore National Laboratory under contract W-7405-ENG-48.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.DPP.CP8.46
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