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icc_poster_final.pdf2011-08-26 17:40:03Michael Ross
mross_icc_final.pdf2011-08-26 17:22:41Michael Ross

Design of a digital holographic interferometer for the ZaP Flow Z-pinch

Author: Michael P Ross
Requested Type: Poster Only
Submitted: 2011-06-10 18:11:39

Co-authors: U. Shumlak, B.A. Nelson, R.P. Golingo, S.D. Knecht, M.C. Hughes, R.J. Oberto

Contact Info:
University of Washington
AERB, Rm 120
Seattle, WA   98195
United States

Abstract Text:
The ZaP Flow Z-Pinch experiment at the University of Washington investigates the use of sheared axial flow to stabilize a Z-pinch plasma. A variety of diagnostics characterize the plasma. In the past, holographic interferometry (HI) has measured radial electron density profiles at a fixed axial location. As the ZaP experiment prepares to re-focus itself as a high energy density plasma experiment, a redesign of the HI system is underway. The existing HI system relies on holographic film to record interferograms to measure density profiles. The use of film mandates time-consuming development and reconstruction procedures. The new digital HI system will employ a CCD camera and numerical reconstruction techniques to eliminate physical post-processing, providing operators with electron density data between each plasma pulse. Additionally, a new traverser system will allow operators to easily change the axial measurement location. The ability to rotate the HI's interference fringes will allow the measurement of either axial or radial profiles of the density. Preliminary designs and plans will be presented.

Characterization: A2

Please place posters from first authors M.C. Hughes, R.P. Golingo, and M.P. Ross together in the following order:
1. M.C. Hughes
2. R.P. Golingo
3. M.P. Ross

University of Washington

Workshop on Innovation in Fusion Science (ICC2011) and
US-Japan Workshop on Compact Torus Plasma
August 16-19, 2011
Seattle, Washington

ICC 2011