SXR Continuum Radiation Transmitted Through Metallic Filters: An Analytical Approach To Fast Electron Temperature Measurements
Authors: L. Delgado-Aparicio, K. Tritz, T. Kramer, D. Stutman, M. Finkenthal, K. Hill and M. Bitter
Abstract:
A new set of analytic formulae describes the transmission of soft X-ray (SXR) continuum radiation through a metallic foil for its application to fast electron temperature measurements in fusion plasmas. This novel approach shows good agreement with numerical calculations over a wide range of plasma temperatures in contrast with the solutions obtained when using a transmission approximated by a single-Heaviside function [S. von Goeler, Rev. Sci. Instrum., 20, 599, (1999)]. The new analytic formulae can improve the interpretation of the experimental results and thus contribute in obtaining fast teperature measurements in between intermittent Thomson Scattering data.
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Submitted to: Review of Scientific Instruments (May, 2010)
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Download PPPL-4543 (pdf 630 KB 6 pp)
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