Soft x-ray continuum radiation transmitted through metallic filters: An analytical approach to fast electron temperature measurements

L. Delgado-Aparicio*, K. Tritz, T. Kramer, D. Stutman, M. Finkenthal, K. Hill, M. Bitter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A new set of analytic formulas describes the transmission of soft x-ray 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. 70, 599 (1999)]. The new analytic formulas can improve the interpretation of the experimental results and thus contribute in obtaining fast temperature measurements in between intermittent Thomson scattering data.

Original languageEnglish
Article number10E303
JournalReview of Scientific Instruments
Volume81
Issue number10
DOIs
StatePublished - Oct 2010
Externally publishedYes

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