SXR Continuum Radiation Transmitted Through Metallic Filters: An Analytical Approach To Fast Electron Temperature Measurements Page: 3 of 10
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SXR continuum radiation transmitted through metallic filters: An
analytical approach to fast electron temperature measurements*
L. Delgado-Aparicio't$ K. Tritz2, T. Kramer2, D. Stutman2,
M. Finkenthal2, K. Hill' and M. Bitter'
1 Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
2 The Johns Hopkins University, Baltimore, Maryland 21218, USA
June 3, 2010
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.*Contributed paper published as part of the Proceedings of
Diagnostics, Wildwood, New Jersey, May, 2010.
tldelgado@pppl.gov
tOn assignment at the Massachusetts Institute of Technologythe 18th Topical Conference on High-Temperature Plasma
- Plasma Science Fusion Center.1
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Delgado-Aparicio, L.; Tritz, K.; Kramer, T.; Stutman, D.; Finkentha, M.; Hill, K. et al. SXR Continuum Radiation Transmitted Through Metallic Filters: An Analytical Approach To Fast Electron Temperature Measurements, report, August 26, 2010; Princeton, New Jersey. (https://digital.library.unt.edu/ark:/67531/metadc1012137/m1/3/: accessed April 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.