Prototype high resolution multienergy soft x-ray array for NSTX

Tritz, K; Stutman, D; Finkenthal, M; Delgado-Aparicio, L; Kaita, R; Roquemore, L

doi:10.1063/1.3460632

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Prototype high resolution multienergy soft x-ray array for NSTX

Tritz, K·Stutman, D·Finkenthal, M·Delgado-Aparicio, L·Kaita, R·Roquemore, L

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Abstract

A novel diagnostic design seeks to enhance the capability of multienergy soft x-ray (SXR) detection by using an image intensifier to amplify the signals from a larger set of filtered x-ray profiles. The increased number of profiles and simplified detection system provides a compact diagnostic device for measuring T{sub e} in addition to contributions from density and impurities. A single-energy prototype system has been implemented on NSTX, comprised of a filtered x-ray pinhole camera, which converts the x-rays to visible light using a CsI:Tl phosphor. SXR profiles have been measured in high performance plasmas at frame rates of up to 10 kHz, and comparisons to the toroidally displaced tangential multi-energy SXR have been made.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY 70 PLASMA PHYSICS AND FUSION TECHNOLOGY CAMERAS ELECTRON TEMPERATURE ENERGY RESOLUTION IMAGE INTENSIFIERS KHZ RANGE NSTX DEVICE PERFORMANCE PHOSPHORS PLASMA PLASMA DIAGNOSTICS PLASMA IMPURITIES SOFT X RADIATION SOLID SCINTILLATION DETECTORS VISIBLE RADIATION X-RAY DETECTION

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Tritz, K, Stutman, D, Finkenthal, M, Delgado-Aparicio, L, Kaita, R, Roquemore, L. 2010-10-15. Prototype high resolution multienergy soft x-ray array for NSTX. https://doi.org/10.1063/1.3460632

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