Development of the Ultrasoft X-Ray Diagnostic for Impurity Transport Studies with a Tracer-Encapsulated Solid Pellet Injection on LHD

Development of the Ultrasoft X-Ray Diagnostic for Impurity Transport Studies with a Tracer-Encapsulated Solid Pellet Injection on LHD

A prototype ultrasoft X-ray polychromator for impurity transport studies using a tracer-encapsulated solid pellet (TESPEL) has been recently developed at Johns Hopkins University and tested on the Large Helical Device. The system has high throughput with good spatial (a few cm) and spectral (0.1˜0.2...

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Veröffentlicht in:Journal of Plasma and Fusion Research 2004, Vol.80(7), pp.545-546
Hauptverfasser: KALININA, Diana, SUDO, Shigeru, STUTMAN, Dan, FINKENTHAL, Michael, TAMURA, Naoki, SATO, Kuninori, MATSUBARA, Akihiro, Group, LHD Experimental
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CXRS
multilayer mirror
TESPEL
ultrasoft X-ray polychromator
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container_end_page 546
container_issue 7
container_start_page 545
container_title Journal of Plasma and Fusion Research
container_volume 80
creator KALININA, Diana
SUDO, Shigeru
STUTMAN, Dan
FINKENTHAL, Michael
TAMURA, Naoki
SATO, Kuninori
MATSUBARA, Akihiro
Group, LHD Experimental
description A prototype ultrasoft X-ray polychromator for impurity transport studies using a tracer-encapsulated solid pellet (TESPEL) has been recently developed at Johns Hopkins University and tested on the Large Helical Device. The system has high throughput with good spatial (a few cm) and spectral (0.1˜0.2 nm) resolution and millisecond time response for measuring faint charge-exchange recombination emissions from the fully stripped low-Z tracer impurity. The signals from the magnesium tracer deposited locally by TESPEL injection have been successfully obtained with the prototype polychromator.
doi_str_mv 10.1585/jspf.80.545
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subjects CXRS
multilayer mirror
TESPEL
ultrasoft X-ray polychromator
title Development of the Ultrasoft X-Ray Diagnostic for Impurity Transport Studies with a Tracer-Encapsulated Solid Pellet Injection on LHD
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