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Title: Be Foil "Filter Knee Imaging" NSTX Plasma with Fast Soft X-ray Camera

Abstract

A fast soft x-ray (SXR) pinhole camera has been implemented on the National Spherical Torus Experiment (NSTX). This paper presents observations and describes the Be foil Filter Knee Imaging (FKI) technique for reconstructions of a m/n=1/1 mode on NSTX. The SXR camera has a wide-angle (28{sup o}) field of view of the plasma. The camera images nearly the entire diameter of the plasma and a comparable region in the vertical direction. SXR photons pass through a beryllium foil and are imaged by a pinhole onto a P47 scintillator deposited on a fiber optic faceplate. An electrostatic image intensifier demagnifies the visible image by 6:1 to match it to the size of the charge-coupled device (CCD) chip. A pair of lenses couples the image to the CCD chip.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
842399
Report Number(s):
PPPL-4093
TRN: US0503268
DOE Contract Number:  
AC20-76CH0373
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BERYLLIUM; CAMERAS; CHARGE-COUPLED DEVICES; ELECTROSTATICS; FIBER OPTICS; IMAGE INTENSIFIERS; LENSES; PHOSPHORS; PHOTONS; PLASMA; MHD Instability; X-rays, Soft; Image Reconstruction

Citation Formats

B.C. Stratton, S. von Goeler, D. Stutman, K. Tritz, and L.E. Zakharov. Be Foil "Filter Knee Imaging" NSTX Plasma with Fast Soft X-ray Camera. United States: N. p., 2005. Web. doi:10.2172/842399.
B.C. Stratton, S. von Goeler, D. Stutman, K. Tritz, & L.E. Zakharov. Be Foil "Filter Knee Imaging" NSTX Plasma with Fast Soft X-ray Camera. United States. doi:10.2172/842399.
B.C. Stratton, S. von Goeler, D. Stutman, K. Tritz, and L.E. Zakharov. Mon . "Be Foil "Filter Knee Imaging" NSTX Plasma with Fast Soft X-ray Camera". United States. doi:10.2172/842399. https://www.osti.gov/servlets/purl/842399.
@article{osti_842399,
title = {Be Foil "Filter Knee Imaging" NSTX Plasma with Fast Soft X-ray Camera},
author = {B.C. Stratton and S. von Goeler and D. Stutman and K. Tritz and L.E. Zakharov},
abstractNote = {A fast soft x-ray (SXR) pinhole camera has been implemented on the National Spherical Torus Experiment (NSTX). This paper presents observations and describes the Be foil Filter Knee Imaging (FKI) technique for reconstructions of a m/n=1/1 mode on NSTX. The SXR camera has a wide-angle (28{sup o}) field of view of the plasma. The camera images nearly the entire diameter of the plasma and a comparable region in the vertical direction. SXR photons pass through a beryllium foil and are imaged by a pinhole onto a P47 scintillator deposited on a fiber optic faceplate. An electrostatic image intensifier demagnifies the visible image by 6:1 to match it to the size of the charge-coupled device (CCD) chip. A pair of lenses couples the image to the CCD chip.},
doi = {10.2172/842399},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 08 00:00:00 EDT 2005},
month = {Mon Aug 08 00:00:00 EDT 2005}
}

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