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Title: Fast Neutral Pressure Measurements in NSTX

Abstract

Several fast neutral pressure gauges have been installed on NSTX [National Spherical Torus Experiment] to measure the vessel and divertor pressure during inductive and coaxial helicity injected (CHI) plasma operations. Modified, PDX [Poloidal Divertor Experiment]-type Penning gauges have been installed on the upper and lower divertors. Neutral pressure measurements during plasma operations from these and from two shielded fast Micro ion gauges at different toroidal locations on the vessel mid-plane are described. A new unshielded ion gauge, referred to as the In-vessel Neutral Pressure (INP) gauge is under development.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
808379
Report Number(s):
PPPL-3732
TRN: US0301997
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 6 Aug 2002
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DIVERTORS; HELICITY; PLASMA; PRESSURE MEASUREMENT; DIAGNOSTICS; SPHERICAL TORUS; VACUUM

Citation Formats

R. Raman, H.W. Kugel, T. Provost, R. Gernhardt, T.R. Jarboe, and M.G. Bell. Fast Neutral Pressure Measurements in NSTX. United States: N. p., 2002. Web. doi:10.2172/808379.
R. Raman, H.W. Kugel, T. Provost, R. Gernhardt, T.R. Jarboe, & M.G. Bell. Fast Neutral Pressure Measurements in NSTX. United States. doi:10.2172/808379.
R. Raman, H.W. Kugel, T. Provost, R. Gernhardt, T.R. Jarboe, and M.G. Bell. Tue . "Fast Neutral Pressure Measurements in NSTX". United States. doi:10.2172/808379. https://www.osti.gov/servlets/purl/808379.
@article{osti_808379,
title = {Fast Neutral Pressure Measurements in NSTX},
author = {R. Raman and H.W. Kugel and T. Provost and R. Gernhardt and T.R. Jarboe and M.G. Bell},
abstractNote = {Several fast neutral pressure gauges have been installed on NSTX [National Spherical Torus Experiment] to measure the vessel and divertor pressure during inductive and coaxial helicity injected (CHI) plasma operations. Modified, PDX [Poloidal Divertor Experiment]-type Penning gauges have been installed on the upper and lower divertors. Neutral pressure measurements during plasma operations from these and from two shielded fast Micro ion gauges at different toroidal locations on the vessel mid-plane are described. A new unshielded ion gauge, referred to as the In-vessel Neutral Pressure (INP) gauge is under development.},
doi = {10.2172/808379},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 06 00:00:00 EDT 2002},
month = {Tue Aug 06 00:00:00 EDT 2002}
}

Technical Report:

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