NDLI: Heavy ion beam probe development

Content Provider	IEEE Xplore Digital Library
Author	Connor, K.A. Crowley, T.P. Demers, D.R. Howard, S.J. Lei, J. Schatz, J.G. Schoch, P.M. Shah, U. Si, J.
Copyright Year	2000
Description	Author affiliation: Rensselaer Polytech. Inst., Troy, NY, USA (Connor, K.A.)
Abstract	Summary form only given. We are conducting experiments with the ultimate goal of developing a non-perturbing diagnostic technique for measuring RF field and density fluctuations in fusion plasmas. In order to develop this technique, a helicon plasma with a heavy ion beam probe (HIBP) diagnostic is being constructed. The helicon plasma has a magnetic field of up to 1.5 kG produced by a set of circular coils. A 1 kW, 13.56 MHz RF generator will be used to drive helicon waves in the plasma. Diagnostic apparatus utilizes a 60 keV HIBP diagnostic beam and detector that were previously used on the Tokamak de Varenne. The detection electronics is being modified to operate at higher frequencies. Present status of the experiment as well as key issues in extending HIBP measurements to higher frequencies will be discussed. The HIBP proposed for LDX, based on the old EBT/TARA system, is intended to study convective cells in a simple magnetic dipole field, similar to that found in planetary magnetospheres. Both potential structures and the impact of flows around them as observed in fluctuation measurements can be characterized with such a system. An HIBP system has also been proposed for NSTX, based on the 500 kV TEXT HIBP. There is presently no plan for the 2 MeV TEXT Upgrade system.
File Size	118112
File Format	PDF
ISBN	0780359828
ISSN	07309244
DOI	10.1109/PLASMA.2000.854913
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ion beams Probes Plasma measurements Magnetic field measurement Plasma diagnostics Extraterrestrial measurements Plasma density Plasma waves Radio frequency Fluctuations
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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