NDLI: Millimeter Wave Imaging and Visualization of Plasma Waves and Instabilities

Content Provider	IEEE Xplore Digital Library
Author	Luhmann, N.C.
Copyright Year	2005
Description	Author affiliation: University of California, Davis, CA 95616 USA (Luhmann, N.C.)
Abstract	Summary form only given. The microwave and millimeter wave region of the electromagnetic spectrum is ideally suited for the determination of plasma parameters such as electron density and temperature as well as more subtle phenomena such as collective waves and instabilities through exploitation of the frequency dependent properties of this dielectric medium. This spectral region is witnessing intensive activity through the recent microwave and millimeter wave technology advances which have made possible the development of novel imaging and visualization diagnostics for hot plasmas. These include imaging scattering systems and imaging interferometer/polarimeter systems as well as electron cyclotron emission imaging (ECEI) systems and microwave imaging reflectometry (MIR) systems. For example, a novel 2-D ECEI on the TEXTOR tokamak provides 2-D images with high spatial resolution [128 pixels covering 8 cm (radial) x 16 cm (vertical)], and high temporal resolution (up to ~5 microsec) which have revealed the details of 2-D images of the electron temperature fluctuations during the precursor phase and the crash time of m=1 (sawtooth) oscillations, with a level of detail that is not accessible through conventional methods (1-D ECE and/or tomography). Also on TEXTOR, a 16-channel MIR system, that can measure multiple poloidal wavenumbers up to ~3 $cm^{-1},$ has been designed and installed for plasma experiments. These and other imaging diagnostics implementations will be described.
Sponsorship	Plasma Sci. Appl. Comm. IEEE Nucl. Plasma Sci. Soc.
Starting Page	278
Ending Page	278
File Size	817442
Page Count	1
File Format	PDF
ISBN	0780393007
ISSN	07309244
DOI	10.1109/PLASMA.2005.359373
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Plasma waves Microwave imaging High-resolution imaging Millimeter wave technology Plasma properties Plasma temperature Electrons Plasma diagnostics Spatial resolution
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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