BROWSE

Related Researcher

Author

Park, Hyeon Keo
Fusion Plasma Stability and Confinement Research Lab
Research Interests
  • Fusion, plasma, MHD, turbulence, imaging

ITEM VIEW & DOWNLOAD

Alternative optical concept for electron cyclotron emission imaging

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Alternative optical concept for electron cyclotron emission imaging
Author
Liu, J.X.Milbourne, T.Bitter, M.Delgado-Aparicio, L.Dominguez, A.Efthimion, P.C.Hill, K.W.Kramer, G.J.Kung, C.Kubota, S.Kasparek, W.Lu, J.Pablant, N.A.Park, Hyeon KeoTobias, B.
Keywords
Electron cyclotron resonance; Magnetohydrodynamics; Magnetoplasma; Mirrors Electron cyclotron emission imaging; Microwave systems; Optical components; Optical concept; Proof-of-principle experiments; Spatial resolution; Spherical mirror; Tokamak experiment
Issue Date
201411
Publisher
AMER INST PHYSICS
Citation
REVIEW OF SCIENTIFIC INSTRUMENTS, v.85, no.11, pp.1 - 3
Abstract
The implementation of advanced electron cyclotron emission imaging (ECEI) systems on tokamak experiments has revolutionized the diagnosis of magnetohydrodynamic (MHD) activities and improved our understanding of instabilities, which lead to disruptions. It is therefore desirable to have an ECEI system on the ITER tokamak. However, the large size of optical components in presently used ECEI systems have, up to now, precluded the implementation of an ECEI system on ITER. This paper describes a new optical ECEI concept that employs a single spherical mirror as the only optical component and exploits the astigmatism of such a mirror to produce an image with one-dimensional spatial resolution on the detector. Since this alternative approach would only require a thin slit as the viewing port to the plasma, it would make the implementation of an ECEI system on ITER feasible. The results obtained from proof-of-principle experiments with a 125 GHz microwave system are presented.
URI
Go to Link
DOI
http://dx.doi.org/10.1063/1.4884902
ISSN
0034-6748
Appears in Collections:
SNS_Journal Papers
Files in This Item:
84903709342.pdfDownload

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU