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Variable location channels to improve efficiency and precision for direct del T-e measurements and high spatial resolution T-e-profile measurements using electron cyclotron emission
Houshmandyar, S.1; Austin, M. E.1; Brookman, M. W.1,2; Liu, Y.3; Rowan, W. L.1; Zhao, H.1,3
2018-10-01
Source PublicationREVIEW OF SCIENTIFIC INSTRUMENTS
ISSN0034-6748
Volume89Issue:10Pages:5
Corresponding AuthorHoushmandyar, S.(houshmandyar@austin.utexas.edu)
AbstractElectron cyclotron emission (ECE) diagnostics that use variable location channels based on yttrium iron garnet (YIG) bandpass filters improve the precision and the efficiency of measurements of electron temperature (Te) profiles and fluctuations (ffi Te). These variable frequency filters were substituted for fixed frequency filters in the intermediate frequency section to achieve the required higher resolution over a target radial range, just before the experiment. Here, we present the proof-of-principle for high temporal resolution measurement of the electron temperature gradient, via real-time slewing of a YIG filter for relocation of anECEchannel during a long pulse. The key component is the application of YIG tunable filters with their narrow bandwidth and capability for a high slew rate of their center frequency. This application permits fast relocation of the ECE channels for direct measurement of the gradient and close spacing of channels to investigate the magnetic island's dynamic behavior. Published by AIP Publishing.
Funding OrganizationU.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES
DOI10.1063/1.5035429
Indexed BySCI
Language英语
Funding ProjectU.S. Department of Energy OFES[DE-FG02-97ER54415] ; U.S. Department of Energy OFES[DE-SC0010500]
Funding OrganizationU.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES ; U.S. Department of Energy OFES
WOS Research AreaInstruments & Instrumentation ; Physics
WOS SubjectInstruments & Instrumentation ; Physics, Applied
WOS IDWOS:000449144500151
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/34553
Collection中科院等离子体物理研究所
Corresponding AuthorHoushmandyar, S.
Affiliation1.Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA
2.Gen Atom Co, POB 85608, San Diego, CA 92186 USA
3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Houshmandyar, S.,Austin, M. E.,Brookman, M. W.,et al. Variable location channels to improve efficiency and precision for direct del T-e measurements and high spatial resolution T-e-profile measurements using electron cyclotron emission[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2018,89(10):5.
APA Houshmandyar, S.,Austin, M. E.,Brookman, M. W.,Liu, Y.,Rowan, W. L.,&Zhao, H..(2018).Variable location channels to improve efficiency and precision for direct del T-e measurements and high spatial resolution T-e-profile measurements using electron cyclotron emission.REVIEW OF SCIENTIFIC INSTRUMENTS,89(10),5.
MLA Houshmandyar, S.,et al."Variable location channels to improve efficiency and precision for direct del T-e measurements and high spatial resolution T-e-profile measurements using electron cyclotron emission".REVIEW OF SCIENTIFIC INSTRUMENTS 89.10(2018):5.
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