Application of microwave reflectometry to the measurement of fast magnetosonic waves in the Tokamak Fusion Test Reactor

R. Nazikian; R. Majeski; E. Mazzucato; M. McCarthy; H. K. Park; C. K. Phillips; J. H. Rogers; G. Schilling; G. Taylor

doi:10.1063/1.1147604

Application of microwave reflectometry to the measurement of fast magnetosonic waves in the Tokamak Fusion Test Reactor

R. Nazikian
, R. Majeski
, E. Mazzucato
, M. McCarthy
, H. K. Park
, C. K. Phillips
, J. H. Rogers
, G. Schilling
, G. Taylor

PPPL Tokamak Expermntl Science

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The application of microwave reflectometry to the study of fast magnetosonic waves in the Tokamak Fusion Test Reactor (TFTR) is investigated. Assuming the validity of geometric optics for reflectometer measurements, it is shown that linearity to the fast wave amplitude is restricted to very small density fluctuation levels (ñ/n<10^-3). Beyond this level, both phase and amplitude ambiguities occur that makes interpretation difficult. Measurements of 30 MHz fast magnetosonic waves in the core of TFTR plasmas are presented.

Original language	English (US)
Pages (from-to)	450-453
Number of pages	4
Journal	Review of Scientific Instruments
Volume	68
Issue number	1
DOIs	https://doi.org/10.1063/1.1147604
State	Published - Jan 1997

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.1147604

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title = "Application of microwave reflectometry to the measurement of fast magnetosonic waves in the Tokamak Fusion Test Reactor",

abstract = "The application of microwave reflectometry to the study of fast magnetosonic waves in the Tokamak Fusion Test Reactor (TFTR) is investigated. Assuming the validity of geometric optics for reflectometer measurements, it is shown that linearity to the fast wave amplitude is restricted to very small density fluctuation levels ({\~n}/n<10-3). Beyond this level, both phase and amplitude ambiguities occur that makes interpretation difficult. Measurements of 30 MHz fast magnetosonic waves in the core of TFTR plasmas are presented.",

author = "R. Nazikian and R. Majeski and E. Mazzucato and M. McCarthy and Park, \{H. K.\} and Phillips, \{C. K.\} and Rogers, \{J. H.\} and G. Schilling and G. Taylor",

year = "1997",

month = jan,

doi = "10.1063/1.1147604",

language = "English (US)",

volume = "68",

pages = "450--453",

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publisher = "American Institute of Physics",

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T1 - Application of microwave reflectometry to the measurement of fast magnetosonic waves in the Tokamak Fusion Test Reactor

AU - Nazikian, R.

AU - Majeski, R.

AU - Mazzucato, E.

AU - McCarthy, M.

AU - Park, H. K.

AU - Phillips, C. K.

AU - Rogers, J. H.

AU - Schilling, G.

AU - Taylor, G.

PY - 1997/1

Y1 - 1997/1

N2 - The application of microwave reflectometry to the study of fast magnetosonic waves in the Tokamak Fusion Test Reactor (TFTR) is investigated. Assuming the validity of geometric optics for reflectometer measurements, it is shown that linearity to the fast wave amplitude is restricted to very small density fluctuation levels (ñ/n<10-3). Beyond this level, both phase and amplitude ambiguities occur that makes interpretation difficult. Measurements of 30 MHz fast magnetosonic waves in the core of TFTR plasmas are presented.

AB - The application of microwave reflectometry to the study of fast magnetosonic waves in the Tokamak Fusion Test Reactor (TFTR) is investigated. Assuming the validity of geometric optics for reflectometer measurements, it is shown that linearity to the fast wave amplitude is restricted to very small density fluctuation levels (ñ/n<10-3). Beyond this level, both phase and amplitude ambiguities occur that makes interpretation difficult. Measurements of 30 MHz fast magnetosonic waves in the core of TFTR plasmas are presented.

UR - https://www.scopus.com/pages/publications/0346582309

UR - https://www.scopus.com/pages/publications/0346582309#tab=citedBy

U2 - 10.1063/1.1147604

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EP - 453

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 1

ER -

Application of microwave reflectometry to the measurement of fast magnetosonic waves in the Tokamak Fusion Test Reactor

Abstract

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