The effect of ICRF antenna phasing on metal impurities in TFTR

J. E. Stevens; C. Bush; P. L. Colestock; G. J. Greene; K. W. Hill; J. C. Hosea; C. K. Phillips; B. Stratton; S. Von Goeler; J. R. Wilson; W. Gardner; D. Hoffman; A. Lysojvan

doi:10.1088/0741-3335/32/3/003

The effect of ICRF antenna phasing on metal impurities in TFTR

J. E. Stevens
, C. Bush
, P. L. Colestock
, G. J. Greene
, K. W. Hill
, J. C. Hosea
, C. K. Phillips
, B. Stratton
, S. Von Goeler
, J. R. Wilson
, W. Gardner
, D. Hoffman
, A. Lysojvan

PPPL NSTX

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

14 Scopus citations

Abstract

ICRF power levels of up to 2.8 MW were achieved during the 1988 experimental run on TFTR. Metal impurity concentrations (Ti/el, Cr, Fe, Ni) and Z_eff were monitored during ICRF heating by X-ray pulse height analysis and UV spectroscopy. Antenna phasing was the key variable affecting ICRF performance. No increase in metallic impurities was observed for P _r.f.<or approximately=2.8 MW with the antenna straps phased 0- pi , while a measurable increase in titanium (Faraday screen material) was observed for P_r.f.>or approximately=1.0 MW with 0-0 phasing.

Original language	English (US)
Article number	003
Pages (from-to)	189-196
Number of pages	8
Journal	Plasma Physics and Controlled Fusion
Volume	32
Issue number	3
DOIs	https://doi.org/10.1088/0741-3335/32/3/003
State	Published - 1990

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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Stevens, J. E., Bush, C., Colestock, P. L., Greene, G. J., Hill, K. W., Hosea, J. C., Phillips, C. K., Stratton, B., Von Goeler, S., Wilson, J. R., Gardner, W., Hoffman, D., & Lysojvan, A. (1990). The effect of ICRF antenna phasing on metal impurities in TFTR. Plasma Physics and Controlled Fusion, 32(3), 189-196. Article 003. https://doi.org/10.1088/0741-3335/32/3/003

@article{9769272bffc34005b4201c3ec33e1a92,

title = "The effect of ICRF antenna phasing on metal impurities in TFTR",

abstract = "ICRF power levels of up to 2.8 MW were achieved during the 1988 experimental run on TFTR. Metal impurity concentrations (Ti/el, Cr, Fe, Ni) and Zeff were monitored during ICRF heating by X-ray pulse height analysis and UV spectroscopy. Antenna phasing was the key variable affecting ICRF performance. No increase in metallic impurities was observed for P r.f.r.f.>or approximately=1.0 MW with 0-0 phasing.",

author = "Stevens, \{J. E.\} and C. Bush and Colestock, \{P. L.\} and Greene, \{G. J.\} and Hill, \{K. W.\} and Hosea, \{J. C.\} and Phillips, \{C. K.\} and B. Stratton and \{Von Goeler\}, S. and Wilson, \{J. R.\} and W. Gardner and D. Hoffman and A. Lysojvan",

year = "1990",

doi = "10.1088/0741-3335/32/3/003",

language = "English (US)",

volume = "32",

pages = "189--196",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

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TY - JOUR

T1 - The effect of ICRF antenna phasing on metal impurities in TFTR

AU - Stevens, J. E.

AU - Bush, C.

AU - Colestock, P. L.

AU - Greene, G. J.

AU - Hill, K. W.

AU - Hosea, J. C.

AU - Phillips, C. K.

AU - Stratton, B.

AU - Von Goeler, S.

AU - Wilson, J. R.

AU - Gardner, W.

AU - Hoffman, D.

AU - Lysojvan, A.

PY - 1990

Y1 - 1990

N2 - ICRF power levels of up to 2.8 MW were achieved during the 1988 experimental run on TFTR. Metal impurity concentrations (Ti/el, Cr, Fe, Ni) and Zeff were monitored during ICRF heating by X-ray pulse height analysis and UV spectroscopy. Antenna phasing was the key variable affecting ICRF performance. No increase in metallic impurities was observed for P r.f.r.f.>or approximately=1.0 MW with 0-0 phasing.

AB - ICRF power levels of up to 2.8 MW were achieved during the 1988 experimental run on TFTR. Metal impurity concentrations (Ti/el, Cr, Fe, Ni) and Zeff were monitored during ICRF heating by X-ray pulse height analysis and UV spectroscopy. Antenna phasing was the key variable affecting ICRF performance. No increase in metallic impurities was observed for P r.f.r.f.>or approximately=1.0 MW with 0-0 phasing.

UR - https://www.scopus.com/pages/publications/4644340187

UR - https://www.scopus.com/pages/publications/4644340187#tab=citedBy

U2 - 10.1088/0741-3335/32/3/003

DO - 10.1088/0741-3335/32/3/003

M3 - Article

AN - SCOPUS:4644340187

SN - 0741-3335

VL - 32

SP - 189

EP - 196

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 3

M1 - 003

ER -

The effect of ICRF antenna phasing on metal impurities in TFTR

Abstract

All Science Journal Classification (ASJC) codes

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