Measurements using tangentially viewing bolometers on TFTR
作者:
C. E. Bush,
J. Schivell,
R. Budny,
R. A. Ellis,
R. J. Goldston,
D. McCune,
S. S. Medley,
S. D. Scott,
H. H. Towner,
R. M. Wieland,
期刊:
Review of Scientific Instruments
(AIP Available online 1988)
卷期:
Volume 59,
issue 8
页码: 1869-1871
ISSN:0034-6748
年代: 1988
DOI:10.1063/1.1140091
出版商: AIP
数据来源: AIP
摘要:
Co‐ and counter‐viewing bolometers aimed along a common tangency chord are being used to study power losses due to charge exchange (CX) of fast ions in neutral beam injection (NBI) heated TFTR plasmas. For unidirectional injection, tangential bolometers oriented to view CX loss of circulating fast ions detect losses from the thermal target plasma (impurity radiation and CX) plus power due to the fast ion CX loss, whereas bolometers oppositely directed measure only the target plasma contribution. The difference between the two signals is a measure of the fast ion CX loss. Additional information is obtained by comparing the tangential bolometer signals with those of perpendicularly viewing bolometer monitors and arrays. The measurements are compared to results of the TRANSP code analysis.
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