Grazing incidence time‐resolving spectrograph for magnetic fusion plasma diagnostics
作者:
W. L. Hodge,
B. C. Stratton,
H. W. Moos,
期刊:
Review of Scientific Instruments
(AIP Available online 1984)
卷期:
Volume 55,
issue 1
页码: 16-24
ISSN:0034-6748
年代: 1984
DOI:10.1063/1.1137576
出版商: AIP
数据来源: AIP
摘要:
A time‐resolving grazing incidence spectrograph based on an image intensified photodiode array detector has been constructed and has demonstrated its utility as a fusion plasma diagnostic. The total wavelength coverage is 15–360 A˚ with 0.7 A˚ resolution (line profile FWHM); portions of this range may be observed during a single plasma discharge with a bandwidth of ∼40 A˚ when the detector is centered at 40 A˚ and ∼80 A˚ with it centered at 200 A˚. Integration times from 5.4 to 13.1 ms are available when the entire photodiode array is read out; integration times as short as 1 ms can be obtained for a few lines of interest through the readout of selected photodiodes. The spectrograph has been radiometrically calibrated over the 60‐ to 360‐A˚ range at the NBS SURF II electron storage ring and is currently in operation on the Princeton Large Torus (PLT) tokamak.
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