On the scattering correction of fast-ion D-alpha signals on NSTX-U

被引：4
|
作者：
Hao, G. Z. [1 ]
Heidbrink, W. W. [1 ]
Liu, D. [1 ]
Stagner, L. [1 ]
Podesta, M. [2 ]
Bortolon, A. [2 ]
机构：
[1] Univ Calif Irvine, Irvine, CA 92697 USA
[2] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 06期
关键词：
D O I：
10.1063/1.5031879
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Analysis of fast-ion D-alpha (FIDA) data on National Spherical Torus Experiment-Upgrade (NSTX-U) shows that the cold D-alpha line contaminates the FIDA baseline. The scattered light is comparable to the FIDA emission. A scattering correction is required to extract the FIDA signal. Two methods that relate the scattered light contamination to the intensity of the cold D-alpha line are employed. One method uses laboratory measurements with a calibration lamp; the other method uses data acquired during plasma operation and singular value decomposition analysis. After correction, both the FIDA spectra and spatial profile are in better agreement with theoretical predictions. Published by AIP Publishing.
引用
收藏
页数：12
相关论文
共 50 条
  • [21] Emission in the ion cyclotron range of frequencies (ICE) on NSTX and NSTX-U
    Fredrickson, E. D.
    Gorelenkov, N. N.
    Bell, R. E.
    Diallo, A.
    LeBlanc, B. P.
    Podesta, M.
    [J]. PHYSICS OF PLASMAS, 2019, 26 (03)
  • [22] Progress in modelling fast-ion D-alpha spectra and neutral particle analyzer fluxes using FIDASIM
    Geiger, B.
    Stagner, L.
    Heidbrink, W. W.
    Dux, R.
    Fischer, R.
    Fujiwara, Y.
    Garcia, A. V.
    Jacobsen, A. S.
    Jansen van Vuuren, A.
    Karpushov, A. N.
    Liu, D.
    Schneider, P. A.
    Sfiligoi, I.
    Zs. Poloskei, P.
    Weiland, M.
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2020, 62 (10)
  • [23] Chirping ion cyclotron emission (ICE) on NSTX-U
    Fredrickson, E. D.
    Gorelenkov, N. N.
    Bell, R. E.
    Diallo, A.
    LeBlanc, B. P.
    Lestz, J.
    Podesta, M.
    [J]. NUCLEAR FUSION, 2021, 61 (08)
  • [24] Conceptual design of a divertor Thomson scattering diagnostic for NSTX-U
    McLean, A. G.
    Soukhanovskii, V. A.
    Allen, S. L.
    Carlstrom, T. N.
    LeBlanc, B. P.
    Ono, M.
    Stratton, B. C.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2014, 85 (11):
  • [25] A poloidal high-k scattering system for NSTX-U
    Domier, C. W.
    Dannenberg, J.
    Zhu, Y.
    Liu, X.
    Sirigiri, J. R.
    Ren, Y.
    Stratton, B.
    Luhmann, N. C. Jr Jr
    [J]. JOURNAL OF INSTRUMENTATION, 2022, 17 (01):
  • [26] The high-k poloidal scattering system for NSTX-U
    Barchfeld, R.
    Domier, C. W.
    Ren, Y.
    Ellis, R.
    Riemenschneider, P.
    Allen, N.
    Kaita, R.
    Stratton, B.
    Dannenberg, J.
    Zhu, Y.
    Luhmann, N. C., Jr.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2018, 89 (10):
  • [27] Validation of fast-ion D-alpha spectrum measurements during EAST neutral-beam heated plasmas
    Huang, J.
    Heidbrink, W. W.
    von Hellermann, M. G.
    Stagner, L.
    Wu, C. R.
    Hou, Y. M.
    Chang, J. F.
    Ding, S. Y.
    Chen, Y. J.
    Zhu, Y. B.
    Jin, Z.
    Xu, Z.
    Gao, W.
    Wang, J. F.
    Lyu, B.
    Zang, Q.
    Zhong, G. Q.
    Hu, L.
    Wan, B.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2016, 87 (11):
  • [28] A pulse-burst laser system for Thomson scattering on NSTX-U
    Den Hartog, D. J.
    Borchardt, M. T.
    Holly, D. J.
    Diallo, A.
    LeBlanc, B.
    [J]. JOURNAL OF INSTRUMENTATION, 2017, 12
  • [29] Design and Operation of a Fast Valve for Disruption Mitigation Studies on NSTX-U
    Raman, R.
    Plunkett, G. J.
    Lay, W-S.
    [J]. 2015 IEEE 26TH SYMPOSIUM ON FUSION ENGINEERING (SOFE), 2015,
  • [30] Fast-sampling fast-ion D-alpha measurement using multi-anode photomultiplier tube in large helical device
    Kawachi, Y.
    Ogawa, K.
    Osakabe, M.
    Kawamoto, Y.
    Isobe, M.
    Ida, K.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2023, 94 (10):
12345