Numerical Considerations for Neutral Beam Spectroscopy Based Diagnostics in the Stellarator TJ-II

被引：1

作者：

McCarthy, K. J. ^{[1
]}

Panadero, N. ^{[1
]}

Lopez-Miranda, B. ^{[1
]}

机构：

[1] CIEMAT, Lab Nacl Fus, Madrid 28040, Spain

来源：

JOURNAL OF FUSION ENERGY | 2020年 / 39卷 / 05期

关键词：

Stellarator; Neutral beam; Diagnostics; Spectroscopy; EMISSION-SPECTROSCOPY;

D O I：

10.1007/s10894-020-00248-3

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Two neutral-beam based diagnostic techniques are numerically evaluated for the stellarator TJ-II. The evaluation considers the beam from a dedicated diagnostic neutral beam injector that provides a 5 ms pulse of hydrogen accelerated to 30 keV as well as the light throughput of a dual purpose optical system that views the beam as it traverses the microwave, or neutral beam, heated plasmas of this magnetic confinement device. In the first instance, in which the implementation of the beam emission spectroscopy technique is considered for characterizing medium to long wavelength plasma turbulence, detailed estimates are made to determine the Balmer H alpha light intensity reaching avalanche photodiode modules. In the second instance, similar detailed estimates are made for the spectrograph-based experimental set-up used for the Motional Stark Emission technique that has been successfully employed to determine the magnitude and direction of the internal magnetic field in TJ-II plasmas. In addition, optical measurements made to evaluate beam energy and composition are described. Finally, estimates and measurements are compared and discussed in order to complete this work.

引用

页码：230 / 239

页数：10

共 31 条

[1] A diagnostic neutral beam system for the MST reversed-field pinch [J].

Abdrashitov, GF ;

Davydenko, VI ;

Deichuli, PP ;

Den Hartog, DJ ;

Fiksel, G ;

Ivanov, AA ;

Korepanov, SA ;

Murakhtin, SV ;

Shulzhenko, GI .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01) :594-597

[2] Incompressibility of impurity flows in low density TJ-II plasmas and comparison with neoclassical theory [J].

Arevalo, J. ;

Alonso, J. A. ;

McCarthy, K. J. ;

Velasco, J. L. .

NUCLEAR FUSION, 2013, 53 (02)

[3] Volume phase gratings for spectroscopy, ultrafast laser compressors, and wavelength division multiplexing [J].

Arns, JA ;

Colburn, WS ;

Barden, SC .

CURRENT DEVELOPMENTS IN OPTICAL DESIGN AND OPTICAL ENGINEERING VIII, 1999, 3779 :313-323

[4] Exploiting a transmission grating spectrometer [J].

Bell, RE .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (10) :4158-4161

[5] OBSERVATIONS OF MOTIONAL STARK FEATURES IN THE BALMER SPECTRUM OF DEUTERIUM IN THE JET PLASMA [J].

BOILEAU, A ;

VONHELLERMANN, M ;

MANDL, W ;

SUMMERS, HP ;

WEISEN, H ;

ZINOVIEV, A .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1989, 22 (07) :L145-L152

[6] Charge-exchange spectroscopic diagnostic for the TJ-II stellarator [J].

Carmona, J. M. ;

McCarthy, K. J. ;

Balbin, R. ;

Petrov, S. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2006, 77 (10)

[7] 3D effects on transport and plasma control in the TJ-II stellarator [J].

Castejon, F. ;

Alegre, D. ;

Alonso, A. ;

Alonso, J. ;

Ascasibar, E. ;

Baciero, A. ;

de Bustos, A. ;

Baiao, D. ;

Barcala, J. M. ;

Blanco, E. ;

Borchardt, M. ;

Botija, J. ;

Cabrera, S. ;

de la Cal, E. ;

Calvo, I. ;

Cappa, A. ;

Carrasco, R. ;

Castro, R. ;

De Castro, A. ;

Catalan, G. ;

Chmyga, A. A. ;

Chamorro, M. ;

Dinklage, A. ;

Eliseev, L. ;

Estrada, T. ;

Fernandez-Marina, F. ;

Fontdecaba, J. M. ;

Garcia, L. ;

Garcia-Cortes, I. ;

Garcia-Gomez, R. ;

Garcia-Regana, J. M. ;

Guasp, J. ;

Hatzky, R. ;

Hernanz, J. ;

Hernandez, J. ;

Herranz, J. ;

Hidalgo, C. ;

Hollmann, E. ;

Jimenez-Denche, A. ;

Kirpitchev, I. ;

Kleiber, R. ;

Komarov, A. D. ;

Kozachoek, A. S. ;

Krupnik, L. ;

Lapayese, F. ;

Liniers, M. ;

Liu, B. ;

Lopez-Bruna, D. ;

Lopez-Fraguas, A. ;

Lopez-Miranda, B. .

NUCLEAR FUSION, 2017, 57 (10)

[8] Beam emission spectroscopy for density turbulence measurements on the MAST spherical tokamak [J].

Field, A. R. ;

Dunai, D. ;

Conway, N. J. ;

Zoletnik, S. ;

Sarkozi, J. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2009, 80 (07)

[9]

Fontdecaba Josep Maria, 2010, Plasma and Fusion Research, V5, DOI 10.1585/pfr.5.S2085

[10] Spectroscopic Determination of the Species Fractions and the Power Profiles of the Diagnostic Neutral Beam on the HT-7 Tokamak [J].

Fu, Jia ;

Shi, Yuejiang ;

Li, Yingying ;

Wang, Fudi ;

Liu, Sheng ;

Zhang, Jian ;

Li, Jun ;

Huang, Yiyyun ;

Xie, Yuanlai ;

Liu, Zhimin ;

Hu, Chundong ;

Wan, Baonian ;

Rowan, William ;

Huang, He .

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2011, 58 (05) :1141-1145

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