Several compact neutron spectrometers are now installed at EAST (Experimental Advanced Superconducting Tokamak) to obtain information on fuel ions produced in the core of the plasma. In this paper, a stilbene crystal neutron spectrometer and an EJ301 liquid scintillator neutron spectrometer with n-γ discrimination capability will be discussed. Both spectrometers have a horizontal line of sight, while at different positions. In the last few experiment campaigns at EAST, they all proved to be reliable diagnostics for auxiliary heated D–D plasmas. Taking the response function simulated by dedicated Geant4 models into consideration, the velocity-space sensitivities given by the instrument-specific weight function of the beam-thermal part of neutron energy spectra in D–D plasmas are derived for both spectrometers with the Genesis code. This method makes it possible to directly relate the contribution of different deuteron velocity space regions to events in each channel of the neutron spectrum measured by the two instruments: http://rsi-htpd.peerx-press.org/.
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October 2018
Research Article|
October 17 2018
Velocity-space sensitivity of the compact neutron emission spectrometers at EAST
Y. M. Zhang;
Y. M. Zhang
1
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
, Beijing 100871, China
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L. J. Ge
;
L. J. Ge
1
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
, Beijing 100871, China
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J. Q. Sun
;
J. Q. Sun
1
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
, Beijing 100871, China
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Z. M. Hu;
Z. M. Hu
2
Dipartimento di Fisica, Università di Milano-Bicocca
, Piazza della Scienza 3, 20126 Milano, Italy
3
Istituto di Fisica del Plasma “P. Caldirola,” EURATOM-ENEA-CNR Association
, Via Cozzi 53, 20125 Milano, Italy
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M. Nocente
;
M. Nocente
2
Dipartimento di Fisica, Università di Milano-Bicocca
, Piazza della Scienza 3, 20126 Milano, Italy
3
Istituto di Fisica del Plasma “P. Caldirola,” EURATOM-ENEA-CNR Association
, Via Cozzi 53, 20125 Milano, Italy
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G. Gorini;
G. Gorini
2
Dipartimento di Fisica, Università di Milano-Bicocca
, Piazza della Scienza 3, 20126 Milano, Italy
3
Istituto di Fisica del Plasma “P. Caldirola,” EURATOM-ENEA-CNR Association
, Via Cozzi 53, 20125 Milano, Italy
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M. Tardocchi;
M. Tardocchi
2
Dipartimento di Fisica, Università di Milano-Bicocca
, Piazza della Scienza 3, 20126 Milano, Italy
3
Istituto di Fisica del Plasma “P. Caldirola,” EURATOM-ENEA-CNR Association
, Via Cozzi 53, 20125 Milano, Italy
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G. Q. Zhong
;
G. Q. Zhong
4
Institute of Plasma Physics, CAS
, Hefei, Anhui 230031, China
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L. Q. Hu;
L. Q. Hu
4
Institute of Plasma Physics, CAS
, Hefei, Anhui 230031, China
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X. Q. Li;
X. Q. Li
1
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
, Beijing 100871, China
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T. S. Fan
T. S. Fan
a)
1
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
, Beijing 100871, China
a)Author to whom correspondence should be addressed: [email protected].
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a)Author to whom correspondence should be addressed: [email protected].
Note: Paper published as part of the Proceedings of the 22nd Topical Conference on High-Temperature Plasma Diagnostics, San Diego, California, April 2018.
Rev. Sci. Instrum. 89, 10I141 (2018)
Article history
Received:
May 07 2018
Accepted:
July 30 2018
Citation
Y. M. Zhang, L. J. Ge, J. Q. Sun, Z. M. Hu, M. Nocente, G. Gorini, M. Tardocchi, G. Q. Zhong, L. Q. Hu, X. Q. Li, T. S. Fan; Velocity-space sensitivity of the compact neutron emission spectrometers at EAST. Rev. Sci. Instrum. 1 October 2018; 89 (10): 10I141. https://doi.org/10.1063/1.5039393
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