Velocity-space sensitivity of the compact neutron emission spectrometers at EAST.

Clicks: 239
ID: 97189
2018
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Abstract
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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zhang2018velocityspacethe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhang, Y M;Ge, L J;Sun, J Q;Hu, Z M;Nocente, M;Gorini, G;Tardocchi, M;Zhong, G Q;Hu, L Q;Li, X Q;Fan, T S;
Journal The Review of scientific instruments
Year 2018
DOI
10.1063/1.5039393
URL
Keywords
cosmic rays cosmogenic neutrons geomagnetic pole neutron detectors secondary cosmic rays

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