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Title: Second generation fusion neutron time-of-flight spectrometer at optimized rate for fully digital data acquisition

The progress on high-rate event recording of data is taken as starting point to revisit the design of fusion neutron spectrometers based on the TOF (time-of-flight) technique. The study performed was aimed at how such instruments for optimized rate (TOFOR) can be further developed to enhance the plasma diagnostic capabilities based on measurement of the 2.5 MeV dd neutron emission from D plasmas, especially the weak spectral components that depend on discrimination of extraneous events. This paper describes a design (TOFOR II) adapted for use with digital wave form recording of all detector pulses providing information on both amplitude (pulse height) and timing. The results of simulations are presented and the performance enhancement is assessed in comparison to the present.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ; ;  [4] ;  [3]
  1. School of Physics, State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
  2. Department of Engineering Sciences, Uppsala University, Uppsala (Sweden)
  3. (Italy)
  4. Dipartimento di Fisica “G. Occhialini,” Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan (Italy)
Publication Date:
OSTI Identifier:
22254954
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AMPLITUDES; DATA ACQUISITION; NEUTRON EMISSION; NEUTRON SPECTROMETERS; NEUTRONS; PLASMA; PULSES; SIMULATION; TIME-OF-FLIGHT METHOD; TIME-OF-FLIGHT SPECTROMETERS