skip to main content

SciTech ConnectSciTech Connect

Title: Development of an integrated energetic neutral particle measurement system on experimental advanced full superconducting tokamak

Full function integrated, compact silicon photodiode based solid state neutral particle analyzers (ssNPA) have been developed for energetic particle (EP) relevant studies on the Experimental Advanced Superconducting Tokamak (EAST). The ssNPAs will be mostly operated in advanced current mode with a few channels to be operated in conventional pulse-counting mode, aiming to simultaneously achieve individually proved ultra-fast temporal, spatial, and spectral resolution capabilities. The design details together with considerations on EAST specific engineering realities and physics requirements are presented. The system, including a group of single detectors on two vertical ports and two 16-channel arrays on a horizontal port, can provide both active and passive charge exchange measurements. ssNPA detectors, with variable thickness of ultra thin tungsten dominated foils directly deposited on the front surface, are specially fabricated and utilized to achieve about 22 keV energy resolution for deuterium particle detection.
Authors:
; ;  [1] ; ; ; ; ;  [2]
  1. Department of Physics and Astronomy, University of California, Irvine, California 92697-4575 (United States)
  2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)
Publication Date:
OSTI Identifier:
22308632
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; 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; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGE EXCHANGE; COUNTING TECHNIQUES; CURRENTS; DETECTION; DEUTERIUM; ENERGY RESOLUTION; FOILS; HT-7U TOKAMAK; NEUTRAL PARTICLE ANALYZERS; PHOTODIODES; PULSES; SILICON; SPATIAL RESOLUTION; TIME RESOLUTION; TUNGSTEN