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Title: Cryogenic hydrogen circulation system of neutron source

Cold neutron sources of reactors and spallation neutron sources are classic high flux neutron sources in operation all over the world. Cryogenic fluids such as supercritical or supercooled hydrogen are commonly selected as a moderator to absorb the nuclear heating from proton beams. By comparing supercritical hydrogen circulation systems and supercooled hydrogen circulation systems, the merits and drawbacks in both systems are summarized. When supercritical hydrogen circulates as the moderator, severe pressure fluctuations caused by temperature changes will occur. The pressure control system used to balance the system pressure, which consists of a heater as an active controller for thermal compensation and an accumulator as a passive volume controller, is preliminarily studied. The results may provide guidelines for design and operation of other cryogenic hydrogen system for neutron sources under construction.
Authors:
 [1] ; ; ; ;  [2] ;  [3] ;  [4]
  1. Institute of Physics and Chemistry, Chinese Academy of Sciences, BJ100190 China and University of Chinese Academy of Sciences, Chinese Academy of Sciences, BJ100049 (China)
  2. Institute of Physics and Chemistry, Chinese Academy of Sciences, BJ100190 (China)
  3. School of Energy and Power Engineering, HuaZhong University of Science and Technology, WH430074 (China)
  4. Institute of High Energy Physics, Chinese Academy of Sciences, BJ100049 (China)
Publication Date:
OSTI Identifier:
22262722
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1573; Journal Issue: 1; Conference: Cryogenic engineering conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; COLD NEUTRONS; CRYOGENIC FLUIDS; DESIGN; HEATERS; HEATING; HYDROGEN; MODERATORS; NEUTRON FLUX; NEUTRON SOURCES; PRESSURE CONTROL; PROTON BEAMS