skip to main content

Title: Challenges and design solutions of the liquid hydrogen circuit at the European Spallation Source

The European Spallation Source (ESS), Lund, Sweden will be a 5MW long-pulse neutron spallation research facility and will enable new opportunities for researchers in the fields of life sciences, energy, environmental technology, cultural heritage and fundamental physics. Neutrons are produced by accelerating a high-energy proton beam into a rotating helium-cooled tungsten target. These neutrons pass through moderators to reduce their energy to an appropriate range (< 5 meV for cold neutrons); two of which will use liquid hydrogen at 17 K as the moderating and cooling medium. There are several technical challenges to overcome in the design of a robust system that will operate under such conditions, not least the 20 kW of deposited heat. These challenges and the associated design solutions will be detailed in this paper.
Authors:
; ; ; ;  [1] ;  [2] ;  [3]
  1. European Spallation Source ESS AB, SE-22100 Lund (Sweden)
  2. Forschungzentrum Jülich, Jülich (Germany)
  3. Technische Universität Dresden, Dresden (Germany)
Publication Date:
OSTI Identifier:
22263969
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1573; Journal Issue: 1; Conference: International cryogenic materials 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:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COLD NEUTRONS; COOLING; DEPOSITS; DESIGN; HELIUM; LIQUIDS; PROTON BEAMS; PULSES; TUNGSTEN