John Jurns
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Liquid deuterium cold source concept for the NIST neutron source Open
The National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) houses an aging reactor that serves more than 40 % of all cold neutron research needs in the U.S. First critical in 1967, the National Bureau of S…
Progress towards Operation of a Deuterium Cold Neutron Source at the NCNR Open
The NIST Center for Neutron Research (NCNR) operates a 20 MW research reactor that produces neutrons for a suite of 30 neutron scattering instruments. 70% of these instruments use cold neutrons (E<5 meV), which are moderated by two separat…
Liquid hydrogen for cold neutron production at European Spallation Source ERIC Open
The European Spallation Source (ESS) will be a 5 MW, long-pulsed spallation neutron research facility. One of the key feature is that ESS will use liquid hydrogen as a moderating media for the cold neutrons. The hydrogen operates at cryoge…
ESS Target Moderator Cryogenic Plant : Process Design Open
The European Spallation Source (ESS) project is a neutron spallation source facility currently under construction outside Lund, Sweden. The ESS accelerator will deliver a 5 MW proton beam to a spallation target at 2.0 GeV with a nominal cu…