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000906988 037__ $$aFZJ-2022-01800
000906988 1001_ $$0P:(DE-Juel1)180458$$aSchwab, Alexander$$b0
000906988 1112_ $$aInternational Symposium UCANS9$$conline by RIKEN, Japan$$d2022-03-28 - 2022-03-31$$gUCANS9$$wonline event
000906988 245__ $$aCold moderators for the High Brilliance Neutron Source
000906988 260__ $$c2022
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000906988 520__ $$aLong-wavelength neutrons for the investigation of nano-scale materials are an indispensable tool in neutronresearch. With the decommissioning of several European nuclear research reactors in recent times compactaccelerator-driven neutron sources (CANS) are of interest in providing scientists with the necessary capacityof neutrons to conduct experiments.At the High Brilliance Neutron Source (HBS) project, multiple cold moderators will be positioned inside thesame Target-Moderator-Reflector unit (TMR), each providing its own instrument with cold or even verycold neutrons. All of these moderators can therefore be optimized in terms of material, operating temperatureand geometry, depending on the requirements of the instrument.In a first approach, two cryogenic moderator systems for a prototype TMR have been designed and arecurrently being manufactured at Forschungszentrum Jülich. While one is a closed-cycle liquid parahydrogensystem, the other one allows the batch-wise production of solid moderators, e. g. frozen methane. Bothmoderators are positioned as close to the target as possible by using so-called moderator plugs (MPs). Theseconsist of a vacuum-insulated cryostat with a detachable fluid transfer and moderator section, a neutronguide and surrounding radiation shielding.The planned operation of these cryogenic moderator prototypes from summer 2022 will enable theexperimental investigation of different cold moderator geometries, as well as various options for thesurrounding thermal moderator and reflector. The obtained results can then be used to validate andcomplement nuclear simulations, proof efficient operation and will allow more reliable future designs ofsuch cold neutron sources.
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000906988 7001_ $$0P:(DE-HGF)0$$aEisenhut, Sebastian$$b1
000906988 7001_ $$0P:(DE-Juel1)143938$$aBeßler, Yannick$$b2
000906988 7001_ $$0P:(DE-Juel1)169802$$aBaggemann, Johannes$$b3$$ufzj
000906988 7001_ $$0P:(DE-Juel1)7897$$aLi, Jingjing$$b4
000906988 7001_ $$0P:(DE-Juel1)168124$$aGutberlet, Thomas$$b5
000906988 7001_ $$0P:(DE-Juel1)130928$$aRücker, Ulrich$$b6
000906988 7001_ $$0P:(DE-Juel1)131055$$aZakalek, Paul$$b7
000906988 7001_ $$0P:(DE-Juel1)130572$$aBrückel, Thomas$$b8
000906988 7001_ $$0P:(DE-Juel1)142196$$aNatour, Ghaleb$$b9
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000906988 9201_ $$0I:(DE-Juel1)JCNS-HBS-20180709$$kJCNS-HBS$$lHigh Brilliance Source$$x3
000906988 9201_ $$0I:(DE-Juel1)ZEA-1-20090406$$kZEA-1$$lZentralinstitut für Technologie$$x4
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