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@INPROCEEDINGS{Gutberlet:857596,
author = {Gutberlet, Thomas and Cronert, Tobias and Baggemann,
Johannes and Zakalek, Paul and Rücker, Ulrich and Brückel,
Thomas},
title = {{C}old moderator systems for compact accelerator-based
neutron sources},
reportid = {FZJ-2018-06581},
year = {2018},
abstract = {For brilliance-optimized compact accelerator driven neutron
sources the gain factor provided by an optimized neutron
moderation and extraction system is the most effective
method to enhance the performance and compensate for the low
value of “total number of produced neutrons” compared to
research reactors. To maximize the gain provided by low
dimensional moderators - first proposed for the
ESS-”butterfly” cold source, a series of advanced
features will be employed in the High Brilliance neutron
Source project (HBS) of the Jülich Centre for Neutron
Science (JCNS). Specifically, these advances include a novel
cold source design, specifically tailored to produce the
neutron phase-space for a certain instrument type, and
neutron optical elements (like filters, guides and lenses)
directly at the source and optimized from source to sample
position for one dedicated scientific task. We will report
on the design, construction and first measurements with a
thermal moderating reflector prototype (MRP) and cold
moderator system. In addition, we will inform on the current
status of the cold ortho/para hydrogen finger moderator and
mixing cryostat with on-line heat capacity measurement and
the “in operation” conditioning of the ortho/para state
ratio.},
month = {Oct},
date = {2018-10-01},
organization = {IAEA Technical Meeting on Guidelines
for the Establishment and Optimization
of Cold Neutron Sources in Research
Reactor and Accelerator Facilities,
Vienna (Austria), 1 Oct 2018 - 4 Oct
2018},
subtyp = {After Call},
cin = {JCNS-FRM-II / JCNS-2 / JCNS-HBS},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)JCNS-HBS-20180709},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6G15 - FRM II / MLZ (POF3-6G15)},
pid = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/857596},
}