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@ARTICLE{Voigt:841760,
author = {Voigt, J. and Böhm, S. and Dabruck, J. P. and Rücker, U.
and Gutberlet, T. and Brückel, T.},
title = {{S}pectrometers for compact neutron sources},
journal = {Nuclear instruments $\&$ methods in physics research / A},
volume = {884},
issn = {0168-9002},
address = {Amsterdam},
publisher = {North-Holland Publ. Co.},
reportid = {FZJ-2018-00064},
pages = {59 - 63},
year = {2018},
abstract = {We discuss the potential for neutron spectrometers at novel
accelerator driven compact neutron sources. Such a High
Brilliance Source (HBS) relies on low energy nuclear
reactions, which enable cryogenic moderators in very close
proximity to the target and neutron optics at comparably
short distances from the moderator compared to existing
sources. While the first effect aims at increasing the phase
space density of a moderator, the second allows the
extraction of a large phase space volume, which is typically
requested for spectrometer applications. We find that
competitive spectrometers can be realized if (a) the neutron
production rate can be synchronized with the experiment
repetition rate and (b) the emission characteristics of the
moderator can be matched to the phase space requirements of
the experiment. MCNP simulations for protons or deuterons on
a Beryllium target with a suitable target/moderator design
yield a source brightness, from which we calculate the
sample fluxes by phase space considerations for different
types of spectrometers. These match closely the figures of
todays spectrometers at medium flux sources. Hence we
conclude that compact neutron sources might be a viable
option for next generation neutron sources},
cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-FRM-II},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ /
I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {144 - Controlling Collective States (POF3-144) / 524 -
Controlling Collective States (POF3-524) / 6212 - Quantum
Condensed Matter: Magnetism, Superconductivity (POF3-621) /
6213 - Materials and Processes for Energy and Transport
Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000424739900009},
doi = {10.1016/j.nima.2017.11.085},
url = {https://juser.fz-juelich.de/record/841760},
}