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@INPROCEEDINGS{MA:910114,
author = {MA, Zhanwen and LIEUTENANT, Klaus and VOIGT, Jörg and
SCHRADER, Tobias E. and GUTBERLET, Thomas and BRÜCKEL,
Thomas},
title = {{VITESS} simulation and virtual experiment of the neutron
diffractometer for small samples at the {H}igh {B}rilliance
{N}eutron {S}ource},
reportid = {FZJ-2022-03622},
year = {2022},
abstract = {For the sustainable development of the neutron community in
Europe and Germany, the High Brilliance Neutron Source (HBS)
has been proposed at the Julich Center for Neutron Science
(JCNS) [1]. The accelerator, target, and moderators of HBS
have been optimized to achieve a high moderator surface peak
brilliance comparable to a medium flux reactor source or
medium power spallation sources [2]. The instruments are
optimized by Monte-Carlo simulations to make full use of the
high brilliance and high flexibility of the HBS. The low
dimensional moderators of HBS are well suited for the
investigation of small samples [3]. For example, in neutron
macromolecular crystallography, typical sample volumes reach
from 0.01 mm3 to 1 mm3 [4]. As the scattered signal is
small, special care must be taken to keep the instrumental
background extremely low. In this work, the design progress
of a macromolecular diffractometer, including the
optimization of the instrument and the evaluation of the
virtual experiments, will be presented. By tailoring a
small, appropriately collimated beam far upstream of the
sample position, we can obtain a low background tunable
neutron beam at a 1 mm2 sample with a flux comparable to the
existing instruments at spallation neutron sources or
reactor sources. [1] T. Gutberlet et al., “The Jülich
high brilliance neutron source project – Improving access
to neutrons,” Phys. B Condens. Matter, vol. 570, no.
December 2017, pp. 345– 348, (2019). [2] T. Brückel et
al., “Conceptual Design Report Jülich High Brilliance
Neutron Source ( HBS ),” Forschungszentrum Jülich GmbH,
(2020). [3] T. Cronert et al., “High brilliant thermal and
cold moderator for the HBS neutron source project
Jülich,” J. Phys. Conf. Ser., vol. 746, no. 1, (2016).
[4] M. P. Blakeley and A. D. Podjarny, “Neutron
macromolecular crystallography,” Emerg. Top. Life Sci.,
vol. 2, no. 1, pp. 39–55, (2018).},
month = {Oct},
date = {2022-10-11},
organization = {JCNS WORKSHOP 2022 TRENDS AND
PERSPECTIVES IN NEUTRON SCATTERING:
EXPERIMENTS AND DATA ANALYSIS IN THE
DIGITAL AGE, Evangelische Akademie
Tutzing (Germany), 11 Oct 2022 - 14 Oct
2022},
subtyp = {Invited},
cin = {JCNS-2 / JCNS-HBS / PGI-4 / JARA-FIT / JCNS-FRM-II},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)JCNS-HBS-20180709
/ I:(DE-Juel1)PGI-4-20110106 / $I:(DE-82)080009_20140620$ /
I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (FZJ) (POF4-6G4)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/910114},
}