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@INPROCEEDINGS{Baggemann:877652,
author = {Baggemann, Johannes and Zakalek, P. and Doege, P-E. and
Mauerhofer, E. and Rücker, U. and Li, Jingjing and
Gutberlet, T. and Brückel, T.},
title = {{C}ooling of high power targets},
reportid = {FZJ-2020-02365},
year = {2020},
abstract = {In recent years, the interest in compact,
accelerator-driven neutron sources (CANS) has increased
worldwide, especially with regard to the increasing shutdown
of existing fission-based neutron sources. The focus of
interest is shifting more and more from low-flux university
scale CANS to powerful high-flux CANS that have the
potential to replace current national neutron sources. One
of the key components on the way from compact low flux
neutron sources to compact high flux neutron sources is the
neutron target. Unique requirements are placed on the
target, consisting of low ion energies in the range of 70
MeV at high ion fluxes up to 100 mA, maximal neutron yield
and minimal surface area. These requirements lead among
other things to extreme thermal power densities and stresses
within the target and therefore the heat dissipation of the
target can become a bottleneck for the entire facility in
terms of power and reliability. Currently, different
approaches to cool the target are being investigated in the
different CANS projects, e.g. liquid targets or high
temperature targets. The JÜLICH HBS project focuses on a
solid target with an adjusted micro channel structure.
Theoretical considerations and simulations indicate a
possible power density above 1000 W/cm² at a total power of
100 kW, experimental proofs are currently being prepared.
The fluid dynamics and structural mechanics simulations of
of the target were performed with the commercial ANSYS
software. The simulations for the target cooling will be
presented at the workshop.},
month = {Jun},
date = {2020-06-22},
organization = {The Japanese RIKEN Center for Advanced
Photonics (RAP) and the Jülich Centre
for Neutron Science (JCNS) fourth joint
workshop on compact accelerator-driven
neutron sources (CANS) special webinar,
Forschungszentrum Jülich (Germany), 22
Jun 2020 - 24 Jun 2020},
subtyp = {Invited},
cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-HBS},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-HBS-20180709},
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},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/877652},
}