Proton Beam Multiplexer Developments for Multi-Target Operation at the High-Brilliance Neutron Source HBS

Rimmler, Marius

Conference Presentation (After Call)

FZJ-2020-01488

Proton Beam Multiplexer Developments for Multi-Target Operation at the High-Brilliance Neutron Source HBS

Rimmler, M. (Corresponding author)FZJ*

2019

8th International Meeting of the Union for Compact Accelerator-driven Neutron Sources, UCANS-8, Paris, France, 8 Jul 2019 - 10 Jul 2019, UCANS 8, Paris, RWTH Aachen, France, 8 Jul 2019 - 10 Jul 2019

Please use a persistent id in citations: http://hdl.handle.net/2128/24560

Abstract: The High Brilliance Source (HBS) project aims to develop a scalable Com-pact Accelerator-driven Neutron Source (CANS) enabling neutron fluxes at thecorresponding instruments comparable to medium-flux fission-based research re-actors. The full-fledged HBS facility features simultaneous operation of differentneutron instruments which subdivide into three target stations each efficientlyoperated to supply different neutron energies. This will be realized by differ-ent proton beam timing schemes distributed to the target stations in order toobtain the optimal balance between wavelength bandwidth and resolution ofthe time-resolved neutron spectrum extracted from the thermal or cold neu-tron moderator according to the requirement of the experiment. For this reasona proton pulse distribution device, i.e. multiplexer, has to be developed thatallows the spatial separation of two different subsequent proton pulses withinless than 800 μs. This contribution presents concepts on the realization of amultiplexer for a 70 MeV, 100 mA proton beam with 384 Hz, 96 Hz, 24 Hz pulsesequences and 2 % duty cycle as well as developments on a multiplexer devicerealized at 45 MeV proton energy, μA peak currents and an identical timingscheme.

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