[Neutron] Webinar on 27 June: "High Current Accelerator-driven Neutron Sources" by Paul Zakalek

[Karin Griewatsch]

Dear colleagues,

we look forward to the KFN Neutron Webinar by Paul Zakalek and hope to 
"see" you there:

Friday, 27 June 2025, 11:00 - 12:00 CET


    High Current Accelerator-driven Neutron Sources - The HBS project
    for a next generation neutron facility


      Dr. Paul Zakalek

JCNS-2/JCNS-HBS: Head of Department for High Brilliance Neutron Source 
Project (HBS)
Instrumentation Prize for Neutron Research awardee 2024

Zoom-Link: 
https://fz-juelich-de.zoom.us/j/62632539070?pwd=dq6ZvYAVz3uO895vb4NefzAvyBGDba.1
Meeting-ID: 626 3253 9070
Passcode: 113944

Accelerator-driven neutron sources offer a cost-effective alternative to 
traditional sources such as fission reactors and spallation sources. The 
advent of high-current proton accelerator systems has given rise to a 
new class of neutron facility, termed High-Current Accelerator-driven 
Neutron Sources (HiCANS), which has unique properties and capabilities.

The High-Brilliance Neutron Source (HBS, see 
https://hbs.fz-juelich.de/en) project at Forschungszentrum Jülich is 
developing a HiCANS facility. It uses a linear accelerator with a pulsed 
proton beam and a peak current of up to 100 mA to provide customised 
proton pulses at variable frequencies to optimised target stations. 
These target stations are more compact than spallation neutron sources 
because low-energy nuclear reactions release neutrons from a high-power 
tantalum target. This allows for efficient neutron production, 
moderation and extraction, enabling competitive neutron instrument 
performance.

A detailed Technical Design Report (TDR) has been published describing 
all the relevant components, from the accelerator and target to the 
moderators and instruments. It demonstrates the potential of a national 
neutron source facility with up to 24 instruments for a variety of 
applications. A target station prototype was built at a 45 MeV cyclotron 
and brought into operation producing first neutrons in December 2022. 
Experiments demonstrated the accessibility and flexibility of this new 
type of source and allowed the expected performance to be evaluated. The 
first stage, HBS-I, is planned to have a proton energy of 20 MeV, a 
neutron yield of 10¹⁵ n/s, and five instruments at a single target 
station: SANS, a reflectometer, a diffractometer, an imaging instrument 
and a PGNAA instrument.

Paul Zakalek will present the current status of the High-Brilliance 
Neutron Source (HBS) HiCANS project, as well as the next steps and 
milestones for this next-generation neutron source.

The lecture will be recorded, and there is information on data protection at
https://www.sni-portal.de/en/files/kfn-neutron-webinar-data-protection

On the website
https://www.sni-portal.de/en/user-committees/committee-research-with-neutrons/neutron-webinar
you will find announcements of upcoming lectures and the link for the 
webinar mailing list.

Kind regards,

Frank Schreiber and Thomas Gutberlet (webinar organzation)
Mirijam Zobel (KFN chair)
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