Tailoring neutron beam properties by target-moderator-reflector optimisation-Reference-Cited by-同舟云学术

Tailoring neutron beam properties by target-moderator-reflector optimisation

Published:2021-09-27 Issue:2-3 Volume:23 Page:185-200
ISSN:1477-2655
Container-title:Journal of Neutron Research
language:
Short-container-title:JNR

Author:

Zakalek Paul¹,Li Jingjing¹,Böhm Sarah²,Rücker Ulrich¹,Voigt Jörg¹,Mauerhofer Eric¹,Gutberlet Thomas¹,Brückel Thomas¹

Affiliation:

1. Jülich Centre for Neutron Science (JCNS-HBS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

2. Nukleare Entsorgung und Techniktransfer (NET), RWTH Aachen, 52062 Aachen, Germany

Abstract

Compact accelerator-driven neutron sources allow to operate multiple optimised target-moderator-reflector (TMR) units adapted to the requirements of the respective instruments. The compact design of the TMR units allows an efficient coupling of neutron production, neutron moderation and extraction, but requires a novel way of optimisation. The neutronic performance of different TMR units based on polyethylene, heavy water and a mixture of heavy and light water moderators together with Pb and Be reflectors and a borated polyethylene absorber is discussed. Extraction channels for thermal and cold neutrons are investigated regarding the energy and time spectra.

Publisher

IOS Press

Subject

Nuclear Energy and Engineering,Nuclear and High Energy Physics

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