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Issue title: UCANS-web 2020
Guest editors: David Baxter, Thomas Gutberlet, Yoshie Otake, Frédéric Ott and Xuewu Wang
Article type: Research Article
Authors: Zakalek, Paula; * | Li, Jingjinga | Böhm, Sarahb | Rücker, Ulricha | Voigt, Jörga | Mauerhofer, Erica | Gutberlet, Thomasa | Brückel, Thomasa
Affiliations: [a] Jülich Centre for Neutron Science (JCNS-HBS), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany | [b] Nukleare Entsorgung und Techniktransfer (NET), RWTH Aachen, 52062 Aachen, Germany
Correspondence: [*] Corresponding author. E-mail: [email protected].
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.
Keywords: CANS, TMR optimisation, neutrons
DOI: 10.3233/JNR-210016
Journal: Journal of Neutron Research, vol. 23, no. 2-3, pp. 185-200, 2021
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