2021
1.
Zakalek, Paul; Li, Jingjing; Böhm, Sarah; Rücker, Ulrich; Voigt, Jörg; Mauerhofer, Eric; Gutberlet, Thomas; Brückel, Thomas
Tailoring neutron beam properties by target-moderator-reflector optimisation Journal Article
In: Journal of Neutron Research, vol. 23, pp. 185–200, 2021, ISSN: 1477-2655.
Abstract | BibTeX | Tags: CANS, NEUTRONS, TMR optimisation
@article{Zakalek2021,
title = {Tailoring neutron beam properties by target-moderator-reflector optimisation},
author = {Paul Zakalek and Jingjing Li and Sarah Böhm and Ulrich Rücker and Jörg Voigt and Eric Mauerhofer and Thomas Gutberlet and Thomas Brückel},
issn = {1477-2655},
year = {2021},
date = {2021-01-01},
journal = {Journal of Neutron Research},
volume = {23},
pages = {185–200},
publisher = {IOS Press},
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, NEUTRONS, TMR optimisation},
pubstate = {published},
tppubtype = {article}
}
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.