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Quasi Elastic Neutron Scattering model library [PDF]
EPJ Web of Conferences, 2023 This paper reports on the development of a collection of dynamical models of one-dimensional peak profile functions used to fit dynamic structure factors S (Q, ħω) of Quasi Elastic Neutron Scattering (QENS) data.
Durniak Céline +5 more
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Modelling of The New Engineering Diffractometer eMAP at ISIS Target Station 2 [PDF]
EPJ Web of Conferences, 2023 eMAP is a new proposed high flux medium-resolution time-of-flight engineering diffractometer that will be built at ISIS Target Station 2. Monte Carlo simulations were performed to optimise the neutron guide to maximise brilliance transfer.
Lee Tung Lik +4 more
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SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis [PDF]
EPJ Web of Conferences, 2022 SHERPA is a proposed quasielastic neutron spectrometer with polarisation analysis, intended to replace the ageing Iris instrument at the ISIS neutron and muon source. In this paper we present a concept of the instrument along with Monte-Carlo simulations
Nemkovski Kirill +5 more
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Design and implementation of water-cooled tuning control system for BNCT
He jishu, 2021 BackgroundThe radio frequency quadrupole field (RFQ) acceleration cavity in the boron neutron capture therapy (BNCT) experimental device has a characteristic of frequency-selectivity.
LIANG Shaoxing +4 more
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Neutron imaging of an operational dilution refrigerator
Scientific Reports, 2022 The invention of the 3He/4He dilution refrigerator opened a new chapter in experimental ultra-low temperature physics. Dilution refrigerators became essential for providing ultra-low temperature environments for nuclear demagnetisation experiments ...
C. R. Lawson +4 more
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Materials & Design, 2022 The effectiveness of small-bubble gas injection to mitigate cavitation-induced erosion damage and decrease strain in Spallation Neutron Source (SNS) target vessels was characterized using photography, laser-line scanning, and in-situ vessel strain ...
David A. McClintock +11 more
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Optimal design of the position sensitive fast neutron detector based on GEM
He jishu, 2021 BackgroundThe GEM (gas electron multiplier) detector with polyethylene conversion layer has the performance of fast neutron detection, high timporal resolution and spatial resolution.
WEI Yangdong +9 more
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Discovery of new neutron-moderating materials at ISIS Neutron and Muon Source [PDF]
EPJ Web of Conferences, 2020 In this paper, the possibility of performing a comprehensive neutronic characterization of new materials for neutron moderation at the ISIS Neutron and Muon Source using two of its instruments, VESUVIO and TOSCA, will be discussed.
Škoro Goran +4 more
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Imaging low-energy positron beams in real-time with unprecedented resolution
Scientific Reports, 2023 Particle beams focused to micrometer-sized spots play a crucial role in forefront research using low-energy positrons. Their expedient and wide application, however, requires highly-resolved, fast beam diagnostics. We have developed two different methods
Michael Berghold +4 more
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A femtosecond neutron source [PDF]
Applied Physics B, 2006 The possibility to use the ultrashort ion bunches produced by circularly polarized laser pulses to drive a source of fusion neutrons with sub-optical cycle duration is discussed. A two-side irradiation of a thin foil deuterated target produces two countermoving ion bunches, whose collision leads to an ultrashort neutron burst.
Macchi, A
openaire +2 more sources