Monte-Carlo ray-tracing studies of multiplexed prismatic graphite analyzers for the cold-neutron triple-axis spectrometer at the High Flux Isotope Reactor

Fuente: arXiv
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Auteurs principaux: Desai, Adit S., Williams, Travis J., Daum, Marcus, Sala, Gabriele, Aczel, Adam A., Granroth, Garrett E., Mourigal, Martin
Format: Preprint
Publié: 2023
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author Desai, Adit S.
Williams, Travis J.
Daum, Marcus
Sala, Gabriele
Aczel, Adam A.
Granroth, Garrett E.
Mourigal, Martin
author_facet Desai, Adit S.
Williams, Travis J.
Daum, Marcus
Sala, Gabriele
Aczel, Adam A.
Granroth, Garrett E.
Mourigal, Martin
contents A modern cold triple-axis spectrometer to study quantum condensed matter systems is planned for the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory. Here, we describe the conceptual principles and design of a secondary spectrometer using a multiplexed, prismatic analyzer system relying on graphite crystals and inspired by the successful implementation of the Continuous Angle Multiple Energy Analysis (CAMEA) spectrometers at the Paul Scherrer Institute. This project is currently known as MANTA for Multi-analyzer Neutron Triple-Axis. We report Monte-Carlo ray-tracing simulations on a simple but realistic sample scattering kernel to further illustrate the prismatic analyzer concept's workings, calibration, and performance. Then, we introduce a new statistical analysis approach based on the prismatic analyzer concept to improve the number of final energies measured on the spectrometer. We also study possible evolutions in the CAMEA design relevant for MANTA.
format Preprint
id arxiv_https___arxiv_org_abs_2312_03233
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Monte-Carlo ray-tracing studies of multiplexed prismatic graphite analyzers for the cold-neutron triple-axis spectrometer at the High Flux Isotope Reactor
Desai, Adit S.
Williams, Travis J.
Daum, Marcus
Sala, Gabriele
Aczel, Adam A.
Granroth, Garrett E.
Mourigal, Martin
Instrumentation and Detectors
Materials Science
Strongly Correlated Electrons
A modern cold triple-axis spectrometer to study quantum condensed matter systems is planned for the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory. Here, we describe the conceptual principles and design of a secondary spectrometer using a multiplexed, prismatic analyzer system relying on graphite crystals and inspired by the successful implementation of the Continuous Angle Multiple Energy Analysis (CAMEA) spectrometers at the Paul Scherrer Institute. This project is currently known as MANTA for Multi-analyzer Neutron Triple-Axis. We report Monte-Carlo ray-tracing simulations on a simple but realistic sample scattering kernel to further illustrate the prismatic analyzer concept's workings, calibration, and performance. Then, we introduce a new statistical analysis approach based on the prismatic analyzer concept to improve the number of final energies measured on the spectrometer. We also study possible evolutions in the CAMEA design relevant for MANTA.
title Monte-Carlo ray-tracing studies of multiplexed prismatic graphite analyzers for the cold-neutron triple-axis spectrometer at the High Flux Isotope Reactor
topic Instrumentation and Detectors
Materials Science
Strongly Correlated Electrons
url https://arxiv.org/abs/2312.03233