Optimization of multi-channel neutron focusing guides for extreme sample environments
(2014) International Workshop on Neutron Optics and Detectors (NOP&D) 528. p.012006-012006- Abstract
- In this work, we present and discuss simulation results for the design of multi-channel neutron focusing guides for extreme sample environments. A single focusing guide consists of any number of supermirror-coated curved outer channels surrounding a central channel. Furthermore, a guide is separated into two sections in order to allow for extension into a sample environment. The performance of a guide is evaluated through a Monte-Carlo ray tracing simulation which is further coupled to an optimization algorithm in order to find the best possible guide for a given situation. A number of population-based algorithms have been investigated for this purpose. These include particle-swarm optimization, artificial bee colony, and differential... (More)
- In this work, we present and discuss simulation results for the design of multi-channel neutron focusing guides for extreme sample environments. A single focusing guide consists of any number of supermirror-coated curved outer channels surrounding a central channel. Furthermore, a guide is separated into two sections in order to allow for extension into a sample environment. The performance of a guide is evaluated through a Monte-Carlo ray tracing simulation which is further coupled to an optimization algorithm in order to find the best possible guide for a given situation. A number of population-based algorithms have been investigated for this purpose. These include particle-swarm optimization, artificial bee colony, and differential evolution. The performance of each algorithm and preliminary results of the design of a multi-channel neutron focusing guide using these methods are described. We found that a three-channel focusing guide offered the best performance, with a gain factor of 2.4 compared to no focusing guide, for the design scenario investigated in this work. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4665632
- author
- DiJulio, Douglas LU ; Lelievre-Berna, E. ; Courtois, P. ; Andersen, Ken LU and Bentley, Phillip LU
- organization
- publishing date
- 2014
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- International Workshop on Neutron Optics and Detectors (NOP&D 2013) 2–5 July 2013, Munich, Germany
- volume
- 528
- pages
- 012006 - 012006
- publisher
- IOP Publishing
- conference name
- International Workshop on Neutron Optics and Detectors (NOP&D)
- conference location
- Munich, Germany
- conference dates
- 2013-07-02 - 2013-07-05
- external identifiers
-
- wos:000340245000006
- scopus:84906280718
- ISSN
- 1742-6596
- 1742-6588
- DOI
- 10.1088/1742-6596/528/1/012006
- language
- English
- LU publication?
- yes
- id
- ea1cb030-0779-4057-b94b-fec859e7a7d9 (old id 4665632)
- date added to LUP
- 2016-04-01 10:53:12
- date last changed
- 2025-10-14 11:31:43
@inproceedings{ea1cb030-0779-4057-b94b-fec859e7a7d9,
abstract = {{In this work, we present and discuss simulation results for the design of multi-channel neutron focusing guides for extreme sample environments. A single focusing guide consists of any number of supermirror-coated curved outer channels surrounding a central channel. Furthermore, a guide is separated into two sections in order to allow for extension into a sample environment. The performance of a guide is evaluated through a Monte-Carlo ray tracing simulation which is further coupled to an optimization algorithm in order to find the best possible guide for a given situation. A number of population-based algorithms have been investigated for this purpose. These include particle-swarm optimization, artificial bee colony, and differential evolution. The performance of each algorithm and preliminary results of the design of a multi-channel neutron focusing guide using these methods are described. We found that a three-channel focusing guide offered the best performance, with a gain factor of 2.4 compared to no focusing guide, for the design scenario investigated in this work.}},
author = {{DiJulio, Douglas and Lelievre-Berna, E. and Courtois, P. and Andersen, Ken and Bentley, Phillip}},
booktitle = {{International Workshop on Neutron Optics and Detectors (NOP&D 2013) 2–5 July 2013, Munich, Germany}},
issn = {{1742-6596}},
language = {{eng}},
pages = {{012006--012006}},
publisher = {{IOP Publishing}},
title = {{Optimization of multi-channel neutron focusing guides for extreme sample environments}},
url = {{http://dx.doi.org/10.1088/1742-6596/528/1/012006}},
doi = {{10.1088/1742-6596/528/1/012006}},
volume = {{528}},
year = {{2014}},
}