Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS

The Extended Q-range Small-angle Neutron Scattering Diffractometer (EQ-SANS) instrument at the spallation neutron source (SNS), Oak Ridge, Tennessee, incorporates a 69 m(3) detector vessel with a vacuum system which required an upgrade with respect to performance, ease of operation, and maintenance....

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Detalles Bibliográficos
Autores principales: Stone, Christopher, Williams, Derrick, Price, Jeremy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2016
Materias:
Engineering
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5065636/
https://www.ncbi.nlm.nih.gov/pubmed/27766212
http://dx.doi.org/10.1016/j.mex.2016.09.002
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author Stone, Christopher
Williams, Derrick
Price, Jeremy
author_facet Stone, Christopher
Williams, Derrick
Price, Jeremy
author_sort Stone, Christopher
collection PubMed
description The Extended Q-range Small-angle Neutron Scattering Diffractometer (EQ-SANS) instrument at the spallation neutron source (SNS), Oak Ridge, Tennessee, incorporates a 69 m(3) detector vessel with a vacuum system which required an upgrade with respect to performance, ease of operation, and maintenance. The upgrade focused on improving pumping performance as well as optimizing system design to minimize opportunity for operational error. This upgrade provided the following practical contributions: • Reduced time required to evacuate from atmospheric pressure to 2 mTorr from 500 to 1000 min to 60–70 min; • Provided turn-key automated control with a multi-faceted interlock for personnel and machine safety.
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spelling pubmed-50656362016-10-20 Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS Stone, Christopher Williams, Derrick Price, Jeremy MethodsX Engineering The Extended Q-range Small-angle Neutron Scattering Diffractometer (EQ-SANS) instrument at the spallation neutron source (SNS), Oak Ridge, Tennessee, incorporates a 69 m(3) detector vessel with a vacuum system which required an upgrade with respect to performance, ease of operation, and maintenance. The upgrade focused on improving pumping performance as well as optimizing system design to minimize opportunity for operational error. This upgrade provided the following practical contributions: • Reduced time required to evacuate from atmospheric pressure to 2 mTorr from 500 to 1000 min to 60–70 min; • Provided turn-key automated control with a multi-faceted interlock for personnel and machine safety. Elsevier 2016-09-23 /pmc/articles/PMC5065636/ /pubmed/27766212 http://dx.doi.org/10.1016/j.mex.2016.09.002 Text en © 2016 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Engineering
Stone, Christopher
Williams, Derrick
Price, Jeremy
Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
title Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
title_full Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
title_fullStr Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
title_full_unstemmed Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
title_short Vacuum system upgrade for extended Q-range small-angle neutron scattering diffractometer (EQ-SANS) at SNS
title_sort vacuum system upgrade for extended q-range small-angle neutron scattering diffractometer (eq-sans) at sns
topic Engineering
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5065636/
https://www.ncbi.nlm.nih.gov/pubmed/27766212
http://dx.doi.org/10.1016/j.mex.2016.09.002
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