Neutron optics concept for the materials engineering diffractometer at the ESS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F16%3A00485609" target="_blank" >RIV/61389005:_____/16:00485609 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/746/1/012011" target="_blank" >http://dx.doi.org/10.1088/1742-6596/746/1/012011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/746/1/012011" target="_blank" >10.1088/1742-6596/746/1/012011</a>

Result language

angličtina

Original language name

Neutron optics concept for the materials engineering diffractometer at the ESS

Original language description

The Beamline for European Materials Engineering Research (BEER) has been recently proposed to be built at the European Spallation Source (ESS). The presented concept of neutron delivery optics for this instrument addresses the problems of bi-spectral beam extraction from a small moderator, optimization of neutron guides profile for long-range neutron transport and focusing at the sample under various constraints. They include free space before and after the guides, a narrow guide section with gaps for choppers, closing of direct line of sight and cost reduction by optimization of the guides cross-section and coating. A system of slits and exchangeable focusing optics is proposed in order to match various wavelength resolution options provided by the pulse shaping and modulation choppers, which permits to efficiently trade resolution for intensity in a wide range. Simulated performance characteristics such as brilliance transfer ratio are complemented by the analysis of the histories of 'useful' neutrons obtained by back tracing neutrons hitting the sample, which helps to optimize some of the neutron guide parameters such as supermirror coating.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/LM2015048" target="_blank" >LM2015048: European Spallation Source – participation of the Czech Republic</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

journal of physics: Conference series

ISBN

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ISSN

1742-6588

e-ISSN

—

Number of pages

8

Pages from-to

—

Publisher name

IOP Publishing Ltd.

Place of publication

Bristol

Event location

Zaragoza

Event date

Aug 30, 2016

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000409470900011