High-Resolution Three-Axis Neutron Diffractometer for Microstructure Investigations of Polycrystalline Materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00572671" target="_blank" >RIV/61389005:_____/23:00572671 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.prostr.2022.12.245" target="_blank" >https://doi.org/10.1016/j.prostr.2022.12.245</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.245" target="_blank" >10.1016/j.prostr.2022.12.245</a>

Result language

angličtina

Original language name

High-Resolution Three-Axis Neutron Diffractometer for Microstructure Investigations of Polycrystalline Materials

Original language description

Recently, focusing 3-axis diffractometer set-up equipped with the bent perfect crystal (BPC) monochromator and analyzer which has offered the sensitivity in determination of strains Δd/d < 10-4in polycrystalline materials, has been introduced. The resolution determined by FWHM of the diffraction profiles is about one order of magnitude higher with respect to that of conventional 2-axis neutron strain/stress scanners. Therefore, the new set-up also offers possibility of line profile analysis for relatively large irradiated gauge volumes and reasonable counting times, because the 3-axis set-up exploits focusing in real and momentum space simultaneously. As it is demonstrated on several samples, the 3-axis diffractometer can be successfully used in the strain/stress measurements on samples exposed to an external load, studies of diffraction profile affected by plastic deformation, determination of phases having very close values of the lattice spacings etc. The analysis is carried out by rocking the BPC analyzer and the neutron signal is registered by a point detector.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

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

Project

<a href="/en/project/LM2023057" target="_blank" >LM2023057: European Spallation Source - participation of the Czech Republic</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Article name in the collection

Procedia Structural Integrity

ISBN

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ISSN

2452-3216

e-ISSN

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Number of pages

5

Pages from-to

119-123

Publisher name

Elsevier B. V.

Place of publication

Amsterdam

Event location

Brno

Event date

Sep 12, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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