Characterization of helium implanted Fe-Cr alloys by means of positron annihilation methods

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10288538" target="_blank" >RIV/00216208:11320/14:10288538 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jnucmat.2013.10.039" target="_blank" >http://dx.doi.org/10.1016/j.jnucmat.2013.10.039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnucmat.2013.10.039" target="_blank" >10.1016/j.jnucmat.2013.10.039</a>

Result language

angličtina

Original language name

Characterization of helium implanted Fe-Cr alloys by means of positron annihilation methods

Original language description

Doppler broadening spectroscopy and positron lifetime measurements have been used for the characterization of radiation damage and helium effects on the microstructure of the ferritic Fe-Cr alloy with 12% (wt.) chromium content. Severe displacement damage (up to 100 dpa) was introduced by the implantation of helium ions with fluence 1.25 x 10(18) cm(-2). The temperature during the implantation process was below 80 degrees C. Positron lifetime spectra obtained from slow positron beam experiments confirmed the presence of large voids in the region of the displacement peak. Further investigation by Doppler broadening spectroscopy in the conventional and slow positron beam setups revealed a strong retention of helium in this region, which contributes to the broadening of the momentum peak and at the same time it reduces the positron lifetime in radiation-induced vacancy clusters. The measured Doppler broadened profiles of the implanted materials reasonably correspond with the calculated da

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Journal of Nuclear Materials

ISSN

0022-3115

e-ISSN

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Volume of the periodical

450

Issue of the periodical within the volume

1-3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

54-58

UT code for WoS article

000337862600009

EID of the result in the Scopus database

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