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Multiscale modeling of the low-temperature electron irradiation of beryllium
Presented are the methodology and the results of the multiscale modeling of radiation defects primary production and time evolution for 2.5 MeV cryogenic (77 K) irradiation of highly deformed to ~ 10¹² cm⁻² dislocations density beryllium at the NSC KIPT electron linac ELIAS. It is shown that the app...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2018
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| Series: | Вопросы атомной науки и техники |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/137875 |
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| Summary: | Presented are the methodology and the results of the multiscale modeling of radiation defects primary production and time evolution for 2.5 MeV cryogenic (77 K) irradiation of highly deformed to ~ 10¹² cm⁻² dislocations density beryllium at the NSC KIPT electron linac ELIAS. It is shown that the application of low-temperature e⁻-irradiation of prestrained targets allows efficient suppression of vacancy-interstitial recombination due to escape of freely mi-grating self-interstitial atoms to dislocation sinks and results in abnormally high (~ 10⁻³ per atom) vacancy yield comparable with that of primarily produced Frenkel pairs at a reasonable (≤10³h)e⁻-beam exposure. |
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