Ātro ksenona jonu izraisītās struktūras un mikromehānisko īpašību izmaiņas LiF kristālos

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RESEARCH PRODUCT

Ātro ksenona jonu izraisītās struktūras un mikromehānisko īpašību izmaiņas LiF kristālos

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Pētīta treku veidošanās LiF kristālos, kas apstaroti ar ātrajiem Xe joniem ar specifisko enerģiju 11,1 MeV uz nuklonu fluenču 107 -1010 joni/cm2 apgabalā, izmantojot dislokāciju kustīguma, atomspēka un optiskās mikroskopijas metodes. Dislokācijas un treki tika vizualizēti selektīvas ķīmiskās kodināšanas ceļā. Fluencei pārsniedzot 107 joni/cm2 tika novērota dislokāciju kustīguma samazināšanās uz apstarotās virsmas. Tika konstatēti pārtraukumi treku serdes struktūrā, kuri samazina treku efektivitāti dislokāciju bremzēšanā. Rezultāti analizēti, izmantojot Orovana modeli dislokāciju mijiedarbībai ar trekiem kā spēcīgiem šķēršļiem. Iegūtie rezultāti parāda dislokāciju kustīguma metodes priekšrocības treka serdes defektu diagnosticēšanai zemo fluenču diapazonā. Atslēgas vārdi: litija fluorīds, ātrie joni, treku kodināšana, dislokācijas.

year	journal	country	edition	language
2008-01-01

https://dspace.lu.lv/dspace/handle/7/17627

PEPhysical Sciences and Engineering
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