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Title: Effect of combined local variations in elastic and inelastic energy losses on the morphology of tracks in ion-irradiated materials

A judicious choice of irradiation parameters and experimental methodology allowed the visualization of the tracks created by swift heavy ions in pyrochlores over the entire ion trajectories. Several peculiarities were observed: a layered structure of tracks composed of an amorphous core surrounded by a strained crystalline envelope, a change of the track diameter as a function of the ion slowing down, a loss of parallelism of tracks, a transformation from continuous to discontinuous regime, and an increasing contribution of elastic collisions at large depths. These observations are compared to the respective amount of electronic and nuclear energy losses.
Authors:
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Publication Date:
OSTI Identifier:
1088617
Report Number(s):
PNNL-SA-81738
34930; KP1704020
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Acta Materialia, 61(12):4669-4675
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
Correlation; track; morphology; with; ion; energy; loss; pyrochlores; ; Environmental Molecular Sciences Laboratory