Intercascade annihilation of freely migrating defects

A. Iwase; L. E. Rehn; P. M. Baldo; L. Funk

doi:10.1063/1.114676

Intercascade annihilation of freely migrating defects

A. Iwase, L. E. Rehn, P. M. Baldo, L. Funk

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Abstract

To characterize putative interactions between freely migrating defects (FMD) and remnants of energetic displacement cascades, radiation-induced segregation (RIS) in Cu-1 at. % Au was measured by Rutherford backscattering during separate and simultaneous irradiation at 400°C with 1.5 MeV He and 800 keV Cu ions. The strong RIS observed during only He irradiation was greatly reduced under simultaneous Cu irradiation at approximately the same displacements per atom rate; increasing the Cu flux by a factor of 5 suppressed the RIS from the He beam almost completely. The suppression of RIS at 400°C disappeared quickly when the Cu irradiation ceased. These results demonstrate that a transient population of interstitial and/or vacancy clusters from the Cu irradiation greatly reduces the survival rate of FMD produced by the He.

Original language	English
Pages (from-to)	229
Number of pages	1
Journal	Applied Physics Letters
Volume	67
DOIs	https://doi.org/10.1063/1.114676
State	Published - 1995

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@article{909634d010154fc4a9eae587de86ed8b,

title = "Intercascade annihilation of freely migrating defects",

abstract = "To characterize putative interactions between freely migrating defects (FMD) and remnants of energetic displacement cascades, radiation-induced segregation (RIS) in Cu-1 at. \% Au was measured by Rutherford backscattering during separate and simultaneous irradiation at 400°C with 1.5 MeV He and 800 keV Cu ions. The strong RIS observed during only He irradiation was greatly reduced under simultaneous Cu irradiation at approximately the same displacements per atom rate; increasing the Cu flux by a factor of 5 suppressed the RIS from the He beam almost completely. The suppression of RIS at 400°C disappeared quickly when the Cu irradiation ceased. These results demonstrate that a transient population of interstitial and/or vacancy clusters from the Cu irradiation greatly reduces the survival rate of FMD produced by the He.",

author = "A. Iwase and Rehn, \{L. E.\} and Baldo, \{P. M.\} and L. Funk",

year = "1995",

doi = "10.1063/1.114676",

language = "English",

volume = "67",

pages = "229",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Intercascade annihilation of freely migrating defects

AU - Iwase, A.

AU - Rehn, L. E.

AU - Baldo, P. M.

AU - Funk, L.

PY - 1995

Y1 - 1995

N2 - To characterize putative interactions between freely migrating defects (FMD) and remnants of energetic displacement cascades, radiation-induced segregation (RIS) in Cu-1 at. % Au was measured by Rutherford backscattering during separate and simultaneous irradiation at 400°C with 1.5 MeV He and 800 keV Cu ions. The strong RIS observed during only He irradiation was greatly reduced under simultaneous Cu irradiation at approximately the same displacements per atom rate; increasing the Cu flux by a factor of 5 suppressed the RIS from the He beam almost completely. The suppression of RIS at 400°C disappeared quickly when the Cu irradiation ceased. These results demonstrate that a transient population of interstitial and/or vacancy clusters from the Cu irradiation greatly reduces the survival rate of FMD produced by the He.

AB - To characterize putative interactions between freely migrating defects (FMD) and remnants of energetic displacement cascades, radiation-induced segregation (RIS) in Cu-1 at. % Au was measured by Rutherford backscattering during separate and simultaneous irradiation at 400°C with 1.5 MeV He and 800 keV Cu ions. The strong RIS observed during only He irradiation was greatly reduced under simultaneous Cu irradiation at approximately the same displacements per atom rate; increasing the Cu flux by a factor of 5 suppressed the RIS from the He beam almost completely. The suppression of RIS at 400°C disappeared quickly when the Cu irradiation ceased. These results demonstrate that a transient population of interstitial and/or vacancy clusters from the Cu irradiation greatly reduces the survival rate of FMD produced by the He.

UR - https://www.scopus.com/pages/publications/36449001609

U2 - 10.1063/1.114676

DO - 10.1063/1.114676

M3 - Article

AN - SCOPUS:36449001609

SN - 0003-6951

VL - 67

SP - 229

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Intercascade annihilation of freely migrating defects

Abstract

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