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Title: In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects

Abstract

Materials designed for nuclear reactors undergo microstructural changes resulting from a combination of several environmental factors, including neutron irradiation damage, gas accumulation and elevated temperatures. Typical ion beam irradiation experiments designed for simulating a neutron irradiation environment involve irradiating the sample with a single ion beam and subsequent characterization of the resulting microstructure, often by transmission electron microscopy (TEM). This method does not allow for examination of microstructural effects due to simultaneous gas accumulation and displacement cascade damage, which occurs in a reactor. Sandia’s in situ ion irradiation TEM (I3TEM) offers the unique ability to observe microstructural changes due to irradiation damage caused by concurrent multi-beam ion irradiation in real time. This allows for time-dependent microstructure analysis. A plethora of additional in situ stages can be coupled with these experiments, e.g., for more accurately simulating defect kinetics at elevated reactor temperatures. This work outlines experiments showing synergistic effects in Au using in situ ion irradiation with various combinations of helium, deuterium and Au ions, as well as some initial work on materials utilized in tritium-producing burnable absorber rods (TPBARs): zirconium alloys and LiAlO2.

Authors:
; ; ; ; ; ; ; ; ORCiD logo
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1422341
Report Number(s):
PNNL-SA-131591
Journal ID: ISSN 1996-1944; MATEG9; MB0503000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Materials
Additional Journal Information:
Journal Volume: 10; Journal Issue: 12; Journal ID: ISSN 1996-1944
Publisher:
MDPI
Country of Publication:
United States
Language:
English

Citation Formats

Taylor, Caitlin, Bufford, Daniel, Muntifering, Brittany, Senor, David, Steckbeck, Mackenzie, Davis, Justin, Doyle, Barney, Buller, Daniel, and Hattar, Khalid. In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects. United States: N. p., 2017. Web. doi:10.3390/ma10101148.
Taylor, Caitlin, Bufford, Daniel, Muntifering, Brittany, Senor, David, Steckbeck, Mackenzie, Davis, Justin, Doyle, Barney, Buller, Daniel, & Hattar, Khalid. In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects. United States. doi:10.3390/ma10101148.
Taylor, Caitlin, Bufford, Daniel, Muntifering, Brittany, Senor, David, Steckbeck, Mackenzie, Davis, Justin, Doyle, Barney, Buller, Daniel, and Hattar, Khalid. Fri . "In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects". United States. doi:10.3390/ma10101148.
@article{osti_1422341,
title = {In Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects},
author = {Taylor, Caitlin and Bufford, Daniel and Muntifering, Brittany and Senor, David and Steckbeck, Mackenzie and Davis, Justin and Doyle, Barney and Buller, Daniel and Hattar, Khalid},
abstractNote = {Materials designed for nuclear reactors undergo microstructural changes resulting from a combination of several environmental factors, including neutron irradiation damage, gas accumulation and elevated temperatures. Typical ion beam irradiation experiments designed for simulating a neutron irradiation environment involve irradiating the sample with a single ion beam and subsequent characterization of the resulting microstructure, often by transmission electron microscopy (TEM). This method does not allow for examination of microstructural effects due to simultaneous gas accumulation and displacement cascade damage, which occurs in a reactor. Sandia’s in situ ion irradiation TEM (I3TEM) offers the unique ability to observe microstructural changes due to irradiation damage caused by concurrent multi-beam ion irradiation in real time. This allows for time-dependent microstructure analysis. A plethora of additional in situ stages can be coupled with these experiments, e.g., for more accurately simulating defect kinetics at elevated reactor temperatures. This work outlines experiments showing synergistic effects in Au using in situ ion irradiation with various combinations of helium, deuterium and Au ions, as well as some initial work on materials utilized in tritium-producing burnable absorber rods (TPBARs): zirconium alloys and LiAlO2.},
doi = {10.3390/ma10101148},
journal = {Materials},
issn = {1996-1944},
number = 12,
volume = 10,
place = {United States},
year = {2017},
month = {9}
}

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