Cold-neutron depth profiling as a research tool for the study of surface oxides on metals

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DOIResolve DOI: http://doi.org/10.1139/P10-062
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TypeArticle
Journal titleCanadian Journal of Physics
ISSN1208-6045
0008-4204
Volume88
Issue10
Pages751758; # of pages: 8
AbstractA recent experiment at NIST has demonstrated that neutron depth profiling (NDP) based on the (n, a) reaction could be developed into a tool that could be routinely used for the study of passive oxides on metals. Whereas most metals are not (n, a) active, oxides grown with ¹⁷O, the only (n, a) active oxygen isotope, can be observed and tracked by this technique. Problems due to contamination of the samples by boron were encountered, but were shown to be surmountable. For our samples, the NDP facility at NIST, as it exists today, has enough flux and energy resolution to separate the a particles emitted by ¹⁷O from those emitted by ¹°B. Substantial improvement in the data collection rate, easily achievable with arrays of additional detectors, will make NDP a useful tool in the study of passive oxides.
Publication date
LanguageEnglish
AffiliationNRC Canadian Neutron Beam Centre; National Research Council Canada
Peer reviewedYes
NPARC number16945682
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Record identifier85e055ef-6a4a-40bb-9dca-b2a46a85137a
Record created2011-03-03
Record modified2016-05-09
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