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Nondestructive neutron activation analysis of silicon carbide

Abstract

Instrumentel neutron activation analysis was used to determine trace constituents in silicon carbide. Four commercial powders of different origin, an NBS reference material, and a single crystal were characterized. A total of 36 activation species were identified nondestructively by high resolution gamma spectrometry; quantitative results are given for 12 of the more predominant elements. The limitations of the method for certain elements are discussed. Consideration is given to the depression of the neutron flux by impurities with large neutron absorption cross sections. Radiation fields from the various specimens were estimated assuming all radionuclides have reached their saturation activities. (auth)
Publication Date:
Oct 15, 1973
Product Type:
Technical Report
Report Number:
AECL-4581
Reference Number:
NSA-29-015205
Subject:
N40110* -Chemistry-Analytical & Separations Chemistry- Activation & Nuclear Reaction Procedures; ANTIMONY; ACTIVATION ANALYSIS; CHROMIUM; COBALT; HAFNIUM; IRON; LANTHANUM; MANGANESE; SCANDIUM; SILICON CARBIDES; SODIUM- - ACTIVATION ANALYSIS; TITANIUM; VANADIUM; ZIRCONIUM; GAMMA SPECTROSCOPY; IMPURITIES; NEUTRON REACTIONS; NONDESTRUCTIVE ANALYSIS; POWDERS; QUANTITATIVE CHEMICAL ANALYSIS
Sponsoring Organizations:
Sponsor not identified
OSTI ID:
4936661
Research Organizations:
Atomic Energy of Canada Ltd., Pinawa, Manitoba (Canada). Whiteshell Nuclear Research Establishment
Country of Origin:
Canada
Language:
English
Submitting Site:
DTIE
Size:
23 p.
Announcement Date:
Mar 16, 2013

Citation Formats

Vandergraaf, T. T., and Wikjord, A. G. Nondestructive neutron activation analysis of silicon carbide. Canada: N. p., 1973. Web.
Vandergraaf, T. T., & Wikjord, A. G. Nondestructive neutron activation analysis of silicon carbide. Canada.
Vandergraaf, T. T., and Wikjord, A. G. 1973. "Nondestructive neutron activation analysis of silicon carbide." Canada.
@misc{etde_4936661,
title = {Nondestructive neutron activation analysis of silicon carbide}
author = {Vandergraaf, T. T., and Wikjord, A. G.}
abstractNote = {Instrumentel neutron activation analysis was used to determine trace constituents in silicon carbide. Four commercial powders of different origin, an NBS reference material, and a single crystal were characterized. A total of 36 activation species were identified nondestructively by high resolution gamma spectrometry; quantitative results are given for 12 of the more predominant elements. The limitations of the method for certain elements are discussed. Consideration is given to the depression of the neutron flux by impurities with large neutron absorption cross sections. Radiation fields from the various specimens were estimated assuming all radionuclides have reached their saturation activities. (auth)}
place = {Canada}
year = {1973}
month = {Oct}
}