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)
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}
}
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}
}