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Precise determination of aluminium by instrumental neutron activation

Conference:

Abstract

Because of the short half-life of /sup 28/Al, the determination of aluminium by neutron activation is subject to many inaccuracies. These errors can all be made smaller by counting statistics. The transfer function from the observed number of net counts to the counting rate at the end of irradiation is modeled as a product of three processes: radioactive decay and extending and nonextending dead time. The procedure was applied to the analysis of NBS SRM 1633a Fly Ash. The mean concentration measured was 14.085% Al, with a standard deviation of the mean 0.023% Al for four determinations. The final results showed no significant imprecision beyond counting statistics. The accuracy of the method is shown by the analysis of high-purity single-crystal sapphire
Publication Date:
Jun 01, 1987
Product Type:
Conference
Report Number:
CONF-8606127-
Reference Number:
AIX-19-035071; EDB-88-091564
Resource Relation:
Journal Name: J. Radioanal. Nucl. Chem.; (Switzerland); Journal Volume: 113:1; Conference: 7. international conference on modern trends in activation analysis, Copenhagen, Denmark, 23 Jun 1986
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACTIVATION ANALYSIS; ACCURACY; ALUMINIUM; CALIBRATION STANDARDS; FLY ASH; ALUMINIUM 28; COUNTING TECHNIQUES; INTERFERING ELEMENTS; IRRADIATION PROCEDURES; SAMPLE PREPARATION; SIMULATION; TRANSFER FUNCTIONS; AEROSOL WASTES; ALUMINIUM ISOTOPES; ASHES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; ELEMENTS; FUNCTIONS; ISOTOPES; LIGHT NUCLEI; METALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; RESIDUES; STANDARDS; WASTES; 400101* - Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures
OSTI ID:
5307933
Research Organizations:
National Bureau of Standards, Gaithersburg, MD (USA)
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JRNCD
Submitting Site:
INIS
Size:
Pages: 35-42
Announcement Date:
May 13, 2001

Conference:

Citation Formats

Fleming, R F, and Lindstrom, R M. Precise determination of aluminium by instrumental neutron activation. Switzerland: N. p., 1987. Web.
Fleming, R F, & Lindstrom, R M. Precise determination of aluminium by instrumental neutron activation. Switzerland.
Fleming, R F, and Lindstrom, R M. 1987. "Precise determination of aluminium by instrumental neutron activation." Switzerland.
@misc{etde_5307933,
title = {Precise determination of aluminium by instrumental neutron activation}
author = {Fleming, R F, and Lindstrom, R M}
abstractNote = {Because of the short half-life of /sup 28/Al, the determination of aluminium by neutron activation is subject to many inaccuracies. These errors can all be made smaller by counting statistics. The transfer function from the observed number of net counts to the counting rate at the end of irradiation is modeled as a product of three processes: radioactive decay and extending and nonextending dead time. The procedure was applied to the analysis of NBS SRM 1633a Fly Ash. The mean concentration measured was 14.085% Al, with a standard deviation of the mean 0.023% Al for four determinations. The final results showed no significant imprecision beyond counting statistics. The accuracy of the method is shown by the analysis of high-purity single-crystal sapphire}
journal = {J. Radioanal. Nucl. Chem.; (Switzerland)}
volume = {113:1}
place = {Switzerland}
year = {1987}
month = {Jun}
}