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GEOMETRICAL FACTORS IN THE NEUTRON ACTIVATION ANALYSIS OF ARCHAEOLOGICAL SPECIMENS
Author(s) -
WARREN S. E.
Publication year - 1973
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/j.1475-4754.1973.tb00079.x
Subject(s) - neutron activation analysis , sample (material) , neutron , gamma ray spectrometry , elemental analysis , neutron activation , semiconductor detector , detector , materials science , germanium , archaeology , lithium (medication) , gamma spectroscopy , mineralogy , geology , nuclear physics , radiochemistry , physics , optics , chemistry , metallurgy , geography , thermodynamics , medicine , organic chemistry , endocrinology , silicon
In the neutron activation analysis of museum specimens, for which sampling is not permitted, corrections must be applied to measured activities to take into account the sample shape and its position relative to the detector. Correction factors are derived for samples of cylindrical shape such as segmented faience beads and a model technique is suggested for those of irregular shape such as flint and obsidian implements. These techniques used in gamma‐ray spectrometry with lithium‐drifted germanium detectors enable elemental concentrations to be determined from the measured count rates.