Ta-182 sources were produced, and the disintegration rate and gamma-ra
y emission probabilities were measured as an aid in using this radionu
clide as a calibrant for HPGe detectors. Metal powders proved to be th
e most appropriate sources, and the disintegration rate was determined
with an uncertainty of less than 0.4%. Improved data with reduced unc
ertainties were also obtained for the gamma-ray emission probabilities
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