A source for measurement of the absolute intensities of 226Ra gamma-radiation in equilibrium with decay products.
The design and production techniques of a gamma-ray spectrometric source of 226Ra in equilibrium with its daughter decay products have been developed. The radon emanation coefficient of the source did not exceed 0.1%. The 226Ra activity in the gamma-ray spectrometric source was measured relative to that in an alpha-particle spectrometric source by comparison of the intensities of the main gamma rays using a semiconductor gamma-ray spectrometer. The total uncertainty of the activity measurement results was 0.5% for a coverage factor of k = 2.
Kharitonov
I A
IA
D.I. Mendeleyer Institute for Metrology (VNIIM), St. Petersburg, Russia.
Rasko
M A
MA
Sepman
S V
SV
Terechtchenko
E E
EE
Hejdelman
A M
AM