title: A source for measurement of the absolute intensities of 226Ra gamma-radiation in equilibrium with decay products.
abstract: 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.
authors.affiliation: D.I. Mendeleyer Institute for Metrology (VNIIM), St. Petersburg, Russia.
authors.forename: I A
authors.initials: IA
authors.lastname: Kharitonov
authors.forename: M A
authors.initials: MA
authors.lastname: Rasko
authors.forename: S V
authors.initials: SV
authors.lastname: Sepman
authors.forename: E E
authors.initials: EE
authors.lastname: Terechtchenko
authors.forename: A M
authors.initials: AM
authors.lastname: Hejdelman