title: Measurement of liquid scintillation sources of (210)Pb obtained from (222)Rn decay.
abstract: Liquid scintillation samples were filled with (222)Rn and the activity was measured with good precision after reaching the secular equilibrium with the progeny (218)Po, (214)Pb, (214)Bi and (214)Po. After decay of most of (222)Rn activity, the samples contain (210)Pb and progeny. The activities of (210)Pb and progeny can be calculated as a function of time using the initial (222)Rn activity. The samples were measured in a TDCR counter and the experimentally determined counting efficiencies are in accordance with previously published results.
authors.affiliation: Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest. 30, Reactorului St., Magurele, Ilfov county, POB MG-6, RO 0-77125, Romania. Electronic address: antohe@nipne.ro.
authors.forename: A
authors.initials: A
authors.lastname: Antohe
authors.affiliation: Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest. 30, Reactorului St., Magurele, Ilfov county, POB MG-6, RO 0-77125, Romania.
authors.forename: M
authors.initials: M
authors.lastname: Sahagia
authors.affiliation: Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest. 30, Reactorului St., Magurele, Ilfov county, POB MG-6, RO 0-77125, Romania.
authors.forename: A
authors.initials: A
authors.lastname: Luca
authors.affiliation: Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest. 30, Reactorului St., Magurele, Ilfov county, POB MG-6, RO 0-77125, Romania.
authors.forename: M-R
authors.initials: MR
authors.lastname: Ioan
authors.affiliation: Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, IFIN-HH, Bucharest. 30, Reactorului St., Magurele, Ilfov county, POB MG-6, RO 0-77125, Romania.
authors.forename: C
authors.initials: C
authors.lastname: Ivan
keywords: (210)Pb–(210)Po radioactive chain; Liquid scintillation counting; Standard source