title: The efficiency variation method for 4pibeta-gamma coincidence counting by ink-jet printing.
abstract: In order to vary the counting efficiencies in the 4pibeta-gamma coincidence extrapolation technique, a radioactive source was coated directly with varying amounts of an electrical conducting pigment using an ink-jet printer. This method can be used to efficiently prepare the multiple sources needed to generate efficiency extrapolation curves, and was successfully applied to the standardization of a (54)Mn source.
authors.affiliation: National Metrology Institute of Japan, Central 2, 1-1-1 Umezono, Tsukuba, Japan. yss.sato@aist.go.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Yamada
authors.forename: T
authors.initials: T
authors.lastname: Hata
authors.forename: K
authors.initials: K
authors.lastname: Moriyama
authors.forename: A
authors.initials: A
authors.lastname: Yunoki
authors.forename: Y
authors.initials: Y
authors.lastname: Hino