title: Absolute peak-efficiency calibration of a well-type germanium detector using multiple gamma-emitting nuclides with the "Solver" add-in in Excel™.
abstract: When calibrating absolute peak efficiency and total efficiency functions for high efficient germanium detectors, single gamma-emitting nuclides are used in general to avoid coincidence summing effects. As another approach, Blaauw developed calibration technique using multiple gamma-emitting nuclides with least-square technique (Blaauw, 1993; Blaauw and Gelsema, 2003). In the present study, we tried to calibrate efficiency functions of a well-type germanium detector based on Blaauw's approach using a home-made iteration calculation algorithm with the "Solver" add-in in Excel™.
authors.affiliation: Japan Radioisotope Association, 28-45, Honkomagome 2, Bunkyo-ku, Tokyo 113-8941, Japan. Electronic address: ishizu-hidetake@jrias.or.jp.
authors.forename: H
authors.initials: H
authors.lastname: Ishizu
authors.affiliation: Japan Radioisotope Association, 28-45, Honkomagome 2, Bunkyo-ku, Tokyo 113-8941, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Yamada
keywords: (134)Cs; (75)Se; Coincidence summing; Germanium detector; Iteration algorithm; Peak efficiency; The “Solver” add-in in Excel™