title: Measurement of the (109)Cd half-life.
abstract: A new determination of the (109)Cd half-life was made by a time series of measurements of an aqueous sample using a re-entrant type ionisation chamber. The measurement campaign covered a period of 6 years or approximately 4.7 half-lives of (109)Cd. The resulting value of 462.1 (3) days is in good agreement with the recently published values of 462.29 (30) days and 462.3 (8) days. This new half-life determination will allow evaluators to specify a recommended value of the (109)Cd half-life making it more accurate and precise.
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK. Electronic address: andrew.fenwick@npl.co.uk.
authors.forename: A J
authors.initials: AJ
authors.lastname: Fenwick
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
authors.forename: K M
authors.initials: KM
authors.lastname: Ferreira
authors.affiliation: National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, UK.
authors.forename: S M
authors.initials: SM
authors.lastname: Collins
keywords: Cd-109; Half-life; Ionisation chamber; Nuclear data