title: Development of the NPL gamma-ray spectrometer NANA for traceable nuclear decay and structure studies.
abstract: We present a brief report on the progress towards the construction of the National Nuclear Array (NANA), a gamma-ray coincidence spectrometer for discrete-line nuclear structure and decay measurements. The proposed spectrometer will combine a gamma-ray energy resolution of approximately 3% at 1MeV with sub-nanosecond timing discrimination between successive gamma rays in mutually coincident decay cascades. We also review a number of recent measurements using coincidence fast-timing gamma-ray spectroscopy for nuclear structure studies, which have helped to inform the design criteria for the NANA spectrometer.
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: G
authors.initials: G
authors.lastname: Lorusso
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: R
authors.initials: R
authors.lastname: Shearman
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK. Electronic address: P.Regan@surrey.ac.uk.
authors.forename: P H
authors.initials: PH
authors.lastname: Regan
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: S M
authors.initials: SM
authors.lastname: Judge
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: S
authors.initials: S
authors.lastname: Bell
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
authors.forename: S M
authors.initials: SM
authors.lastname: Collins
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: C
authors.initials: C
authors.lastname: Larijani
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
authors.forename: P
authors.initials: P
authors.lastname: Ivanov
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
authors.forename: S M
authors.initials: SM
authors.lastname: Jerome
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
authors.forename: J D
authors.initials: JD
authors.lastname: Keightley
authors.affiliation: Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: S
authors.initials: S
authors.lastname: Lalkovski
authors.affiliation: Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
authors.forename: A K
authors.initials: AK
authors.lastname: Pearce
authors.affiliation: National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
authors.forename: Zs
authors.initials: Z
authors.lastname: Podolyak
keywords: Coincidence gamma-ray spectroscopy; Electromagnetic transition rates; LaBr(3)(Ce) scintillation detectors; Nuclear structure physics