Development of the NPL gamma-ray spectrometer NANA for traceable nuclear decay and structure studies

G Lorusso; R Shearman; P H Regan; S M Judge; S Bell; S M Collins; C Larijani; P Ivanov; S M Jerome; J D Keightley; S Lalkovski; A K Pearce; Zs Podolyak

doi:10.1016/j.apradiso.2015.12.050

Development of the NPL gamma-ray spectrometer NANA for traceable nuclear decay and structure studies

Appl Radiat Isot. 2016 Mar:109:507-511. doi: 10.1016/j.apradiso.2015.12.050. Epub 2015 Dec 19.

Authors

G Lorusso¹, R Shearman¹, P H Regan², S M Judge¹, S Bell¹, S M Collins³, C Larijani¹, P Ivanov³, S M Jerome³, J D Keightley³, S Lalkovski⁴, A K Pearce⁴, Zs Podolyak³

Affiliations

¹ National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
² 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.
³ National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.
⁴ Department of Physics, University of Surrey, Guildford GU2 7XH, UK.

PMID: 26795270
DOI: 10.1016/j.apradiso.2015.12.050

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.

Keywords: Coincidence gamma-ray spectroscopy; Electromagnetic transition rates; LaBr(3)(Ce) scintillation detectors; Nuclear structure physics.