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

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

来源：Applied Radiation and Isotopes, 2016, 109: 507-511.

DOI：10.1016/j.apradiso.2015.12.050

• Coincidence gamma-ray spectroscopy
• Nuclear structure physics
• Electromagnetic transition rates
• LaBr3(Ce) scintillation detectors

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 1 MeV 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.

• 出版日期2016-3