Development of the NPL gamma-ray spectrometer NANA for traceable nuclear decay and structure studies. (March 2016)

• Record Type: Journal Article
• Authors: 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
• Is Part Of: Applied radiation and isotopes. Volume 109(2016:Mar.)
• Page Start: 507
• Page End: 511
• Publication Date: 2016-03
• Subjects: Coincidence gamma-ray spectroscopy -- Nuclear structure physics -- Electromagnetic transition rates -- LaBr3(Ce) scintillation detectors; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2015.12.050
• Languages: English
• ISSNs: 0969-8043

Abstract

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 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. Highlights: Design of gamma-ray spectrometer for radioactivity standardizations is presented. Commissioning of digitized, 1 GHz data acquisition system for NANA array. Overview of LaBr3 spectroscopy in nuclear decay studies worldwide given. Effect of 138 La internal radioactivity as a source of background are discussed.