beta-decay spectroscopy of nuclei far from stability can provide powerful insight into a broad variety of topics in nuclear science, ranging from exotic nuclear structure phenomena, stellar nucleosynthesis processes, and applied topics such as quantifying "decay heat" discrepancies for advanced nuclear fuel cycles. Neutronrich nuclei approaching the drip-line are difficult to access experimentally, leaving many key examples largely under studied. The CARIBU radioactive beam facility at Argonne National Laboratory exploits spontaneous fission of Cf-252 in production of such beams. The X-Array and SATURN decay station have been commissioned to perform detailed decay spectroscopy of low-energy CARIBU beams. An extended science campaign was started during 2015; with projects investigating nuclear shape changes, collective octupole vibrations, beta-delayed neutron emission, and decay-scheme properties which could explain the reactor antineutrino puzzle. In this article we review the current status of the setup, update on the first results and recent hardware upgrades, and look forward to future possibilities.
Recent advances in beta-decay spectroscopy at CARIBU / A.J. Mitchell, P. Copp, G. Savard, C.J. Lister, G.J. Lane, M.P. Carpenter, J.A. Clark, S. Zhu, A.D. Ayangeakaa, S. Bottoni, T.B. Brown, P. Chowdhury, T.W. Chillery, H.M. David, D.J. Hartley, E. Heckmaier, R.V.F. Janssens, K. Kolos, F.G. Kondev, T. Lauritsen, E.A. Mccutchan, E.B. Norman, S. Padgett, N.D. Scielzo, D. Seweryniak, M.L. Smith, G.L. Wilson. - In: EPJ WEB OF CONFERENCES. - ISSN 2101-6275. - 123(2016). ((Intervento presentato al convegno HIAS Heavy Ion Accelerator Symposium : September, 14th - 18th tenutosi a Canberra (Australia) nel 2015 [10.1051/epjconf/201612304006].
Recent advances in beta-decay spectroscopy at CARIBU
S. Bottoni;
2016
Abstract
beta-decay spectroscopy of nuclei far from stability can provide powerful insight into a broad variety of topics in nuclear science, ranging from exotic nuclear structure phenomena, stellar nucleosynthesis processes, and applied topics such as quantifying "decay heat" discrepancies for advanced nuclear fuel cycles. Neutronrich nuclei approaching the drip-line are difficult to access experimentally, leaving many key examples largely under studied. The CARIBU radioactive beam facility at Argonne National Laboratory exploits spontaneous fission of Cf-252 in production of such beams. The X-Array and SATURN decay station have been commissioned to perform detailed decay spectroscopy of low-energy CARIBU beams. An extended science campaign was started during 2015; with projects investigating nuclear shape changes, collective octupole vibrations, beta-delayed neutron emission, and decay-scheme properties which could explain the reactor antineutrino puzzle. In this article we review the current status of the setup, update on the first results and recent hardware upgrades, and look forward to future possibilities.
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