β-delayed proton decay of 24 Si
TL;DR: In this article, a novel experimental approach has been employed for the measurement of delayed protons from the fragmentation of a ${}^{28}\mathrm{Si}$ beam with an energy of 100 MeV/nucleon.
Abstract: A novel experimental approach has been employed for the measurement of $\ensuremath{\beta}$-delayed protons from ${}^{24}\mathrm{Si}$ produced via the fragmentation of a ${}^{28}\mathrm{Si}$ beam with an energy of 100 MeV/nucleon. The secondary beam of ${}^{24}\mathrm{Si}$ was separated by the projectile fragment separator RIPS at RIKEN and was implanted in a 2.6 $\ensuremath{\mu}\mathrm{m}$ aluminum foil placed parallel to a gas-$\ensuremath{\Delta}E$ and silicon-$E$ detector telescope for the measurement of delayed protons. The above arrangement has led to a very clean, $\ensuremath{\beta}$-ray background free delayed proton energy spectra and a few new proton peaks could be identified from the decay of ${}^{24}\mathrm{Si}.$
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TL;DR: The assumptions and hamiltonians for the mean-field and shell-model configuration mixing models are summarized in this paper, where the properties discussed include binding energies, separation energies, displacement energies, intruder states, proton and neutron halos, diproton decay, spectroscopic factors, interaction cross sections, E1 and E2 transitions, beta decay, quadrupole moments and magnetic moments.
324 citations
01 May 2003-Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms
TL;DR: In this article, features of the in-flight radioactive isotope (RI) beam separators in Japan as well as a next-generation separator BigRIPS being built at RIKEN for the RI-beam factory project are reviewed.
Abstract: Presented are features of the in-flight radioactive isotope (RI) beam separators in Japan as well as of a next-generation separator BigRIPS being built at RIKEN for the RI-beam factory project. Characteristic features and present status of the existing separators are reviewed for the RIPS at RIKEN, the Secondary Beam Line at RCNP, the Secondary Beam Course at NIRS, the CRIB at CNS and the RMS at JAERI. Design features are outlined for the BigRIPS, which is characterized by two major features: large acceptances and a tandem (or two-stage) separator scheme. The large acceptances allow one to produce RI beams efficiently by using in-flight fission of uranium ions, being achieved by using superconducting quadrupoles with a large aperture. The tandem separator scheme allows one to deliver tagged RI beam. The integrated capability of the BigRIPS and the accelerators of the project can significantly enlarge the scope of future RI-beam experiments. A low-energy course following the BigRIPS can provide energy-degraded and -bunched RI beams to be applied for a gas catcher system with an RF ion guide, aiming at realizing a projectile fragmentation based ISOL system.
293 citations
TL;DR: In this article, a review of β-delayed decay modes, of one-and two-proton radioactivity, and of the experimental techniques which allowed us to get deep insights into the organisation of the atomic nucleus is presented.
168 citations
TL;DR: This evaluation of A = 24 has been updated from previous evaluations published in 1998En04, 1990En08, and 1978En02 as discussed by the authors, and the following tables continue the tradition of showing the systematic relationships between levels in A =24.
113 citations
TL;DR: This evaluation of A = 23 has been updated from previous evaluations published in 1998En04, 1990En08, and 1978En02 as mentioned in this paper, which continue the tradition of showing the systematic relationships between levels in A =23.
41 citations