A 1-ampere-class high-intensity deuteron linac (ImPACT2017 model) is proposed for mitigating long-lived fission products (LLFPs) by nuclear transmutation. This accelerator consists of single-cell rf ...cavities with magnetic focusing elements to accelerate deuterons beyond 1 A up to 200 MeV/u.
Full text
Available for:
FFLJ, NUK, ODKLJ, UL, UM, UPUK
Research activities of nuclear physics at Radioactive Isotope Beam Factory over 10 years are reviewed and future directions are also discussed. Conceptual ideas in designing the facility as well as ...experimental devices are introduced. Special emphasis is given to highlighted results obtained at RIBF.
Full text
Available for:
EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The SπRIT Time Projection Chamber (TPC) was constructed at Michigan State University in the U.S.A. and transported to the Radioactive Isotope Beam Factory at RIKEN in Japan. In October 2015, the ...SπRIT TPC was commissioned with 200 AMeV
79
Se beams outside the SAMURAI dipole magnet. The experimental setup consists of the SπRIT TPC, a Multiplicity Trigger Array, a KATANA array, and a Active Veto array. The TPC is fully equipped with a newly-developed read-out electronics system, GET electronics. The trigger logic to select events of the TPC based on the ancillary detectors was tested. The analysis software, SpiRITROOT, was developed to analyze the SπRIT TPC data to determine the best trigger logic for upcoming experiments.
Full text
Available for:
EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The RI Beam Factory (RIBF) is presently the top world-class radioactive-isotope (RI) beam facility in the world. This facility is based on the in-flight method to produce fast RI beams. High-energy ...and intense primary beams accelerated by a superconducting ring cyclotron (SRC) are converted, via the projectile fragmentation or fission reaction channels, to RI beams at a new fragment separator called BigRIPS. Construction of SRC and BigRIPS has been completed in March, 2007. Construction of major experimental installations has been commenced in 2007. Physics opportunities with the RIBF are discussed herein.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
Abstract
Coulomb breakup reactions of $^{93,94}$Zr have been studied in inverse kinematics at incident beam energies of about 200 MeV/nucleon in order to evaluate neutron capture reaction methods. ...The $^{93}$Zr(n,$\gamma$)$^{94}$Zr reaction is particularly important as a candidate nuclear transmutation reaction for the long-lived fission product $^{93}$Zr in nuclear power plants. One- and two-neutron removal cross sections on Pb and C targets were measured to deduce the inclusive Coulomb breakup cross sections, 375 $\pm$ 29 (stat.) $\pm$ 30 (syst.) and 403 $\pm$ 26 (stat.) $\pm$ 31 (syst.) mb for $^{93}$Zr and $^{94}$Zr, respectively. The results are compared with estimates using the standard Lorentzian model and microscopic calculations. The results reveal a possible contribution of the pygmy dipole resonance or giant quadrupole resonance in the Coulomb breakup reactions of $^{94}$Zr.
PDF
