Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session 3WHA: Fragment Separation at RIBF and FRIB and Rare Isotope Production Mechanisms IInvited Workshop
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Chair: Bradley Sherrill, Michigan State University Room: Hilton Waikoloa Village Kohala 1 |
Monday, November 27, 2023 9:00AM - 9:30AM |
3WHA.00001: Possible limits of elements and isotopes Invited Speaker: Matthew R Mumpower The borders of the Periodic Table of Elements and of the Chart of Nuclides are not cast in stone. New experimental facilities are being built to create new elements and nuclides at the limit of atomic number, neutron number, and mass. This is driven by the desire of scientists to uncover properties of atoms and their nuclei in a regime of very high numbers of electrons, protons, and neutrons. |
Monday, November 27, 2023 9:30AM - 10:00AM |
3WHA.00002: Observation of new isotopes and determination of the neutron dripline at RIKEN RIBF Invited Speaker: Toshiyuki Kubo First I will briefly talk about the BigRIPS in-flight separator [1,2] at RIKEN RIBF [3]. Then I will outline the rare isotope (RI) beam production using the BigRIPS separator, including the search for new isotopes that were conducted several times since 2007. We have produced a total of 629 different RI beams and delivered to 250 experiments so far, and discovered more than 150 new isotopes. |
Monday, November 27, 2023 10:00AM - 10:30AM |
3WHA.00003: Design and Performance of the New FRIB Fragment Separator, ARIS Invited Speaker: Elaine Kwan In 2022, the facility for Radioactive Isotope Beams (FRIB) has commissioned a new linac and high resolution spectrometer called the Advanced Rare Isotope Separator known as ARIS. The linac will provide up to 400 kW of various species of heavy stable beams with energies in the range of 200 AMeV to the target at the entrance of the separator to produce a wide array of fast secondary radioactive beams. ARIS was designed to operate up to a rigidity of 8 Tm and consist of two- or three-separation stages to optimize experimental parameters. The multistage design allows for different optics modes that can result in momentum compression or high resolving power. The facility has already recommissioned several existing beamlines from the former National Super Conducting Laboratory (NSCL) and delivered its first rare isotopes to experiments based on these new optics modes. An overview of the new fragment separator and operation experiences since 2022 as the facility continues to ramp up to the design specifications as well as planned future upgrades will be presented. |
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