Bulletin of the American Physical Society
85th Annual Meeting of the APS Southeastern Section
Volume 63, Number 19
Thursday–Saturday, November 8–10, 2018; Holiday Inn at World’s Fair Park, Knoxville, Tennessee
Session B02: Low Energy Nuclear Physics in the FRIB Era |
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Chair: Robert Grzywacz, University of Tennessee Room: Holiday Inn Knoxville Downtown Cumberland |
Thursday, November 8, 2018 11:00AM - 11:30AM |
B02.00001: Oak Ridge National Laboratory’s Isotope Program: Unique and Dynamic Invited Speaker: Julie G Ezold Oak Ridge National Laboratory (ORNL) has a long history in the production of isotopes, heavy elements, and more recently in the discovery of super heavy elements (SHEs). Even though ORNL originated as part of the Manhattan Project, developing processes and techniques for the production, separation, and purification of 239Pu in 1944, its name has become synonymous with a wide range of isotopes. Two of ORNL’s unique facilities— Radiochemical Engineering Development Center and High Flux Isotope Reactor Research, are instrumental in the research and development of novel production techniques as well as chemical separations. Research into innovative methods for the transmutation of curium to heavier actinides and development of thin actinide targets for SHE discovery is at the forefront of ORNL’s Isotope Program. |
Thursday, November 8, 2018 11:30AM - 12:00PM |
B02.00002: Increasing selectivity and sensitivity of measurements for the study of rare isotopes Invited Speaker: Mustafa M Rajabali Upcoming facilities, FRIB at MSU and ARIEL at TRIUMF in Canada to name a few, and existing facilities like NISHINA Center at RIKEN in Japan bring the prospects of receiving rare and exotic isotopes. For scientists wanting to use these isotopes for research, it will be crucial to meet two challenges that come with the reduced beam rates as we make these isotopes far from the line of beta stability. The first is that of increasing the selectivity of the instruments available to discern the physics being pursued. The second is the challenge of improving the sensitivity of the instruments to measure rare events or exotic phenomena. In this talk we will explore some important developments to cater for both selectivity and sensitivity of measurements in low-energy nuclear structure. |
Thursday, November 8, 2018 12:00PM - 12:30PM |
B02.00003: Experimental Nuclear Astrophysics in the FRIB Era Invited Speaker: Catherine M Deibel At the birth of the Universe the initial abundances of Hydrogen, Helium and Lithium were created via Big Bang nucleosynthesis. Since that time, all other heavier elements have been synthesized through various nuclear processes in different stellar environments. While many aspects of main-sequence stellar burning are well understood, the synthesis of elements in more exotic stellar environments remains uncertain. This is largely due to the fact that many of the nuclear processes that produce heavy elements during stellar explosions occur on unstable nuclei and are therefore difficult to study in the laboratory. With the advent of radioactive ion beam facilities, more of these unstable nuclei and the nuclear reactions in which they are involved have become accessible; however, significant limitations still exist due to the low intensities and limited species that can be produced at current accelerator laboratories. The Facility for Rare Isotope Beams (FRIB) at Michigan State University will significantly expand the availability of radioactive ion beams. In order to take advantage of these new and unique beams, the development of target and detector technology is already underway. With these new advances, both indirect and direct measurements of many of the reactions that drive explosive nucleosynthesis will be possible for the first time. Such accurate nuclear data is important for meaningful comparisons between stellar models and observational data, especially in this new era of multi-messenger astronomy. Plans for a robust experimental program with FRIB and the potential impact on our understanding of different nuclear processes and the stellar environments in which they occur will be discussed. |
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