Bulletin of the American Physical Society
86th Annual Meeting of the APS Southeastern Section
Volume 64, Number 19
Thursday–Saturday, November 7–9, 2019; Wrightsville Beach, North Carolina
Session L01: Topics in National Security |
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Chair: Mohammad Ahmed, North Carolina Central University Room: Holiday Inn Resort Causeway/Masonboro |
Saturday, November 9, 2019 4:30PM - 5:00PM |
L01.00001: Measurements of short-lived fission product yields using a rapid transit system Invited Speaker: Sean Finch A joint TUNL-LLNL-LANL collaboration was formed to measure the absolute fission product yields from $^{\mathrm{235}}$U, $^{\mathrm{238}}$U, and $^{\mathrm{239}}$Pu. Our goal is to study the energy evolution of fission products by using mono-energetic neutron and photon beams. In order to extend our successful fission product yield measurements to include products with shorter half-lifes, a RApid Belt-driven Irradiated Target Transfer System, named RABITTS, was constructed. This system allows us to perform cyclic activation and quantify fission products with $\gamma $-ray spectroscopy using HPGe detectors. Both a 1 meter and 10 meter transfer system have been developed, with transit times of 0.4 and 1.0 seconds, respectively. Using these systems, we have measured sub-second half-lifes. A detailed characterization of the system's performance will be shown, including preliminary fission product measurements, and the expected sensitivity. [Preview Abstract] |
Saturday, November 9, 2019 5:00PM - 5:30PM |
L01.00002: Cross section measurements of photonuclear reaction pathways towards promising medical radioisotopes Invited Speaker: Fnu Krishichayan Radioisotopes play important roles in numerous areas ranging from medical treatments to national security and basic research. Some examples include investigations of structures and reactions involving atomic nuclei, Mossbauer spectroscopy, radio- thermoelectric generation, nuclear device detection, and the mitigation of nuclear proliferation. The high specific activity beta emitters such as $^{47}$Sc, $^{67}$Cu, $^{77}$As, and $_{186}$Re are of extreme interest to the community as they have ideal nuclear properties for medical applications. \\ The present ongoing work is dedicated to develop methodologies for the determination of photonuclear cross sections over multiple energies in a single irradiation and simultaneously determine the feasibility of production of these in-demand radioisotopes using electron linear accelerator. By using activation techniques, cross sectional data is being obtained for these radioisotopes. The present talk will be focused on the technology development for medical radioisotope production using monoenergetic photon beams provided by the HIGS facility at TUNL. \\ \\ Work supported in part by the U.S. DOE Isotope Program [Preview Abstract] |
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