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Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Strontium: Supply-and-demand success for the DOE’s Isotope Program
The Department of Energy’s Isotope Program (DOE IP) announced last week that it would end its “active standby” capability for strontium-82 production about two decades after beginning production of the isotope for cardiac diagnostic imaging. The DOE IP is celebrating commercialization of the Sr-82 supply chain as “a success story for both industry and the DOE IP.” Now that the Sr-82 market is commercially viable, the DOE IP and its National Isotope Development Center can “reassign those dedicated radioisotope production capacities to other mission needs”—including Sr-89.
N. M. Borisov, M. P. Panin
Nuclear Science and Engineering | Volume 150 | Number 3 | July 2005 | Pages 284-298
Technical Paper | doi.org/10.13182/NSE05-A2516
Articles are hosted by Taylor and Francis Online.
Adjoint Monte Carlo methods for coupled transport are developed. The phase-space is extended by the introduction of an additional discrete coordinate (particle type of so-called generalized particle). The generalized particle concept allows the treatment of the transport of mixed radiation as a process with only one particle outgoing from a collision regardless of the physical picture of the interaction. In addition to the forward equation for the generalized particle, the adjoint equation is also derived. The proposed concept is applied to the adjoint equation of the coupled gamma-ray-electron-positron transport. Charged particle transport is considered in continuous slowing down approximation and Molière's theory of multiple scattering, for which special adjoint sampling methods are suggested. A new approach to simulation of fixed-energy secondary radiation is implemented into the generalized particle concept. This approach performs fixed-energy secondary radiation simulation as the local energy estimator through the intermediate state with fixed energy. A comparison of forward and adjoint calculations for energy absorption shows the same results for radionuclide energies with and without electron equilibrium. Adjoint methods show greater efficiency in thin slabs.