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Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
2023 ANS Annual Meeting
June 11–14, 2023
Indianapolis, IN|Marriott Indianapolis Downtown
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The Civil Nuclear Credit Program: An overview
Officially established on November 15, 2021, with the signing of the $1.2 trillion Infrastructure Investment and Jobs Act—aka the Bipartisan Infrastructure Law, or BIL—the Department of Energy’s Civil Nuclear Credit Program was designed to give owners/operators of commercial U.S. reactors the opportunity to apply for certification and competitively bid on credits to help support the continued operation of economically troubled units. Finally, the federal government, and not just certain farsighted state governments, would recognize nuclear energy for its important grid reliability and decarbonization attributes.
Florent Heidet, Ehud Greenspan
Nuclear Technology | Volume 181 | Number 2 | February 2013 | Pages 251-273
Technical Paper | Fission Reactors/Fuel Cycle and Management | doi.org/10.13182/NT13-A15782
Articles are hosted by Taylor and Francis Online.
A preliminary feasibility study is performed for a sodium-cooled breed-and-burn (B&B) fast reactor core for achieving high uranium utilization without solid fission product separation that could fit within a reactor vessel of the dimensions of SuperPRISM (S-PRISM). This 1000-MW(thermal) B&B core is to be fueled with depleted uranium with the exception of the fissile loading required for achieving initial criticality. When the fuel reaches its radiation damage limit, it is reconditioned using the melt-refining process and reloaded into the core until it runs out of reactivity.It is found that the maximum burnup at which the S-PRISM-sized B&B core can be designed to discharge its fuel is 43% fissions per initial metal atom. The corresponding uranium utilization is nearly 90 times higher than that of a light water reactor. The achievable burnup strongly depends on the fuel volume fraction but is almost insensitive to the core power density, fuel-reconditioning frequency, and duration of the fuel-reconditioning process.