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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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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Latest News
Digital control system installed at China’s Linglong One
Earlier this month, the first digital control system was put in place at Linglong One, a small modular reactor demonstration project being built at the Changjiang nuclear power plant in Hainan Province. This is the world’s first land-based commercial SMR and is controlled by China National Nuclear Power Co. Ltd., a subsidiary of the China National Nuclear Corporation (CNNC).
Adimir dos Santos, Jamil Alves do Nascimento
Nuclear Technology | Volume 140 | Number 3 | December 2002 | Pages 233-254
Technical Paper | Fission Reactors | doi.org/10.13182/NT02-A3336
Articles are hosted by Taylor and Francis Online.
An Integral Lead Reactor (ILR) concept is proposed to be used in developing countries. The ILR is an association of the best characteristics of the American Integral Fast Reactor and of the Russian Lead-Cooled Reactor. The reactor is started with U-Zr and shifts cycle-by-cycle to the U-TRU-Zr fuel. Besides electricity generation an association of the ILR and a chemical heat pump for high-temperature industrial processes is idealized.Homogeneous reactor cores based on the American and Russian experiences on fast reactor technology have been designed for conception evaluation. The main core parameters are evaluated in the first and in the equilibrium cycles as a function of the pin diameter in the 6.35- to 10.4-mm range, pin pitch-to-diameter (p/d) ratio in the 1.308 to 1.495 range, and reactor power in the 300- to 1500-MW(electric) range. To mitigate the transient-overpower accident, a requisite is to have a burnup reactivity (kBu) < eff in the equilibrium cycle. The use of enriched uranium results in a poor core conversion ratio, and this fuel must be replaced as quickly as possible by the generated plutonium. In the equilibrium cycle the burnup reactivity goal is achieved for core power of 300 MW(electric) using a pin diameter of 10.4 mm and p/d of 1.308. The lead void reactivity is negative for reactor power lower than 750 MW(electric). The Doppler effect is small, as expected in a fast reactor loaded with metallic fuel. The fast fluence limit of 4.0 × 1023 n/cm2 is a restrictive parameter of the ILR, and to obtain the burnup of 100 GWd/t HM, a core optimization is needed. All the base accident evaluation and the optimization of the ILR are still to be performed.