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Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
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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Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
P. Qi, S. G. Qing, Q. Li, G.-N. Luo
Fusion Science and Technology | Volume 61 | Number 4 | May 2012 | Pages 314-320
Technical Paper | doi.org/10.13182/FST12-A13585
Articles are hosted by Taylor and Francis Online.
With increases in the heating and driving power in EAST, the present SiC-C plasma-facing components (PFCs) will be replaced by W coatings on actively cooled Cu heat sinks in the lower-heat-flux zone (first wall), prepared by vacuum plasma spraying, and by ITER-like W-Cu monoblocks in the higher-heat-flux zone (divertor). These components are provided with thousands of joints that should be assessed to demonstrate their integrity. An ultrasonic method named pulse echo using high-frequency probes and normal incidence of the ultrasonic beam to the joint interface has been developed. For the W-coating PFC, although the existence of porous structure, shrinkage cracks, and delamination in W coating can adversely affect the sensibility of detecting interface defects, the ultrasonic technique is able to detect, locate, and size them in certain conditions; for the W-Cu monoblocks, the ultrasonic technique is also able to detect, locate, and size defects in the W-oxygen-free high conductivity (OFHC) Cu interface, but further detecting and analysis should be carried out for the OFHC Cu-CuCrZr interface based on the preliminary work.