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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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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
P. Mayo, F. Rodenas, J. M. Campayo, A. Pascual, B. Marín, G. Verdú
Nuclear Technology | Volume 168 | Number 1 | October 2009 | Pages 238-242
Phantoms | Special Issue on the 11th International Conference on Radiation Shielding and the 15th Topical Meeting of the Radiation Protection and Shielding Division (Part 1) / Radioisotopes | doi.org/10.13182/NT09-A9133
Articles are hosted by Taylor and Francis Online.
The purpose of this work is to assess the image quality of dental digital systems with computed radiography (phosphor plate) and direct radiography (charge-coupled-device sensor), by developing a specific dental phantom named RADEN and software to analyze the phantom image automatically. The phantom developed to evaluate the image quality of dental radiographic equipment has specific test objects of contrast-detail combinations appropriated for the resolution of the dental digital systems. The image quality is evaluated by using contrast-detail curves and an image quality index. The phantom was made of a square aluminum block 7.5 × 7.5 cm that has a lodge of size 3.2 × 3.2 cm for fixing the sensor of the digital dental system, and it contains specific test objects of contrast-detail combinations that are cylindrical holes. The diameters of the holes ranged from 0.3 to 1.6 mm, and the depths ranged from 0.14 to 1.28 mm; these ranges for the diameters and depths are suitable for resolution of the dental digital systems and the contrast attenuation curves of the X-radiation, and the results are sensitive to the operating conditions of the dental radiographic system.We have also developed specific software to analyze the RADEN phantom image automatically obtained by the digital radiographic equipment. The algorithms are based on digital image processing techniques, and they have been implemented in a user-friendly tool with a graphical interface.