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Division Spotlight
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.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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Latest News
Don’t get boxed in: Entergy CNO Kimberly Cook-Nelson shares her journey
Kimberly Cook-Nelson
For Kimberly Cook-Nelson, the path to the nuclear industry started with a couple of refrigerator boxes and cellophane paper. Her sixth-grade science project was inspired by her father, who worked at Seabrook power station in New Hampshire as a nuclear operator.
“I had two big refrigerator boxes I taped together. I cut the ‘primary operating system’ and the ‘secondary system’ out of them. Then I used different colored cellophane paper to show the pressurized water system versus the steam versus the cold cooling water,” Cook-Nelson said. “My dad got me those little replica pellets that I could pass out to people as they were going by at my science fair.”
Zhiqiang Chen, Jingjing Chen, Shuangbao Shu, Ziqiao Yu, Yuzhong Zhang, Xiaojie Tao, Xianli Lang
Nuclear Science and Engineering | Volume 196 | Number 10 | October 2022 | Pages 1255-1265
Technical Paper | doi.org/10.1080/00295639.2022.2072660
Articles are hosted by Taylor and Francis Online.
Monitoring the oil scale deposition thickness of pipelines is beneficial to ensuring the efficient and safe operation of pipelines. In this paper, an improved gamma-ray transmission method is proposed to reconstruct the two-dimensional (2D) oil scale profile of pipelines. The method combines the gamma-ray transmission method and scanning technology to measure the deposition thickness of the oil scale and rotates the gamma-ray scanning direction to different angles, after completing a transmission scanning process, to achieve the full-angle measurement of the oil scale deposition thickness. Based on this method, a set of oil scale profile detection devices is designed and the detection process is simulated by the Geant4 toolkit. In this system model, the pipelines with and without oil scale are scanned, respectively, by using the single-energy gamma-ray beam to analyze the relative transmittance of gamma rays at the energy of 0.662 MeV. The results show that the approach is efficient for detecting the deposition thickness of oil scale in oil pipelines and is accurate for the 2D oil scale profile reconstruction of a pipeline. The maximum deviation is about 0.59 cm, and the relative error is less than 5%.
