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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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
Framatome signs contracts with Sizewell C
French nuclear developer Framatome is slated to deliver key equipment for Sizewell C Ltd.’s two large reactors planned for the United Kingdom’s Suffolk coast.
The agreement, reportedly worth multiple billions of euros, was announced this week and will involve Framatome from the design phase until commissioning. The company also agreed to a long-term fuel supply deal. Framatome is 80.5 percent owned by France’s EDF and 19.5 percent owned by Mitsubishi Heavy Industries.
Ming Wang, Jinxing Zheng, Yuntao Song, Xianhu Zeng, Ming Li, Wuquan Zhang, Pengyu Wang, Junsong Shen
Nuclear Technology | Volume 206 | Number 5 | May 2020 | Pages 779-790
Technical Paper | doi.org/10.1080/00295450.2019.1670011
Articles are hosted by Taylor and Francis Online.
The superconducting isochronous cyclotron SC200 for proton therapy is under development in Hefei, and the active scanning method has been selected as the beam delivery technology. To reduce energy loss and transverse scattering of the proton beam, a gas chamber in the pencil beam scanning (PBS) nozzle has been designed to shorten the length of the air segment. To determine whether using a helium filling gas or vacuum is the most suitable for the SC200 PBS nozzle, the beam size and the energy loss at the isocenter and the dose distribution in the water phantom are compared using the TOol for PArticle Simulation (TOPAS) code. The results show that using the helium filling gas resulted in scattering and energy loss of the proton beam compared with using vacuum, but these effects were minimal. Considering the disadvantages of the engineering problems of creating a vacuum chamber, helium was selected as the filling gas for the PBS nozzle chamber. Moreover, the following parameters were analyzed and optimized: gas pressure, gas purity, and film thickness of the chamber. When the helium pressure was below 1.1 atm and the air proportion was less than 5%, the beam size at the lowest energy of the proton beam at the isocenter was lower than 8 mm, meeting the clinical requirements.