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The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
2021 Student Conference
April 8–10, 2021
North Carolina State University|Raleigh Marriott City Center
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A day in the life of the nuclear community
The November issue of Nuclear News is focused on the individuals who make up our nuclear community.
We invited a small group of those individuals to tell us about their day-to-day work in some of the many occupations and applications of nuclear science and technology, and they responded generously. They were ready to tell us about the part they play, together with colleagues and team members, in supplying clean energy, advancing technology, protecting safety and health, and exploring fundamental science.
In these pages, we see a community that can celebrate both those workdays that record progress moving at a steady pace and the exceptional days when a goal is reached, a briefing is delivered, a contract goes through, a discovery is made, or an unforeseen challenge is overcome.
The Nuclear News staff hopes that you enjoy meeting these members of our community—or maybe get reacquainted with friends—through their words and photos.
Gregory A. Szalkowski, Justin Roper
Nuclear Technology | Volume 205 | Number 7 | July 2019 | Pages 905-911
Technical Paper – Selected papers from the 2018 ANS Student Conference | dx.doi.org/10.1080/00295450.2018.1533349
Articles are hosted by Taylor and Francis Online.
With the increase in the precision of treatments delivered using radiotherapy machines, there has been a corresponding rise in demand for quality assurance tests that can verify the accuracy of these machines. One common test, star shot analysis, evaluates the isocenter stability of a radiotherapy machine using radiosensitive film or the electronic portal imaging device (EPID). This work details the development of an in-house method of automatically processing film and EPID images to conduct quality assurance testing. In contrast to commercially available software that analyzes a composite image star shot with multiple spokes superimposed on a single image, this work investigates a Gaussian peak finding technique while leveraging the EPID to image one spoke at a time.
Spoke-by-spoke analysis was used to investigate the effects of opposing angles on composite image star shot analysis and to assess for collimator trajectories with minimal walkout. This revealed that irradiating film using opposing angles can give artificially low variations in the radiation isocenter due to offsetting deviations from the true center and that walkout was not the same for every 180-deg arc for the collimator, implying that some rotation arcs could give less variation during treatment.