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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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Prepare for the 2025 Nuclear PE Exam with ANS guides
The next opportunity to earn professional engineer (PE) licensure in nuclear engineering is this fall, and now is the time to sign up and begin studying with the help of materials like the online module program offered by the American Nuclear Society.
Yukio Ishiguro, Satoru Katsuragi, Masayuki Nakagawa, Hideki Takano
Nuclear Science and Engineering | Volume 40 | Number 1 | April 1970 | Pages 25-37
Technical Paper | doi.org/10.13182/NSE70-A18877
Articles are hosted by Taylor and Francis Online.
A new method has been proposed for the selection of a single resonance structure or ladder used for the calculation of the cross sections in the unresolved resonance region. This method is especially useful for fissile nuclides, where level spacings are quite narrow, and is capable of taking the rather complicated energy-variation of alpha values into consideration. By use of the present method, studies have been made of the cross sections of 235U, 238U, 239Pu, and 240Pu. For the construction of the cross sections of these nuclides, new evaluations have also been made of the average resonance parameters, which were used in generation of the ladders. The calculated results are shown to be a very good representation of the low-resolution experimental data.