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Nuclear Science and Engineering
Fusion Science and Technology
NCSU’s advanced research reactor study to be funded by state
North Carolina’s fiscal year 2024 budget for the state has allocated $3 million for North Carolina State University, in Raleigh, to conduct a study to assess the feasibility for the establishment of an advanced nuclear research reactor.
Y. E. Titarenko, S. S. Ananev, V. F. Batyaev, V. I. Belousov, V. Y. Blandinskiy, K. G. Chernov, V. D. Davidenko, A. A. Dudnikov, I. I. Dyachkov, M. V. Ioannisian, A. A. Kovalishin, V. I. Khripunov, B. V. Kuteev, V. O. Legostaev, M. R. Malkov, K. V. Pavlov, A. Y. Titarenko, M. A. Zhigulina, V. M. Zhivun, Y. A. Kashchuk, S. A. Meshchaninov, S. Y. Obudovsky, A. Y. Stankovskiy, A. Y. Konobeyev
Fusion Science and Technology | Volume 79 | Number 2 | February 2023 | Pages 117-134
Technical Paper | doi.org/10.1080/15361055.2022.2121525
Articles are hosted by Taylor and Francis Online.
This paper presents the results of the experimental determination and computational simulation of the ambient dose equivalent rate for a metallic thorium cylindrical miniblock and the (n,2n), (n,f), and (n,γ) reaction rates in a thin 232Th metal foil irradiated with neutrons of the NG-24M generator spectrum. The ambient dose equivalent rate was determined by dosimeters-radiometers. The reaction rates were determined by the activation method using Ge spectrometers without destroying the irradiated samples. Computational simulations of ambient dose equivalent and reaction rates were performed, respectively, using the radiation transport codes PHITS, MCNP5, and KIR2, which use various nuclear data libraries: JEFF-3.2 and -3.3; JENDL4.0; ENDF/B-VII.0, -VII.1, and -VIII.0; ROSFOND; FENDL; and TENDL. The authors give an estimate of the 232U/233U relative accumulation upon natural thorium irradiation in a fusion facility blanket with defined neutron spectrum. The nonirradiated and irradiated thorium nuclide composition change simulation and visualization were performed using analytical solutions of an ordinary system of homogeneous linear differential equations describing nuclide transmutations.