Physical start-up of the Nuclear Subcritical Facility “Neutron Source” of NSC KIPT
DOI:
https://doi.org/10.15407/dopovidi2024.03.044Keywords:
subcritical nuclear facility, neutron source, physical start-up, effective neutron multiplication factor, reactivityAbstract
National Science Center “Kharkov Institute of Physics and Technology” jointly with the Argonne National Laboratory developed, designed and constructed the Subcritical Nuclear Facility “Neutron source based on the subcritical assembly driven by electron linear accelerator”. The article presents the main results obtained during the physical start-up of the plant, the program of which involved the staged loading of fuel assemblies into the core with subsequent measurements of its neutron-physical characteristics. In total, 37 fuel assemblies of WWR-M2 type were loaded into the facility core. The values o f the effective neutron multiplication factor keff and reactivity ρ of the subcritical assembly were measured after each loading step using the multiplication and area ratio methods. In addition, the neutron flux to electron current ratio method was tested for on-line reactivity monitoring. The investigations were performed when the accelerator was operated with 100 MeV electron beam energy, 2.7 μs electron pulse duration, 20 Hz pulse repetition rate and ≤ 40 mA beam pulse current. The obtained results were analyzed in terms of ensuring the facility nuclear safety at the next stage of its commissioning which is the pilot operation.
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Zelinsky, A. Y., Bezditko, O., Demchenko, P. O., Karnaukhov, I., Oleinik, V., Peev, F., Ushakov, I., Vodin, O. & Gohar, Y. (2013, May). NSC KIPT neutron source on the base of subcritical assembly driven with electron linear accelerator. Proceedings of the 4th International particle accelerator conference (IPAC 2013) (pp. 3481- 3483). Shanghai, China.
Vodin, A. N., Demchenko, P. A., Zelinsky, A. Yu., Karnaukhov, I. M., Neklyudov, I. M., Peev, F. A., Pugachev, G. D.
& Ushakov, I. V. (2013). NSC KIPT Neutron Source Status. Prob. Atom. Sci. Technol., No. 6, pp. 3-7.
Gohar, Y., Briggs, L. L., Cao, Y., Fischer, R., Kellogg, R. L., Kraus, A., Merzari, E., Talamo, A. & Zhong, Z. (2022). Neutron Source Facility of the National Science Center “Kharkiv Institute of Physics and Technology” at Kharkiv, Ukraine. Argonne National Laboratory, United States. https://doi.org/10.2172/1900255
Aizatskiy, M., Bezditko, O., Karnaukhov, I., Kushnir, V., Mitrochenko, V., Zelinsky, A., Gohar, Y., Dai, X., Chi, Y., Deng, C. D., Hou, M., Kong, X., Liu, R., Liu, W., Ma, C., Pei, G., Pei, S., Song, H., Wang, S., Zhao, J. & Zhou, Z. (2013, May). 100 MeV/100 kW electron linear accelerator driver of the NSC KIPT neutron source. Proceedings of the 4th International particle accelerator conference (IPAC 2013) (pp. 3121-3123). Shanghai, China.
Bezditko, A. P., Gordienko, A. N., Gladkikh, P. I., Gvozd, A. M., Kapliy, D. A., Karnaukhov, I. M., Karnaukhov,
I. I., Lyashchenko, V. N., Mytsykov, A. O., Moisieienko, M. P., Rudenko, V. E., Ryezayev, A. V., Tarasov, D. V., Trotsenko, V. I. & Zelinsky, A. Yu. (2020). 100 MeV/100 kW accelerator adjustment for the NSC KIPT neutron source physical start up. Probl. Atom. Sci. Technol., No. 5, pp. 135-142.
Karnaukhov, I. M., Borts, B., Zelinskiy, A., Ushakov, I., Lopata, A., Vorobyov, I., Polyakov, Yu., Parkhomenko, A., Vanzha, A. & Sytin, V. (2023, May). A tungsten neutron-generating target of a neutron source based on a subcritical assembly driven with an electron accelerator. Proceedings of the 14th International particle accelerator conference (IPAC 2023) (pp. 1640-1643). Venice, Italy. https://doi.org/10.18429/JACoW-IPAC2023-TUPA149
Werner, C. J. (Ed.) (2017). MCNP®. User’s Manual. Code Version 6.2. Los Alamos National Security, LLC.
Gladkikh, P., Karnaukhov, I. M., Mytsykov, A., Tertychniy, A., Zelinsky, A. & Zhadan, A. (2023, May). Reactivity measurements for the NSC KIPT subcritical neutron source facility. Proceedings of the 14th International particle accelerator conference (IPAC 2023) (pp. 1637-1639). Venice, Italy. https://doi.org/10.18429/JACoW-IPAC2023-TUPA148
Bykhun, A., Gladkikh, P., Karnaukhov, I., Lyashchenko, V., Mytsykov, A., Ridozub, V., Selivanov, V., Stomin, V., Tertychnyj, A., Ushakov, I. & Zelinsky, A. (2023). Reactivity measurement methods and the first results of the physical start-up for the nuclear subcritical facility “Neutron source”. Ukr. J. Phys., 68, No. 3, pp. 147-161. https://doi.org/10.15407/ujpe68.3.147
Cao, Y., Gohar, Y. & Zhong, Z. (2015). Measuring and monitoring KIPT neutron source facility reactivity. Argonne National Laboratory. https://doi.org/10.2172/1224197
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