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Transmutation efficiency of the spallation neutron target measured with the actinide sandwiches
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SYSNO ASEP 0539470 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Transmutation efficiency of the spallation neutron target measured with the actinide sandwiches Author(s) Závorka, L. (US)
Adam, J. (RU)
Furman, W. (RU)
Katovsky, K. (CZ)
Khushvaktov, J. (RU)
Solnyshkin, A. A. (RU)
Stoyanova, M. (BG)
Suchopár, Martin (UJF-V)
Tichý, Pavel (UJF-V) SAI
Tsoupko-Sitnikov, V. M. (RU)
Tyutyunnikov, S. I. (RU)
Vespalec, R. (CZ)
Vrzalová, Jitka (UJF-V) RID, ORCID
Wagner, Vladimír (UJF-V) RID, ORCID, SAI
Wilczynska, K. (PL)
Zeman, M. (CZ)Number of authors 16 Article number 164934 Source Title Nuclear Instruments & Methods in Physics Research Section A. - : Elsevier - ISSN 0168-9002
Roč. 988, FEB (2021)Number of pages 7 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords Actinide transmutation ; spallation neutrons ; Accelerators Driven Systems (ADS) ; MCNP6.2 simulations Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders OECD category Nuclear physics R&D Projects LTT18021 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000604627500017 EID SCOPUS 85097580145 DOI 10.1016/j.nima.2020.164934 Annotation We used actinide sandwiches composed of U-233, U-235, U-236, U-238, Np-237, Pu-238, and Pu-239 isotopes to study the transmutation efficiency of the natural uranium spallation target Quinta bombarded with 660-MeV protons. The efficiency, defined as a ratio of fission to production, was determined by measuring simultaneously the production of transuranium isotopes via the (n,gamma) and (n,xn) reactions, and fission incineration of their reaction products. For example, with the U-238-Pu-239 sandwich, measured was the production of Pu-239 from U-238 via the (n,gamma) reaction, as well as Pu-239 transmutation via fission. The efficiencies were measured using gamma spectroscopy. All the measured efficiencies were greater than 1.0, which demonstrates that the fast neutron spectrum at Quinta is highly suitable for actinide transmutation. Experimental results were compared with computer simulations employing the latest versions of the MCNP6 code and ENDF/B-VIII and JENDL/HE data libraries. A good agreement within one standard deviation was reached, which validates the utilized computation suite and shows that the suite is well capable of performing neutronic simulations related to actinide transmutation, spallation neutron sources and accelerator-driven systems. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.nima.2020.164934
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