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Neutron spectrum determination of accelerator-driven d(10)+Be neutron source using the multi-foil activation technique
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SYSNO ASEP 0552415 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Neutron spectrum determination of accelerator-driven d(10)+Be neutron source using the multi-foil activation technique Author(s) Štefánik, Milan (UJF-V) RID, ORCID, SAI
Šimečková, Eva (UJF-V) RID, ORCID, SAI
Bém, Pavel (UJF-V) RID, ORCID, SAI
Štursa, Jan (UJF-V) RID, ORCID
Zach, Václav (UJF-V) SAI, ORCID
Mrázek, Jaromír (UJF-V) RID, ORCID, SAINumber of authors 6 Article number 109767 Source Title Radiation Physics and Chemistry. - : Elsevier - ISSN 0969-806X
Roč. 190, JAN (2022)Number of pages 8 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords Compact accelerator-driven neutron source ; Neutron spectra ; Neutron activation technique ; Gamma-ray spectrometry ; Reaction rate ; SAND-II unfolding code OECD category Nuclear related engineering R&D Projects EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001679 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LTAUSA18198 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000703606700006 EID SCOPUS 85115178862 DOI 10.1016/j.radphyschem.2021.109767 Annotation New neutron field of the compact accelerator-driven fast neutron source based on the cyclotron and beryllium target station was studied and developed at the NPI CAS. Neutrons were generated using the deuteron bombardment on 8 mm thick beryllium layer by the 10.3 MeV deuteron beam. Broad neutron energy spectra of the d(10)+Be source reaction at two source-to-sample distances (14 mm and 154 mm) were determined for the first time at the NPI. Sets of eight activation materials comprising Au, Co, Ti, In, Al, Fe, Ni, and Nb were irradiated in the d(10)+Be neutron field, and activated dosimetry foils were analysed using the nuclear gammaspectroscopy technique (HPGe detector) and reaction rates were measured. Neutron energy spectra of the d + Be source reaction for 10.3 MeV deuterons were reconstructed employing the modified version of the SAND-II unfolding code. For 9.7 mu A deuteron beam, the fast neutron flux of developed d(10)+Be neutron field reached the value of 1.4 x 1010 cm- 2s- 1 at a distance of 14 mm from the source target and 4.1 x 108 cm- 2s- 1 at a distance of 154 mm. The novel d(10)+Be neutron field with energy range up to 15 MeV is convenient for neutron crosssection data validation, experimental simulation of the fast neutron spectrum of experimental nuclear reactors, applications of neutron activation analysis, and radiation hardness tests of materials important for nuclear energetics. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.radphyschem.2021.109767
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