Neutronic feasibility study of using a multipurpose MNSR for BNCT, NR, and NAA
In this study, the conceptual design of a multipurpose research reactor for boron neutron capture therapy (BNCT), neutron radiography (NR) and neutron activation analysis (NAA) applications has been performed. Specifically, a suitable epithermal neutron flux (φEpi) of about 1×109 (n.cm−2.s−1) for BN...
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Veröffentlicht in: | Applied radiation and isotopes 2020-07, Vol.161, p.109147-109147, Article 109147 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this study, the conceptual design of a multipurpose research reactor for boron neutron capture therapy (BNCT), neutron radiography (NR) and neutron activation analysis (NAA) applications has been performed. Specifically, a suitable epithermal neutron flux (φEpi) of about 1×109 (n.cm−2.s−1) for BNCT and high quality thermal neutron flux (φTh) of above 1×106 (n.cm−2.s−1)for NR are carried out based on our LEU reactor core designing. The UO2 fuel with density of 10.5 g/cm3 and enrichment of 12.4% is applied as an appropriate LEU fuel. The reactor safety is assured by designing the safety control rod system with two banks. A fission converter facility (FCF) consists of 19 fuel rods of UO2 is used to increase φEpi for BNCT treatment. Furthermore, a unique thermal column of heavy water is used to increase φTh for NR purpose. Four internal irradiation sites, two external irradiation sites, and one large thermal column irradiation site are considered at the reactor which can be used for NAA application. The results of neutronic calculations show that the reactor meets the neutronic design limits for a low power research reactor.
•The neutronic design of the new generation multipurpose MNSR has been done.•A fission converter facility is used to increase epithermal neutron flux for BNCT.•A unique thermal column is used for neutron radiography. |
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ISSN: | 0969-8043 1872-9800 |
DOI: | 10.1016/j.apradiso.2020.109147 |