title: Extended set of activation monitors for NCT beam characterization and spectral conditions of the beam after reactor fuel conversion.
abstract: Since 2010 the LVR-15 reactor has been gradually converted from highly enriched fuel (36wt% (235)U) to low enriched fuel with the enrichment of 19.75wt% (235)U. Paper presents influence of the core pattern changes on the neutron characteristics of the epithermal beam. The determination of neutron spectrum free in the beam was done with a set of neutron activation monitors. After the reactor conversion the change in neutron spectrum is not provable as differences are in the range of measurement errors.
authors.affiliation: Centrum Výzkumu Řež s.r.o (Research Centre Rez), 25068 Husinec-Rez 130, Czech Republic. Electronic address: Milan.Marek@cvrez.cz.
authors.forename: Milan
authors.initials: M
authors.lastname: Marek
authors.affiliation: Centrum Výzkumu Řež s.r.o (Research Centre Rez), 25068 Husinec-Rez 130, Czech Republic.
authors.forename: Miroslav
authors.initials: M
authors.lastname: Vins
authors.affiliation: Centrum Výzkumu Řež s.r.o (Research Centre Rez), 25068 Husinec-Rez 130, Czech Republic.
authors.forename: Zdena
authors.initials: Z
authors.lastname: Lahodova
authors.affiliation: Centrum Výzkumu Řež s.r.o (Research Centre Rez), 25068 Husinec-Rez 130, Czech Republic.
authors.forename: Ladislav
authors.initials: L
authors.lastname: Viererbl
authors.affiliation: Centrum Výzkumu Řež s.r.o (Research Centre Rez), 25068 Husinec-Rez 130, Czech Republic.
authors.forename: Michal
authors.initials: M
authors.lastname: Koleska
mesh_terms: D016754:Boron Neutron Capture Therapy / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009502:Neutrons; D009688:Nuclear Reactors / Q000295:instrumentation*; D011874:Radiometry / Q000295:instrumentation*; D014501:Uranium / Q000032:analysis*
chemical_list: D014501:Uranium
keywords: Activation monitors; BNCT; Epithermal neutron beam