EntityQ221033· pop 20· linked from 286 articlesnuclear poisonSign in to savesubstance with a large neutron absorption cross-section, which degrade nuclear fission chain reactions in reactorsConnectionsneutron temperatureEntityneutron captureEntityneutron cross sectionEntityboronEntityInternational Standard Book NumberEntityiodineEntityhafniumEntityneutronEntitygadoliniumEntityisotopeEntityWayback MachineEntityInternational Atomic Energy AgencyEntitydigital object identifierEntitynuclear reactorEntitytritiumEntityalpha particleEntitymass numberEntitynuclear reactionEntityOCLC, Inc.Entityorthoboric acidEntityCategoriesNeutron poisonsNuclear reactor safetyNuclear technology