6533b7d6fe1ef96bd1267114

RESEARCH PRODUCT

ESR response of watch glasses to neutron irradiation

Anna LongoMaurizio MarraleElio Angelo TomarchioMaria Brai

subject

Nuclear and High Energy PhysicsMaterials scienceSettore ING-IND/20 - Misure E Strumentazione NucleariEPR Accidental dosimetry Watch glasses NeutronsRadiationSignalFluencehumanitiesSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)law.inventionNuclear magnetic resonancelawNeutron fluxDosimetryNeutronAtomic physicsNeutron irradiationElectron paramagnetic resonanceInstrumentation

description

Abstract In this paper we report the results of the electron spin resonance (ESR) study of the radiation-induced signal of watch glasses exposed to neutrons. This work extends the series of analyses of the response of watch glasses to various radiation beams which our research group is carrying out for possible applications in retrospective dosimetry. We have considered fluences up to about 3 × 1011 cm−2. We evaluated the signal fading and we found that in the first hours after exposure the signal rapidly decreases. After about 1000 h, it decreases much more slowly. The signal was reduced by about 25% in about 5 months. The radiation induced signal is found to be linearly dependent on neutron fluence and an estimate of the lowest detectable fluence is provided.

yearjournalcountryeditionlanguage
2012-12-01
10.1016/j.nimb.2012.09.018http://hdl.handle.net/10447/71965