Estudo comparativo das respostas de monitores de Rn-222 que utilizam o CR-39 como detector de tracos de particulas alfa / Response comparative study os Rn-222 alpha particle track monitors

AUTOR(ES)

Osvaldo Luiz dos Santos Pereira

DATA DE PUBLICAÇÃO

2010

RESUMO

This work was a comparative study between the responses of three monitors, the NRPB, an acrylic monitor (in thin film geometry) and the aluminum monitor (also thin film geometry) in controled and mixed environment. The experiments consisted on placing the monitors in a plastic tube, with a radio-226 source internal. Only internal CR-39 plastic detectors were analyzed in this work. It was found that the monitors in thin film geometry had activities response of approximately 15% less than the NRPB monitors. All monitors responded the same way when in controlled environment. Related to the type of material, conductive plastic or dielectric (insulator) plastic, the NRPB, in environments without ventilation, responded in the same way

ASSUNTO(S)

particulas alfa (fisica nuclear) nuclear detectors tracks (nuclear physics) traços de particula (fisica nuclear) particulas (fisica nuclear) radonio-222 e filhos radon radon-222 and daughters detectores nucleares alpha particles (nuclear physics) particles (nuclear physics) radonio

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