title: Standardization of106Ru/Rh by live-timed anticoincidence counting and gamma emission determination.
abstract: The absolute activity standardization measurement system of radionuclide by live-timed anticoincidence counting was implemented at LNMRI in 2008 to reduce the effects of some correction factors on the determination of activity with coincidence counting technique used for decades in the laboratory, for example, the corrections of dead time and resolution. With the live-timed anticoincidence system, the variety of radionuclides that can be calibrated by LNMRI was increased in relation to the type of decay. The objective of this study was to standardize the106Ru activity, determine gamma emission probabilities by spectrometric method for some energies, and estimate measurement uncertainties.
authors.affiliation: Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22783-127 Rio de Janeiro, Brazil.
authors.forename: C J
authors.initials: CJ
authors.lastname: da Silva
authors.affiliation: Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22783-127 Rio de Janeiro, Brazil; Programa de Engenharia Nuclear (PEN/COPPE, UFRJ), Caixa Postal 68590, CEP 21945-970 Rio de Janeiro, Brazil. Electronic address: eduardalexandre@gmail.com.
authors.forename: E A
authors.initials: EA
authors.lastname: Rezende
authors.affiliation: Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22783-127 Rio de Janeiro, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Poledna
authors.affiliation: Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22783-127 Rio de Janeiro, Brazil.
authors.forename: L
authors.initials: L
authors.lastname: Tauhata
authors.affiliation: Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22783-127 Rio de Janeiro, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Iwahara
authors.affiliation: Programa de Engenharia Nuclear (PEN/COPPE, UFRJ), Caixa Postal 68590, CEP 21945-970 Rio de Janeiro, Brazil.
authors.forename: R T
authors.initials: RT
authors.lastname: Lopes
keywords: Absolute activity measurement; Anticoincidence method; Gamma emission determination; Radionuclide metrology