title: Disintegration rate and gamma ray emission probability per decay measurement of 123I.
abstract: A series of (123)I measurements have been carried out in a 4π(e(A),X)-γ coincidence system. The experimental extrapolation curve was determined and compared to Monte Carlo simulation, performed by code ESQUEMA. From the slope of the experimental curve, the total conversion coefficient for the 159 keV total gamma transition, α(159), was determined. All radioactive sources were also measured in an HPGe spectrometry system, in order to determine the gamma-ray emission probability per decay for several gamma transitions. All uncertainties involved and their correlations were analyzed applying the covariance matrix methodology and the measured parameters were compared with those from the literature.
authors.affiliation: Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro do Reator de Pesquisas-CRPq, C.P. 11049, Pinheiros, 05422-970-São Paulo-SP, Brazil. koskinas@ipen.br
authors.forename: M F
authors.initials: MF
authors.lastname: Koskinas
authors.forename: K C
authors.initials: KC
authors.lastname: Gishitomi
authors.forename: A B
authors.initials: AB
authors.lastname: Brito
authors.forename: I M
authors.initials: IM
authors.lastname: Yamazaki
authors.forename: M S
authors.initials: MS
authors.lastname: Dias
mesh_terms: D003198:Computer Simulation; D003627:Data Interpretation, Statistical; D005720:Gamma Rays; D006207:Half-Life; D007457:Iodine Radioisotopes / Q000032:analysis*; D008956:Models, Chemical; D015233:Models, Statistical; D009010:Monte Carlo Method; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*
chemical_list: D007457:Iodine Radioisotopes