The evolution of radiochemistry at the National Atomic Energy Commission (CNEA) in Argentina is analyzed. The antecedents
of the establishment, in 1998, of the Master Programme in Radiochemistry, jointly organized by CNEA and the Buenos Aires Regional
Faculty of the National Technological University are revised, and the structure of the Programme is described. On the basis
of the thesis works, the initial trends are discussed. Finally, the institutional results of the Programme are described.
Authors:A. Mondino, H. Cols, P. Cristini, and J. Furnari
In Argentina, at the Ezeiza Atomic Center,131I is produced by wet distillation of natural tellurium dioxide irradiated with thermal neutrons in a pool-type reactor. In
order to recover the131I present in the production process of fission99Mo obtained by irradiation of UALx/Al targets (with 90% enriched uranium) a separation method was developed. Iodine isotopes can be separated from a sodium
hydroxide solution containing fission products using a column filled with alternate beds of glass microspheres and porous
metal silver. Tests with tracers were performed in radiochemical laboratory. Following this results, a series of tests with
higher activities (3 TBq of99Mo and 0.7 TBq of131I) were carried out in hot cells. Molybdenum passes through the silver column, while131I retention was 92–97% in tracer test and 90% in optimised hot cell tests. This result depends on several facts that are discussed.
An initial separation of iodine isotopes diminishes radiation damage on ion-exchange resin used in the subsequent molybdenum
purification, improving its retention and elution yield.
Authors:M. C. Fornaciari Iljadica, J. C. Furnari, and I. M. Cohen
The evolution of education in Argentina at the university level is described. The detailed search of the educational offer
shows that less than half of the universities (35 out of 92) include chemistry and chemistry related undergraduate programmes
in their curriculum. The revision of the position of radiochemistry in these programmes reveals that only seven courses on
radiochemistry are currently offered. Radiochemistry is included only in few programmes in chemistry and biochemistry. With
respect to the programmes in chemical engineering the situation is worse. This offer is strongly concentrated in Buenos Aires
and its surroundings.
Authors:I. Cohen, A. Kestelman, J. Furnari, and M. Arribere
The fission neutron spectrum averaged cross-sections for the reactions70Ge(n,p)70Ga and74Ge(n,p)74Ga have been determined. The averages of four determinations are, respectively, (3.10±0.30) mb and (0.00938±0.00059) mb. The present values are, to the authors' knowledge, the first experimental data on the fission averaged cross-section for these reactions.