A diffusion-effusion database for the optimization of radioactive beams

摘要

An essential requisite for an efficient production of short-lived nuclei in an Isotope Separation On-Line (ISOL) facility is the fast release and extraction of the radioactive isotopes produced in the target ion-source system. In order to control the variables that affect the design and development of these target matrices and ion-sources, a database management system, called DifEflsol, containing the relevant information of this diffusion-effusion process has been built. The Oracle database is constructed within an Open-URL framework directly reachable from any Web-browser at http://www.targisol.csic.es. The database includes the diffusion and desorption data of most elements in a range of materials. About 2400 entries are presently stored in the database. These data are used as input to a Monte Carlo simulation program that presently is being tested. This paper presents the database and the Web application as a tool for diffusion-effusion studies. The structure of the database, the user interface and the simulation layout are reviewed.