Eur. Phys. J. Special Topics 150, 275-276 (2007)
https://doi.org/10.1140/epjst/e2007-00322-5

Release time calculations for the SPES direct UCx target

¹ INFN Laboratori Nazionali di Legnaro, viale dell'Universitá 2, 35020 Legnaro (Pd), Italy
² ENEA, via M.M. Sole 4, 40129 Bologna, Italy
³ Dipartimento di Ingegneria Meccanica, via Venezia 1, 35131 Padova, Italy
⁴ Dipartimento di Scienze Chimiche, via Marzolo 1, 35131 Padova, Italy
⁵ CERN, 1211 Geneva, Switzerland

Corresponding author: barbui@lnl.infn.it

Received: 31 January 2007
Published online: 8 December 2007

Abstract

A Direct Target for a mid-term RIB ISOL-type facility is being developed at LNL, in the framework of the R&D for the SPES project [1]. Using a 40 MeV proton beam impinging on a UCx thick target of 2.5 g/cm³ density, a production rate of 10¹³ in target fissions per second is expected [2]. The crucial point, when short-lived isotopes are produced in the target, is to build systems (target + ion source) with good release properties and high efficiency. Monte Carlo simulations were performed using the GEANT4 toolkit [3] and the RIBO code [4] in order to optimize our target geometry and to estimate the average release time.