Feasibility of high power refractory metal-foil targets for EURISOL
CERN, European Organization for Nuclear Research, 1211 Genève 23, Switzerland
Published online: 8 December 2007
EURISOL foil-targets have to withstand a primary proton beam of 1 GeV kinetic energy and up to 100 μA beam current. These foil targets will be based on previous high-power target concepts, i.e. the RIST target [J.R.J. Bennett et al., Nucl. Instrum. Meth. Phys. Res. B 126, 117 (1997)] or high power targets used at TRIUMF [P. Bricault et al., Nucl. Instrum. Meth. Phys. Res. B 204, 319 (2003), M. Dombsky et al., Nucl. Instrum. Meth. Phys. Res. B 204, 191 (2003)]. A single target unit is capable of dissipating up to 25 kW, hence, several target units can be merged together by individual transfer lines to one common ion source. The single target units will be irradiated by a proton beam in a time sharing mode to distribute the primary proton beam current to the individual target units. In this feasibility study the necessary properties of high-power foil targets are discussed and the requirements to design a foil target according to the proton beam parameters [CITE] for the future EURISOL facility are given.
PACS: 07.77.Ka – Charged-particle beam sources and detectors / 28.60.+s – Isotope separation and enrichment / 29.25.-t – Particle sources and targets / 41.75.Ak – Positive-ion beams
© EDP Sciences, Springer-Verlag, 2007