Possible evolutions of rare isotope production methods and the associated instrumentation

In recent decades, an impressive progress was made in high intensity light and heavy ion accelerators, reaching now several hundreds kilowatts to megawatt average beam power. Simultaneously, large solid angle spectrometers were developed, preserving good resolution properties by the introduction of sophisticated high order corrections. For further progress in the study of the properties of nuclei far from stability, it will be important to optimize the global layout of the accelerator-experimental devices. It will be more and more important to take radiation safety concerns into account since the very conception of the devices. The global efficiency to obtain a result concerning the properties of a given nucleus depends not only on the detection efficiencies but also on the resolution of the measurement device. Another new frontier may open now, this is the optimization of the use of primary and secondary beams to avoid dumping of possibly useful beams, and utilize them for multiple purposes. Different aspects of this optimization will be discussed.