ABSTRACT

Downstream an eventual energy selection, all beamline components must be designed to transport, intercept, or detect 0.1-3-nA proton beams between ~70 and 230-250 MeV (therefore within a magnetic rigidity range of 1.2-2.4 Tm) or 0.02-1 particlenA ion beams between 125 and 400-450 MeV/nucl. (3.3-6.8 Tm) to any target station. The basic concept of the ion optics is an achromatic beam transport, which means  that the beam transport is independent of slight deviations of the intended beam energy. Wherever possible, the beam transport system consists of symmetric optical building blocks. The symmetry ensures a reduction of optical aberrations, reduces the  phase-space dependence, and minimizes the effects of small errors in the settings of beamline components.