Range sensitive telescope detector

A telescope for the identification of heavy ions over an extended energy range is described. The energy loss Δ E is measured with an ionisation chamber supplied with the range-sensitive charge collection system. The particle residual energy E can be measured with a solid state detector. Two modes of operation are available: a standard ΔEt − E identification, or a charge integration along the track with a continuous resistivity anode. By a proper formation of this resistivity, one can obtain an identification signal proportional to the Z value in a large range of incident energies.