On High Resolution Charged Particle Spectroscopy with Side-Entry Ge(Li) Detectors in the Energy Range of the Juelich Cyclotron

Planar Ge(Li) detectors of side-entry type were prepared with the aim of minimizing dead layer effects. The cryostat employed was connected to a scattering chamber without the use of a window. Detector resolution was determined for protons of 44.1 MeV, deuterons of 62.9 and 80.7 MeV and ∝-particles of 155.5 MeV, elastically scattered on a Au target under θlab = 15°, as well as for 83.9 MeV protons from a (d,p)-reaction. Overall resolution figures ΔE(fwhm)/E, comprising contributions from experimental set-up and detector system, were in the range from 3.4 to 4.4 × 10-4.