Current Status and Future Perspectives of the LUCIFER Experiment
Figure 4
Particle discrimination in ZnSe. The light emitted by the ZnSe crystal (a) and the shape of the same light pulses (b) are reported as a function of the energy released in the ZnSe bolometer. A 228Th -source was used to produce events (blue), up to 2615 keV (208Tl), while a smeared source was placed under the crystal to provide a continuum of ’s extending to lower energies (red). The (heat channel) -axis is (energy) calibrated using the most intense -peaks. The extremely different energy scale between and events can be observed, as discussed in Section 6.1. The blue and red points of the upper plot are determined by a cut on the bottom plot.
