On-Beam Digital Pulse Shape Acquisition From NE102A- ${\rm BaF}_{2}$ Phoswich Detector

The use of NE102A-BaF₂ phoswich detector drastically improves the particle identification with respect to BaF₂ crystals. To better exploit the possibility of light ion discrimination we have applied digital signal processing to the signals, on-beam collected with NE102A-BaF₂ phoswich. We present the results obtained for the heavy ion charge identification (up to Z=50) and light particle mass identification, using digital pulse shape acquisition and a 12-bit, 2 GSample/s sampling analog to digital converter. The results concerning the response of BaF₂-plastic phoswich to the reaction products issued at forward angles in the collision of 35.1 MeV/u ¹²⁴Sn beam on ⁶⁴Ni target have been obtained at the Superconducting Cyclotron of the Laboratori Nazionali del Sud in Catania.