Design and construction of a position-sensitive rotating implantation target system with β - γ discrimination capabilities

A rotating implantation target system has been designed for use at the RIKEN projectile fragment separator. While the original design is for the study of short β-decay lifetimes, the versatility of the device is also noted. The ability of the position-sensitive detector system to distinguish β and γ rays is studied, and the correlation of implantation position to beam position for purposes of particle identification is also described. Future improvements and experiments are planned and described briefly. The target detector system represents a simple, inexpensive, yet efficient way of conducting online implantation experiments where particle identification and rapid measurements are desired.