Constructional Design and Theoretical Simulation of Novel Telescope System for Charged Particle Detection

In order to study the reaction mechanism of exotic nuclei far from β stability line based on complete kinematic measurement on the Radioactive Ion Beam Line in Lanzhou (RIBLL1) at the Heavy-Ion Research Facility in Lanzhou (HIRFL), a charged particle detector array, which is composed of multiple identical telescope systems, is needed to be developed. Each telescope, a full function detector module, consists of a double-side silicon strip-detector (16×16) with thickness of 65 μm, a pixel-silicon detector with 16 (4×4) pixels with thickness of 1 000 μm, and an array of 4×4 CsI(Tl) crystals with length of 5 cm which are read out by avalanche photo diodes (APD). The detector array has performance characteristics of high energy resolution over a wide dynamic range in energy, reasonable position resolution and large solid-angle coverage. It also can detect multiple particles simultaneously. In this work, a detailed simulation of the detector module was performed based on Geant4. With the simulation and the experimental tests of each part of the detector module, the design construction and a whole predicting performance of the detector module were given.