The SiRi Particle-Telescope System

TL;DR

The paper introduces a silicon particle-telescope system optimized for nuclear reaction measurements, featuring segmented detectors and specific angular coverage to enhance level density and gamma-ray strength function studies.

Contribution

It presents a novel silicon telescope system with segmented detectors and optimized geometry for improved nuclear reaction measurements using the Oslo method.

Findings

Designed eight trapezoidal modules for 8 forward angles

Achieved low leakage current with guard rings on detectors

Optimized for level density and gamma-ray strength function measurements

Abstract

A silicon particle-telescope system for light-ion nuclear reactions is described. In particular, the system is designed to be optimized for level density and gamma-ray strength function measurements with the so-called Oslo method. Eight trapezoidal modules are mounted at 5 cm distance from the target, covering 8 forward angles between theta = 40 and 54 degrees. The thin front dE detectors (130 micrometer) are segmented into eight pads, determining the reaction angle for the outgoing charged ejectile. Guard rings on the thick back E detectors (1550 micrometer) guarantee low leakage current at high depletion voltage.