A novel charge reconstruction algorithm applied to the HERD prototype silicon charge detector

Abstract

The High Energy Cosmic-Radiation Detection (HERD) facility is a space astronomy and particle astrophysics experiment planned to be installed on the China Space Station. HERD can detect high-energy cosmic rays ranging from GeV to PeV and high-energy gamma rays. The silicon charge detector (SCD) is one of the subdetectors of HERD, measuring the charge and trajectory of incident ions. An ion beam test of the SCD prototype was conducted at CERN in 2022. A novel charge reconstruction algorithm based on the capacitive coupling was developed to study the charge resolution of the SCD prototype, and compared with the classical reconstruction algorithm.