2025/11/11 by Jiaxuan Wang, Zhen Wang, Wang, Jiaxuan +19
Physics and Astronomy · #Astro and Planetary Science #FOS: Physical sciences #Gamma-ray bursts and supernovae #High Energy Physics - Experiment (hep-ex) #Pulsars and Gravitational Waves Research
paper · doi:10.48550/arxiv.2511.07944
openalex publication_date 2025/11/11 · openalex created_date 2025/11/13 · openalex updated_date 2026/08/01
The Very Large Area Gamma-ray Space Telescope Pathfinder (VLAST-P), as the technology validation satellite for the VLAST mission, is designed to observe high-energy solar bursts on orbit. The CsI electromagnetic calorimeter (ECAL) is one of the key sub-detectors of VLAST-P. To investigate the on-orbit energy calibration method of the ECAL, a Geant4-based simulation of VLAST-P was carried out. The results show an energy resolution better than 10% in the 0.1 to 5 GeV range and a linearity deviation below 2%. A dedicated minimum-ionization-particle (MIP) calibration method was developed to ensure accurate energy reconstruction and to monitor detector stability throughout the in-orbit calibration period.