Study of the Global Alignment for the DAMPE Detector

Abstract

The Dark Matter Particle Explorer (DAMPE) is designed as a high energy particle detector for probing cosmic-rays and $\gamma -$rays in a wide energy range. The trajectory of the incident particle is mainly measured by the Silicon-Tungsten tracKer-converter (STK) sub-detector, which heavily depends on the precise internal alignment correction as well as the accuracy of the global coordinate system. In this work, we carried out a global alignment method to validate the potential displacement of these sub-detectors, and particularly demonstrated that the track reconstruction of STK can well satisfy the required objectives by means of comparing flight data and simulations.

18 pages, 11 figures

References in corpus (6)

• Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
• The DArk Matter Particle Explorer mission
• The on-orbit calibration of DArk Matter Particle Explorer
• Calibration and performance of the neutron detector onboard of the DAMPE mission
• Alignment procedure of the LHCb Vertex Detector
• Alignment of the CMS Silicon Strip Tracker during stand-alone Commissioning