Study of the performances of the DAMPE silicon-tungsten tracker after five years of mission. Issue 1 (1st November 2022)

• Record Type: Journal Article
• Authors: Catanzani, E; Ambrosi, G; Azzarello, P; Perrina, C; Iónica, M; Tykhonov, A; Wu, X
• Is Part Of: Journal of physics. Volume 2374 Issue 1(2022)
• Publication Date: 2022-11-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2374/1/012067
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract : DAMPE (DArk Matter Particle Explorer) is a satellite-based experiment launched in December 2015 and smoothly taking data after five years of mission. The Silicon-Tungsten Tracker (STK) is characterized by 6 double layers of silicon micro-strip detectors, for a total detection area of 7 m 2, and three 1 mm thick tungsten plates, placed in the mechanical support structure, aimed to the photon conversion in e ± pairs. The STK has a double role: precise reconstruction of the track of charged particles with a spatial resolution around 40 μ m for most incident angles of the incoming particles, identification of the charge of the incoming cosmic rays. The STK performances are excellent after five years of continuous operation in space: in this contribution the STK in-orbit calibration and performances during the whole DAMPE mission will be presented.