Tracker charge identification and measurement of the proton flux in cosmic rays with the DAMPE experiment

Vitillo, Stefania

doi:10.13097/archive-ouverte/unige:113361

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Title		Tracker charge identification and measurement of the proton flux in cosmic rays with the DAMPE experiment
Author		Vitillo, Stefania
Director		Wu, Xin
Defense		Thèse de doctorat : Univ. Genève, 2018 - Sc. 5290 - 2018/12/06
Abstract		Many detectors on the ground, on balloons and in space already made a lot of efforts to improve cosmic-ray measurements, and several others are currently continuing them. The DAMPE detector is designed to pursue this task. The DAMPE Silicon Tungsten tracKer (STK) was assembled after testing individually all its components. The signals of the read-out chips of the silicon ladders were calibrated with an analysis based on ground and orbit data. A charge-loss correction of the tracker response was performed on-ground and on-orbit. We performed an analysis on 30 months of data from DAMPE, dedicated to calculate precisely the proton flux. The proton flux measured with this analysis allowed to improve the current knowledge of the energy dependence of the proton spectrum, which is the key element in understanding the origin, propagation and acceleration of cosmic rays in the Universe.
Keywords		DAMPE — STK — Tracker — Cosmic rays — Proton — Flux — Space detection
Identifiers		DOI: 10.13097/archive-ouverte/unige:113361 URN: urn:nbn:ch:unige-1133614
Full text		Thesis (55 MB) - Free access
Structures		Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire
Research group		Groupe Wu
Citation (ISO format)		VITILLO, Stefania. Tracker charge identification and measurement of the proton flux in cosmic rays with the DAMPE experiment. Université de Genève. Thèse, 2018. doi: 10.13097/archive-ouverte/unige:113361 https://archive-ouverte.unige.ch/unige:113361