2. Particle Physics (CSN1)
Gas detectors: general principles
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Europe/Rome
Aula Salvini (LNF INFN)
Aula Salvini
LNF INFN
Description
Gas-based detectors measure the trajectories of charged particles through the ionisation electrons that are deposited in the gas. An electric field, and sometimes a magnetic field, guide(s) these electrons to amplification structures where an avalanche occurs. Avalanches produce electrons and ions and it is their motion that generates electric signals on the read-out electrodes. In this presentation we review these mechanisms.