- Experimental study of the time resolution for particle detectors based on MRPC, SiPM and UFSD technologies
- Carnesecchi, Francesca <1990>
Subject
- FIS/01 Fisica sperimentale
Description
- The work here presented describes in details an extensive study of the time resolution of various detectors. Precise time measurements are of funda- mental importance both in particle and in medical physics; even more, an excellent time resolution (tens of ps) will be necessary for the next generation of colliders in high energy physics, facing also the challenging request of a high rate capability. Several detectors have been studied, spanning several technologies from gaseous to silicon: Multigap Resistive Plate Chamber (MRPC), Silicon PhotoMulti- plier (SiPM) and a new prototype of silicon detectors, the Ultra Fast Silicon Detector (UFSD). These studies have been performed both in a cosmic ray setup, at the INFN Bologna laboratories, and in a beam test setup, in the T10 and H8 beam lines at CERN. The R&D on time resolution for all the three technologies has been performed with different detector designs. The study showed promising results; indeed all the detectors reached a final time resolution smaller than 70 ps, with a minimum value of 35 ps. For the MRPC, an attempt to improve also the rate capability has been successfully realised. Moreover, a study based on data analysis has been performed for the ALICE TOF detector (based on the MRPC technology); possible degradations of the time resolution related to signals in two adjacent readout pads have been investigated and corrected, allowing an improvement of the final TOF time resolution.
Date
- 2018-04-18
Type
- Doctoral Thesis
- PeerReviewed
Format
- application/pdf
Identifier
urn:nbn:it:unibo-23465
Carnesecchi, Francesca (2018) Experimental study of the time resolution for particle detectors based on MRPC, SiPM and UFSD technologies, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Fisica