Speaker
Dr
Angela Papa
(Paul Scherrer Institut)
Description
High position and timing resolutions can be simultaneously achieved today using scintillation material coupled with SiPM.
An active target for the MEG experiment based on very thin scintillating fibers readout by SiPMs operating in a high magnetic field (1.3 T) is considered. The tool should provide a very precise measurement of the muon decay vertex and its timing, with a consequently improvement on the positron momentum and angular variable resolutions into the MEG experiment.
The high sensitivity and high quantum efficiency of SiPM allows us to collect few photoelec- trons and to detect the positron and to measure its timing.
Thanks to the fast time response the device can be operated in a high rate environment and applications on beam monitoring are also considered. The detector can be used to measure muon beam rate at the highest intensity on the world and to obtain 1- and 2-dimensional beam profile.
A particle ID can be performed to distinguish between positrons and muons and the information about different particles can be measured in parallel.
Measurements are done using a fast signal digitize (DRS4 Evaluation board) and a custom waveform analysis can be easy implemented.
Primary author
Dr
Angela Papa
(Paul Scherrer Institut)
