Speaker
Description
The Beam-monitor with Extreme Range (BeER) detector is an innovative detector developed and built at the INFN Sezione di Firenze. The detector employs a matrix of 3x3 bare photodiodes repeated for six layers to measure the energy loss through ionization of charged particles traversing the silicon sensors. The silicon sensors are read-out via a Front End Electronics based on the ASIC HiDRA, which is characterized by an extremely large dynamic range: from few fC to 52.6 pC. Thanks to its design, BeER is a powerful detector for the characterization of different types of particle beams. In this contribution, we describe the detector design and its two main applications for characterization of particle beams that we have extensively studied so far through multiple beam tests.
The first application is the characterization of the SPS heavy-nuclei beam. BeER is able to measure the beam composition and to provide event-by-event charge identification from Z=1 up to Z=82 (the charge of the primary Lead that is fragmented to produce the beam) with a very good charge resolution.
The second application is not a charge measurement, but a multiplicity measurement. Specifically, multiple beam tests at the Beam Test Facility of Frascati demonstrate the capability of BeER to measure with a very good linearity the multiplicity of electrons with energies of a few hundred MeV per spill: from the single particle up to about fifteen thousands particles per spill.
In this contribution we will describe and discuss the characterization of the BeER performance for charge measurement and multiplicity measurement.