Conveners
Photon Detectors: Photodetectors & PId
- Fulvio Tessarotto (Istituto Nazionale di Fisica Nucleare)
- Fabio Gargano (INFN-Bari)
The cluster counting technique represents a very promising alternative to the traditional ways of integrating the ionization charge for particle identification in drift chambers. It takes advantage of the Poisson nature of the primary ionization process and offers a more statistically robust method to infer mass information. Simulation studies prove that cluster counting allows reaching a...
After the realization of the MWPCs with CsI PC for the RICH detector of the COMPASS experiment at CERN SPS, the COMPASS RICH was upgraded with four novel gaseous Photon Detectors (PD) based on MPGD technology, never used before in RIChes, for a total active area of 1.5 m2. The new PDs consist of two layers of THGEMs, the first also acting as a reflective PC thanks to CsI coating, and a bulk...
With the advent of new facilities for radioactive ion beams mainly rich in neutrons, SPES @ LNL, FRAISE @ LNS and FAIR @ GSI only to give some examples, the detection of neutrons among charged particles in Heavy radioactive Ion collisions became mandatory, with high angular and energy resolutions, and the construction of new detection systems suitable for this experimental purpose becomes both...
Hadron particle identification (PID) in LHCb is performed by two Ring Imaging Cherenkov (RICH) detectors. The system consists of an upstream detector, the RICH1, and a downstream detector, the RICH2, which use different radiators to provide PID to particles with momentum in the range 2-100GeV. In Run3 the photon detectors are composed by Multi-Anode Photo-Multipliers planes, which have good...
The ALICE collaboration is proposing a new apparatus, ALICE 3, to investigate the Quark Gluon Plasma
(QGP) properties, exploiting precise measurements of heavy-flavour probes as well as electromagnet-
ic radiation. In this context, conceptual studies for the development of a RICH detector for ALICE 3 are ongoing. The proposed baseline layout is a proximity-focusing RICH, using aerogel (n =...
Silicon photomultipliers (SiPM) are candidates selected as the potential photodetector technology for the dual-radiator Ring-Imaging Cherenkov (dRICH) detector at the future Electron-Ion Collider (EIC). SiPM optical readout offers several advantages being cheap, highly efficient and insensitive to the high magnetic field (~ 1.5 T) expected at the sensor plane in the experiment. On the other...
The Time-Of-Propagation (TOP) is the particle identification detector in the barrel region of the Belle II experiment. The detector uses quartz bars acting as Cherenkov radiators and Micro-Channel-Plate PMTs as photodetectos. Three generations of MCP-PMT are currently installed in the TOP detector. The SuperKEKB accelerator shutdowns of 2023 and 2027 will be used to upgrade the detector with...
Silicon Photo Multipliers aim to be a promising technology in the next generation experiments, based on ultra-low background large volume detectors searching for rare events. Novel photosensors with high performance at cryogenic temperature have been developed by Fondazione Bruno Kessler and integrated by Laboratori Nazionali del Gran Sasso in large area photodetectors, thus opening the...
Particle identification is a crucial aspect of most particle physics experiments.
In particular for space experiments, due to the limited downlink bandwidth and to the necessity to stimulate multimessenger observations, it is of paramount importance to design an experiment which is able to apply online triggers to identify the impinging particles.
Currently, we are living in extraordinary...
The Imaging Atmospheric Cherenkov Telescopes (IACTs) represent one of the most successful detection techniques to observe gamma rays of astrophysical origin with energy above few tens of GeV. This technique is based on the detection of Cherenkov light emitted in atmosphere by particle showers which allows the reconstruction of energy and direction of the incoming particles. Fast and high...
