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Speaker: |
Dr. Ivano Sarra |
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Host: |
Prof. Yong Liu |
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Time: |
13rd Nov，Thursday, 15:00 |
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Location: |
Multi discipline Building 122 |
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Indico： |
https://indico.ihep.ac.cn/event/27726 |
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Zoom： |
https://zoom.us/j/92966610692?pwd=AsmmcGyMY9lsaj5VHWs6d0OnkcsqUX.1 |
Abstract:
A new test beam campaign is planned for September 2025 at the CERN SPS to characterize the 3x3 module further designed er. A comparison will be made between a newly developed custom front-end with CAEN V1742 flash ADC digitizers and the CAEN DT5204 board. Additional tests will evaluate different wrapping and painting techniques to enhance light collection and will include beam monitor sensors to assess spatial resolution and detection efficiency. A new 7x7 prototype, composed of five layers and utilizing 1.3x1.3 cm² PbF₂ crystals, is under construction for 2026 testing. It is designed to contain showers of up to hundreds of GeV. Both the 3x3 and 7x7 modules use aluminum structures with 150 μm internal septa. In the 7x7 version, custom Kapton strips manage signal and bias routing while maintaining a 2 mm external aluminum shell in line with CRILIN’s semi-homogeneous design: crystal matrices alternate with SiPM layers along the depth. Simulation studies of the 7x7 prototype have been performed to evaluate the system’s energy resolution and linearity under realistic conditions.
About the speaker:
Ivano Sarra is a researcher at INFN Frascati National Laboratories, specializing in the design, construction, and coordination of electromagnetic calorimeters for particle physics. He obtained his PhD in Physics at the University of Rome Tor Vergata in 2012 and has since been involved in several international projects at the intensity and energy frontiers.Within the Mu2e experiment at Fermilab, he has served as coordinator for the electromagnetic calorimeter integration, managing the assembly and installation of two large disks of CsI crystals read out by UV-extended SiPMs, and contributing to irradiation studies, front-end electronics, and large-scale sensor procurement. He has also taken responsibility for the calorimeter photosensors since the early R&D phase, supervising irradiation campaigns and the production of over 4000 custom SiPMs. At LNF, he was the technical manager of the PADME experiment, overseeing calorimeter design and performance studies. More recently, he proposed and led the CRILIN calorimeter project for the Muon Collider, a semi-homogeneous system optimized for timing and particle flow reconstruction. He is vice-PI of the INFN CALORHINO project, which integrates calorimeter R&D for the Muon Collider within a national PRIN2022 initiative. He has authored more than 150 peer-reviewed publications (over 2000 citations, h-index 23), delivered numerous talks at international conferences, and received the “Ettore Pancini” prize of the Italian Physical Society for original contributions to calorimetry.