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In: Journal of Instrumentation, 17 (5).
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Abstract
The Compact Muon Solenoid collaboration is designing a new high-granularity endcap calorimeter, HGCAL, to be installed later this decade. As part of this development work, a prototype system was built, with an electromagnetic section consisting of 14 double-sided structures, providing 28 sampling layers. Each sampling layer has an hexagonal module, where a multipad large-area silicon sensor is glued between an electronics circuit board and a metal baseplate. The sensor pads of approximately 1.1 cm2 are wire-bonded to the circuit board and are readout by custom integrated circuits. The prototype was extensively tested with beams at CERN's Super Proton Synchrotron in 2018. Based on the data collected with beams of positrons, with energies ranging from 20 to 300 GeV, measurements of the energy resolution and linearity, the position and angular resolutions, and the shower shapes are presented and compared to a detailed Geant4 simulation. © 2022 CERN for the benefit of the CMS collaboration.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Instrumentation |
| Publisher: | Institute of Physics |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Germanium alloys; Germanium compounds; Particle detectors; Positrons; Silicon; Silicon detectors; Silicon sensors; Solenoids, Astroparticle physics; Compact Muon solenoids; Detector systems; Electromagnetic calorimeter; Large detector system for particle and astroparticle physic; Large detectors; Micro-strips; New high; Si microstrip and pad detector; Silicon pads, Calorimeters |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 29 Sep 2022 06:09 |
| Last Modified: | 29 Sep 2022 06:09 |
| URI: | https://eprints.iisc.ac.in/id/eprint/76816 |
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