First results of the CALICE SDHCAL technological prototype

Abstract

The CALICE Semi-Digital Hadronic Calorimeter (SDHCAL) prototype, built in 2011, was exposed to beams of hadrons, electrons and muons in two short periods in 2012 on two different beam lines of the CERN SPS. The prototype with its 48 active layers, made of Glass Resistive Plate Chambers and their embedded readout electronics, was run in triggerless and power-pulsing mode. The performance of the SDHCAL during the test beam was found to be very satisfactory with an efficiency exceeding 90% for almost all of the 48 active layers. A linear response (within 5%) and a good energy resolution are obtained for a large range of hadronic energies (5-80GeV) by applying appropriate calibration coefficients to the collected data for both the Digital (Binary) and the Semi-Digital (Multi-threshold) modes of the SDHCAL prototype. The Semi-Digital mode shows better performance at energies exceeding 30GeV

References in corpus (3)

• Performance of Glass Resistive Plate Chambers for a high granularity semi-digital calorimeter
• Performance of the first prototype of the CALICE scintillator strip electromagnetic calorimeter
• High Rate Resistive Plate Chamber for LHC detector upgrades

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• Resistive Plate Chamber Digitization in a Hadronic Shower Environment
• Recent results of the technological prototypes of the CALICE highly granular calorimeters
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• The semi-digital hadronic calorimeter (SDHCAL) for future leptonic colliders
• Performance of the SDHCAL technological prototype
• Performance study of large-area glass resistive plate chambers with different spacer configurations