Speaker
Zoltan Gecse
(Fermi National Accelerator Lab. (US))
Description
The High Granularity Calorimeter (HGCAL) is the technology choice of the CMS collaboration for the endcap calorimetry upgrade planned to cope with the harsh radiation and pileup environment at the High Luminosity-LHC. The HGCAL is realized as a sampling calorimeter, including an electromagnetic compartment comprising 28 layers of silicon pad detectors with pad areas of 0.5 — 1.0 cm^2 interspersed with absorbers made from tungsten and copper to form a highly compact and granular device. A silicon-based single-layer prototype has been constructed and tested in beams at FNAL. The prototype includes many of the features required for this challenging detector, including a complex PCB glued directly to the sensor, using through-hole wire-bonding for signal readout and ~5mm spacing between layers – including the front-end electronics and all services. We present results from first tests of this prototype with beams of electrons and pions of up to 32 GeV/c as well as 120 GeV/c protons, and describe the plans for more extensive prototypes to be tested in beams at FNAL and CERN in 2016.
Primary author
Zoltan Gecse
(Fermi National Accelerator Lab. (US))
