Nov 19 – 21, 2014
Europe/Zurich timezone

Characterization after neutron irradiation of Silicon Diodes for the CMS High Granular Calorimeter (HGCAL)

Nov 19, 2014, 2:55 PM
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium


503-1-001 (Council Chamber) on 19th Nov ; 500-1-001(Main auditorium) on 20th in the morning and 4-3-006 (TH auditorium) in the afternoon; 500-1-001(Main auditorium) on 21st Nov.
Show room on map


Esteban Curras Rivera (Universidad de Cantabria (ES))


The CMS collaboration is planning to upgrade the forward calorimeters as these will not be sufficiently performant with the expected HL-LHC (High Luminosity LHC) conditions. One of the proposed calorimeter options is the High Granularity Calorimeter (HGC). It is realized as a sampling calorimeter with layers of silicon detectors that feature very high longitudinal and lateral granularities and a coarser segmentation backing hadronic calorimeter based on scintillators as active material. For the electromagnetic calorimeter (EE) 420m2 of silicon detectors and for the Front Hadronic calorimeter (FH) 250m2 of silicon detectors with a total of 5.1M channels are anticipated. The sensors are realized as pad detectors of a size in the order of 1 cm2 with an active thickness between 100 and 300 um depending on the position respectively the expected radiation levels. We present our first results after irradiation of 300µ, 200µ and 100µ n-on-p and p-on-n devices that have been made up to fluxes of 1.5E16 n/cm2 at Ljubljana and have been measured at Hamburg.

Primary author

Esteban Curras Rivera (Universidad de Cantabria (ES))

Presentation materials