Title
| Parameters of the preproduction series SiPMs for the CMS HCAL phase I upgrade |
Author(s)
| Heering, A (Notre Dame U.) ; Musienko, Yu (Notre Dame U. ; Moscow, INR) ; Ruchti, R (Notre Dame U.) ; Wayne, M (Notre Dame U.) ; Karneyeu, A (Moscow, INR) ; Postoev, V (Moscow, INR) |
Publication
| 2016 |
Number of pages
| 4 |
In:
| Nucl. Instrum. Methods Phys. Res., A 824 (2016) 115-118 |
In:
| Frontier Detectors for Frontier Physics: 13th Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 24 - 30 May 2015, pp.115-118 |
DOI
| 10.1016/j.nima.2015.11.035
|
Subject category
| Detectors and Experimental Techniques |
Accelerator/Facility, Experiment
| CERN LHC ; CMS |
Abstract
| In 2012 the HCAL SiPM photo sensor upgrade was approved for the increased luminosity (5*10 34 ) of SLHC. The upgrade will replace the current hybrid photodiodes (HPDs) with multi-pixel Geiger-mode avalanche photodiodes, also known as silicon photomultipliers (SiPMs). A key aspect of the upgrade to SiPMs is to add longitudinal segmentation and improve signal to noise to compensate for scintillator radiation damage. After 5 years of R&D; with multiple companies we developed custom large dynamic range SiPMs with large PDE and small ENC. To ensure good mechanical alignment and easy handling of the large number of production channels (>20,000) we have developed a custom ceramic package with a very thin 0.3 mm quartz window with Kyocera. Each package holds 8 channels of SiPMs. |
Copyright/License
| Elsevier B.V. |