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          Institute: MPI für Kernphysik     Collection: Physics of Quantum Dynamics in Atomic Fragmentation     Display Documents

ID: 522359.0, MPI für Kernphysik / Physics of Quantum Dynamics in Atomic Fragmentation
Feasibility Study of an Optical Fibre Sensor for Beam Loss Detection Based on a SPAD Array
Authors:Intermite, A.; Putignano, M.; Welsch, C. P.
Date of Publication (YYYY-MM-DD):2009
Title of Journal:Joint Accelerator Conferences Website (JACoW)
Volume (in Journal):DIPAC 2009
Start Page:228
End Page:230
Sequence Number:TUPB27
Physical Description:electronic resource
Name of Conference/Meeting:9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators (DIPAC 2009)
Place of Conference/Meeting:Basel, Switzerland
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Review Status:not specified
Audience:Experts Only
Abstract / Description:This contribution describes an optical fibre sensor
based on the use of a silicon photomultiplier (SiPM)
composed of an array of Single Photon Avalanche
Detectors (SPADs). This sensor will be used for the
detection and localization of particle losses in accelerators by exploiting the Cerenkov Effect in optical fibres. As compared to conventional vacuum photomultipliers, the SPAD array allows for maximizing the geometrical efficiency of Cerenkov photon detection. The array can be directly integrated into the fibre end while retaining the same quantum efficiency (20%) in the wavelength range of interest. The SiPM is intrinsically very fast due to its small depletion region and extremely short Geiger-type discharge, which is in the order of a few hundreds of picoseconds. Therefore, the combined use of optical fibres and SiPMs seems a promising option for a modern Cherenkov detector featuring subnanosecond timing,
insensitive to magnetic fields, capable of single photon
detection and allowing for the possibility of realization in
the form of a smart structure. We present the layout and
operating principle of the detector, its characteristics, and outline possible fields of application.
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Independent Research Groups/Quantum Systems and Advanced Accelerator Research (C. Welsch)
External Affiliations:Cockcroft Institute and University of Liverpool, UK
Identifiers:URL:http://accelconf.web.cern.ch/AccelConf/d09/papers/... [open access]
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