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Hiroyasu TAJIMA (SLAC)19/02/2007, 14:00Invited TalkThe origin of cosmic rays has been a great mystery since they were discovered by Victor Hess in 1912. The AGASA observation of ultra-high- energy cosmic rays (UHECR) possibly beyond the GZK cutoff stimulated the field a great deal. In addition, the Kamiokande detection of neutrinos from SN1987A and the H.E.S.S. detection of TeV gamma-rays from supernova remnants demonstrated the...Go to contribution page
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Frédéric Druillole (Saclay)19/02/2007, 14:50Contributed TalkThe ANTARES telescope is a device of a 0.1 km size to detect high energy neutrinos. It is located in the Mediterranean Sea at a depth of 2500 meters. It consists of a three-dimensional matrix of optical modules (OM) containing photomultiplier tubes. As of September 2006 two complete lines and an instrumentation line, called MILOM, are deployed and fully operational for data taking....Go to contribution page
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Marcos Dracos (CNRS/IN2P3 Université Louis Pasteur)19/02/2007, 15:15Contributed TalkThe main task of the Target Tracker of the long baseline neutrino oscillation OPERA experiment, is to locate in which of the target elementary constituents, the lead/emulsion bricks, the neutrino interactions have occurred and also give calorimetric information about each event. The technology used consists in walls of two planes of long plastic scintillator strips, one per...Go to contribution page
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Mikhail Danilov (ITEP)19/02/2007, 16:10Contributed TalkThe CALICE collaboration is presently constructing a test hadron calorimeter (HCAL) with 8000 scintillator tiles read out by novel Geiger mode semicon- ductor photo detectors - Silicon Photomultipliers (SiPMs). This prototype is the first device which uses SiPMs on a large scale. We present the design of the HCAL including scintillator tile - WLS fiber - SiPM systems, mechan- ics,...Go to contribution page
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64. Single photon timing resolution and detection efficiency of the DASIPM silicon photo-multipliersGianmaria Collazuol (Scuola Normale Superiore, Pisa)19/02/2007, 16:35Contributed TalkSilicon photo-multipliers (SiPM) consist in matrices of tiny, passive quenched avalanche photo-diodes connected in parallel and operated in Geiger mode. Their capability to detect low optical photon fluxes with unprecedented amplitude resolution and their extreme single photon timing resolution make SiPM’s suitable for many applications. The DASIPM 1 collaboration between the Italian...Go to contribution page
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Satoru Uozumi (Shinshu University)19/02/2007, 17:00Contributed TalkThe Multi Pixel Photon Counter is a novel semiconducting photon counting device made by Hamamatsu Photonics K.K. based on concept of Silicon Pho- tomultiplier. The MPPC consists of 100-1600 APD (avalanche photo-diode) pixels, and each pixel works in limited Geiger mode with inverse bias voltage around 80 volts, which is a few volts above breakdown voltage. The MPPC has excellent...Go to contribution page
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Christian Joram (CERN)19/02/2007, 17:25Contributed TalkThe X-HPD concept is a modern implementation of the Dumand and Lake Baikal approach to large area photon detectors, primarily aimed for water based Cherenkov detectors. The main components are an almost spherical vacuum tube of 8-inch diameter and a LYSO scintillation crystal mounted in the centre of the tube. The scintillation light produced after the impact of a photoelectron which...Go to contribution page
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Robert Scheuermann (PSI)19/02/2007, 17:50Contributed TalkThe development of scintillation detectors to be used in a high magnetic field environment requires novel photodetectors to substitute photomultiplier tubes (PMTs). Avalanche microchannel photodiodes (AMPDs) are competitive to PMTs in terms of gain and photon detection efficiency and insensitive to magnetic fields. In this work we use AMPD arrays to build fast timing and large area...Go to contribution page
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