Description
Cherenkov Detectors in Nuclear, Particle Physics and Astroparticle Physics; Photon Detection Techniques
Poster sessions Tuesday 4th and Wednesday 5th
Dr
Johann Marton
(Stefan Meyer Institute)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
Silicon-based photon sensors (SiPMs) working in the Geiger-mode represent an elegant solution for the the readout of particle detectors working at low-light levels like Cherenkov detectors. Especially the insensitivity for magnetic fields makes this kind of sensors suitable for modern detector systems in subatomic physics which are usually employing magnets for momentum resolution. On the...
Xavier Bertou
(Centro Atomico Bariloche)
04/05/2010 10:15
Cherenkov detectors in astroparticle physics
Poster
Water Cherenkov Detectors have the nice property of being mostly calorimeters for cosmic rays electrons and photons, while providing a clear signal for muons. At large energy deposited in the detector, they observe small extended air showers. This makes them interesting detectors to study the cosmic ray secondaries background.
Using background histograms of the total energy deposited in...
Dr
Antonios Leisos
(Hellenic Open University)
04/05/2010 10:15
Cherenkov detectors in astroparticle physics
Poster
We report on a simulation study of the calibration potential offered by floating
Extensive Air Shower (EAS) detector stations
(HELYCON), operating in coincidence with a Very Large Volume Cherenkov
Neutrino telescope. We describe strategies in
order to investigate for possible systematic errors in reconstructing the direction
of energetic muons as well as to determine the absolute...
Mme
Elena Pavlovna Cherenkova
(P.N.Lebedev Physical Institute of the Russian Academy of Sciences; Russia, Moscow, Leninskiy prospekt, 53)
04/05/2010 10:15
Pattern recognition and data analysis
Poster
Name Pavel Cherenkov is known in physics as the name of author who discovered new emission and proposed to use the emission for particles properties detection. At the same time Pavel Cherenkov took part actively in international scientific and scientifically-organizational projects, in international social life.
As international situation was changing, participation was held under variable...
Prof.
Valentin Ivanov
(Muons, Inc.)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
We have developed a theoretical method for calculating secondary electron emission (SEE)
yields. The method uses Monte Carlo simulation, empirical theories, and close comparison to
experiment, in order to parameterize the SEE yields of highly emissive materials for microchannel plates. We have successfully applied this method to bulk Al2O3, a highly emissive material as well as to thinly...
M.
Thomas Conneely
(University of Leicester and Photek LTD)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
Photek, in collaboration with the University of Leicester space research centre, are pursuing a number of R&D projects aimed at developing systems for detection of single photon events with time resolution of the order of 10 ps. This involves the development of new detectors and accompanying electronics, utilising the HPTDC and NINO chips developed at CERN. An overview of R&D efforts will be...
M.
Thomas Krähenbühl
(ETH Zurich)
04/05/2010 10:15
Cherenkov detectors in astroparticle physics
Poster
Geiger-mode Avalanche Photo Diodes (G-APD) bear the potential to significantly improve the sensitivity of Imaging Air Cherenkov Telescopes (IACT).
Therefore we are currently building the First G-APD Cherenkov Telescope (FACT) by refurbishing an old IACT with a mirror area of 9 square meters and construct a new, fine pixelized camera using novel G-APDs. The main goal is to evaluate the...
Prof.
Valentin Ivanov
(Muons, Inc.)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
Micro channel plate (MCP) amplifiers are commonly used in detectors of fast time signals with a pico-second resolution. The main parameters of the MCP amplifier, such as the gain factor and time resolution are strongly dependent on the work regime of the device. The saturation effects take place for a high-level input signal. In our paper these effects have been studied numerically for large...
Dr
Bayarto Lubsandorzhiev
(Institute for Nuclear Research of RAS)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
We review large sensitive area photodetectors developed for Cherenkov neutrino arrays like neutrino telescopes - classical photomultipliers (PMTs) and hybrid phototubes (HPDs). We present results of studies of recently developed large sensitive area hemispherical PMTs including PMTs with high quantum efficiency photocathodes. We also present results of studies of new very fast scintillators...
Dr
Serguei Vorobiov
(LPTA UMR 5207 CNRS & UM2)
04/05/2010 10:15
Technological aspects of Cherenkov detectors
Poster
The European astroparticle physics community aims to design and build the next generation array of Imaging Atmospheric Cherenkov Telescopes (IACTs), that will benefit from the experience of the existing H.E.S.S. and MAGIC detectors and further expand the very-high energy astronomy domain.
In order to gain an order of magnitude in sensitivity in the 10 GeV to > 100 TeV range, the Cherenkov...
Dr
Oswald Siegmund
(University of California)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
Microchannel plate devices are powerful detection devices for Cherenkov light, with good imaging and timing characteristics. However, currently the largest format devices available are of the order of 5cm, and these are expensive compared with photomultiplier tubes. One significant problem in covering large areas with such devices is both the cost, and the difficulty in fabricating large size...
Prof.
Peter Krizan
(University of Ljubljana and J. Stefan Institute)
04/05/2010 10:15
Poster
One of the candidates for the photon detector of the Belle II aerogel radiator RICH is the micro-channel plate photomultiplier tube (MCP-PMT). The MCP-PMT works very well in a high magnetic field of 1.5T. It shows a good performance to detect single photons with an excellent timing precision. In a 2GeV/c electron beam at KEK we have tested two tubes to investigate the photon yield and...
Dr
oscar martinez
(Universidad autonoma de puebla)
04/05/2010 10:15
Cherenkov detectors in astroparticle physics
Poster
E. Ponce1, G. Garipov2, B. Khrenov2, P.Klimov2, O.Martinez1, M.Panasyuk2, H. Salazar1.
1 BUAP, Puebla, Mexico.
2 Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, Russia.
Abstract
Recent measurements of the UV atmosphere glow have reported bright and fast Transient Luminous Events (TLE) in the atmosphere. Some of TLE features related with its space image and...
Dr
Oleg Kalekin
(Erlangen Centre for Astroparticle Physics)
04/05/2010 10:15
Cherenkov detectors in astroparticle physics
Poster
The KM3NeT project aims to design and to construct at least a
cubic kilometre scale neutrino telescope in the Mediterranean
Sea. The main task is to instrument this deep-sea water volume with
optical modules, each housing one or several photomultiplier tubes
(PMTs).
3-, 8- and 10-inch PMTs from ET Enterprises, Hamamatsu and MELZ-FEU
have been investigated as candidates for the...
Joao Veloso
(I3N, Physics Department - University of Aveiro)
04/05/2010 10:15
Photon detection for Cherenkov counters
Poster
Ion Back Flow (IBF) in gaseous detectors presents a drawback in many applications, such as TPCs, RICH detectors and gaseous photosensors, among others. Following the success of the MHSP operating in flipped reverse mode, which reached an IBF reduction approaching 10^-4, a new concept based on this one though with optimized geometry and aiming applications needing large detection areas, was...
