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2-7 mai 2010
Oustau Calendal Conference Center
Europe/Paris timezone
If you participated in the conference, please consider sending photos and poster contributions, unless done so already!
Accueil > Contribution List

Liste des présentations

Affichage94 contributions sur 94
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Novel Cherenkov imaging techniques
The PANDA experiment, part of the planned FAIR upgrade to GSI, Darmstadt, will aim to study modern hadronic physics with unprecedented accuracy and precision. Excellent particle identification of both charged and neutral particles is necessitated to achieve PANDA's physics aims. Two Detection of Internally Reflected Cherenkov (DIRC) detectors are foreseen for charge particle identification, o ... Plus
Présenté par Mr. Euan COWIE on 6 mai 2010 à 10:00
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
A new EAS Cherenkov array has recently been put into the full operation in the Tunka Valley in Siberia, Russia. The main goal of the new detector is to study primary cosmic rays energy spectrum and mass composition in the energy range of 10**15 eV -10**18 eV. The array consists of 133 optical modules covering 1 km**2 area. The optical modules (OMs) are assembled in 19 clusters with 7 OMs in each c ... Plus
Présenté par Dr. Bayarto LUBSANDORZHIEV on 4 mai 2010 à 09:00
Type: Oral presentation Session: Technological aspects of Cherenkov detectors
Thématique: Technological aspects of Cherenkov detectors
Hadron identification in the LHCb experiment is performed by Ring Imaging Cherenkov (RICH) detectors. The system is composed by two RICH detectors, three radiators, imaging optics and 484 Hybrid Photon Detectors (HPDs). The refractive index of the radiators (16 aerogel tiles, C4F10 and CF4) is calibrated using saturated (beta=1) tracks and expected changes due to atmospheric pressure var ... Plus
Présenté par Mr. Christopher BLANKS on 6 mai 2010 à 10:50
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 other ha ... Plus
Présenté par Dr. Johann MARTON on 4 mai 2010 à 10:15
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
The High Energy Stereoscopic System (H.E.S.S.) is a system of four Cherenkov telescopes for GeV/TeV gamma-ray astronomy. By observing Cherenkov light emitted by particles in gamma-ray induced air showers the direction and energy of the primary gamma-ray can be reconstructed. A stereoscopic view of the air shower is achieved by combining the information from the four telescopes, allowing ... Plus
Présenté par Dr. Petter HOFVERBERG on 3 mai 2010 à 15:00
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Cherenkov detectors in astroparticle physics
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 detectors ... Plus
Présenté par Xavier BERTOU on 4 mai 2010 à 10:15
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Cherenkov detectors in astroparticle physics
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 position ... Plus
Présenté par Dr. Antonios LEISOS on 4 mai 2010 à 10:15
Présenté par Dr. Jurgen ENGELFRIED on 3 mai 2010 à 09:30
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Pattern recognition and data analysis
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 circ ... Plus
Présenté par Mrs. Elena Pavlovna CHERENKOVA on 4 mai 2010 à 10:15
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 deposi ... Plus
Présenté par Prof. Valentin IVANOV on 4 mai 2010 à 10:15
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Cherenkov imaging in particle and nuclear physics experiments
Correlation phenomena occurring in Cherenkov radiation are considered which are related to fluctuations of the charge states of multiply charged accelerated ions in a medium. The additional correlation contribution to the radiation is determined by the root-mean-square deviation of the ion charge from its equilibrium value and is responsible for the nonzero radiation yield in the event that the th ... Plus
Présenté par Prof. Vyacheslav MALYSHEVSKY on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 2 (Summary)
It is planned to install a disc DIRC counter in the WASA experiment at the COSY proton storage ring in Juelich. The purpose of this counter is to improve for 400 MeV to 800 MeV protons the kinetic energy measurement in the forward direction, measuring their speed at the few per mille level. The disc DIRC is to be placed downstream of the WASA tracking counters in front of stacked plastic sc ... Plus
Présenté par Dr. Klaus FÖHL on 6 mai 2010 à 10:00
Type: Oral presentation Session: Cherenkov Imaging in particle and in nuclear physics experiments
Thématique: Cherenkov imaging in particle and nuclear physics experiments
A Hadron Blind Detector (HBD) has been developed for an upgrade of the PHENIX experiment at RHIC. The detector installed in 2008 was successfully operated during the p+p run of 2009 and is presently taking Au+Au data at sNN = 200 GeV. The HBD is a windowless Cherenkov detector, operated with pure CF4 in a special proximity focus configuration. The detector consists of a 50 cm long radiator dir ... Plus
Présenté par Prof. Itzhak TSERRUYA on 3 mai 2010 à 12:30
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 pre ... Plus
Présenté par Mr. Thomas CONNEELY on 4 mai 2010 à 10:15
Type: Oral presentation Session: Novel Cherenkov imaging techniques
Thématique: Novel Cherenkov imaging techniques
A detector concept is described that has been developed as a possible solution to the identification of low momentum hadrons in the proposed upgrade of the LHCb spectrometer. The detector consists of a DIRC-style quartz plate placed perpendicular to the beam axis, with photon detectors arranged around the periphery of the plate (outside the acceptance of the spectrometer). Cherenkov light p ... Plus
Présenté par Mr. Mat CHARLES on 5 mai 2010 à 12:30
Type: Oral presentation Session: Photon detection for Cherenkov Counters - vacuum based devices
Thématique: Photon detection for Cherenkov counters
Microchannel plate photomultiplier tubes (MCP-PMTs) are compact, imaging detectors, capable of micron-level spatial imaging and timing measurements with resolutions below 10 picoseconds. Conventional fabrication methods are too expensive for MCP-PMTs in the quantities and sizes necessary for large, time-of-flight ring-imaging Cherenkov detectors (TOF-RICH) and other fast-timing large-area photo-de ... Plus
Présenté par Dr. Matthew WETSTEIN on 5 mai 2010 à 11:35
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Research & Development for future experiments
In context of the R & D for the CBM-RICH detector [1], a prototype detector has been developed in Pusan, Korea. This RICH prototype detector with a spherical concave CBM-Mirror [2] and Multi-anode PMTs (H8500 & H8500C-03, Hamamatsu) is tested at an electron beam (p_e ~60MeV/c) at the Test LINAC in the Pohang Accelerator Laboratory in Korea. This poster will present the preliminary detector perfo ... Plus
Présenté par Mr. JunGyu YI on 6 mai 2010 à 10:00
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
The Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) at Darmstadt will be a dedicated heavy-ion experiment exploring the intermediate range of the QCD phase diagram with A+A collisions from 10-45 AGeV beam energy. A key observable of the physics program is a precise measurement of low-mass vector mesons and charmonium in their leptonic decay channe ... Plus
Présenté par Dr. Claudia HOEHNE on 7 mai 2010 à 11:45
Type: Oral presentation Session: Photon detection for Cherenkov Counters - gaseous devices
Thématique: Photon detection for Cherenkov counters
In the last few years, considerable effort has been devoted to the development of gaseous photomultiplier tubes (PMTs) with micro-pattern gas detectors (MPGD) which are sensitive to visible light. The potential advantage of such a gaseous PMT is that it can achieve a very large effective area with moderate position and timing resolutions. Besides it can be easily operated under a very high magneti ... Plus
Présenté par Prof. Takayuki SUMIYOSHI on 4 mai 2010 à 16:10
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Cherenkov detectors in astroparticle physics
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 performance ... Plus
Présenté par Mr. Thomas KRÄHENBÜHL on 4 mai 2010 à 10:15
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
Latest steps in the development of the Focusing Aerogel RICH (FARICH) in Novosibirsk are presented. Our group has developed the technique of multilayer aerogel production. Several multilayer aerogel samples were produced. Optical parameters were measured. A project of the Forward RICH for the SuperB experiment (Italy) is presented. It features a dual aerogel-water radiator and Photonis MCP PMTs. ... Plus
Présenté par Dr. Evgeniy KRAVCHENKO on 7 mai 2010 à 11:20
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Pattern recognition and data analysis
The NA62 experiment at the CERN SPS aims at measuring an ultra-rare decay of the charged kaon (K+ in pi nu nubar);The signal is very small with respect to the background then the trigger is a crucial part for such an experiment. The very innovative approach presented here aims at exploiting the parallel computing power of commercial GPUs (Graphics processing unit) to perform fast computations in ... Plus
Présenté par Dr. Gianluca LAMANNA on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 area ... Plus
Présenté par Prof. Valentin IVANOV on 4 mai 2010 à 10:15
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
The needs and the proposed solutions for extremely fast timing detectors were one of the main highlights of the FP420 R&D report recently published in JINST 4 (2009) T10001. The FP420 project studies feasibility of installing proton detectors at 420m from the ATLAS and/or CMS interaction point(s) at the LHC, allowing for precise measurements in high luminosity environment of the spatial position a ... Plus
Présenté par Krzysztof PIOTRZKOWSKI on 6 mai 2010 à 18:40
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
We review the status of the Lake Baikal Neutrino Experiment. Preparation towards a km3-scale Gigaton Volume Detector (GVD) in Lake Baikal is currently a central activity. A prototype string for the future km3-scale Baikal neutrino telescope has been deployed and is fully integrated into the NT200+ telescope. We describe preliminary design and expected sensitivity of the GVD telescope, and discuss ... Plus
Présenté par Dr. Vladimir AYNUTDINOV on 3 mai 2010 à 16:30
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 like ... Plus
Présenté par Dr. Bayarto LUBSANDORZHIEV on 4 mai 2010 à 10:15
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
The LHCb experiment will search for new physics in CP violation and rare decays of b hadrons at the LHC. Particle identification is provided by two RICH detectors, RICH-1 and RICH-2, equipped with 484 Hybrid Photon Detectors to read the Cherenkov light. The RICH detectors are located in the fringe field of the LHCb dipole magnet, and fields as large as 2.5 mT have been measured in some regi ... Plus
Présenté par Dr. Andrew POWELL on 6 mai 2010 à 10:00
Type: Oral presentation Session: Pattern recognition and data analysis
Thématique: Pattern recognition and data analysis
The Selex experiment measured several billion charged hadron tracks with a high precision magnetic momentum spectrometer and high precision RICH velocity spectrometer. We have analyzed these data to simultaneously measure the masses of all the long lived charged hadrons and anti-hadrons from the pion to the Omega- using the same detectors and techniques. The statistical precision achievable wit ... Plus
Présenté par Peter COOPER on 6 mai 2010 à 11:45
Type: Oral presentation Session: Pattern recognition and data analysis
Thématique: Pattern recognition and data analysis
With the advancement of position sensitive low energy photon detectors with high quantum efficiency a ring imaging Cherenkov detector (RICH) becomes employed in increasing number of experiments. Trajectories of the particles with the momentum above Cherenkov photon emission threshold are in the RICH photon detector represented by rings. However, these rings are far from being ideal. Recognition of ... Plus
Présenté par Dr. Vladislav MATOUŠEK on 6 mai 2010 à 12:10
Type: Oral presentation Session: Technological aspects of Cherenkov detectors
Thématique: Technological aspects of Cherenkov detectors
The COMPASS RICH-1 detector has been using two reflecting segmented spherical mirrors, constructed from 68 hexagonal and 48 pentagonal individual mirrors. All mirrors have three degrees of freedom per segment, i.e., piston, tip, and tilt. The influence of external vibrations, pressure and temperature fluctuation can change alignment of individual mirrors with respect to optimal spherical surface. ... Plus
Présenté par Mr. Lukas STEIGER on 6 mai 2010 à 11:20
Type: Oral presentation Session: Photon detection for Cherenkov Counters - solid state and hybrid devices
Thématique: Photon detection for Cherenkov counters
We have studied the possibility to use silicon photomultipliers as a single photon detector in a proximity focusing RICH with aerogel radiator; such as counter is considered for the Belle-2 detector. Their main advantage over conventional photomultiplier tubes is their operation in high magnetic fields. Their disadvantage is the relatively high dark noise count rate ( ~MHz/mm2) which can be overc ... Plus
Présenté par Dr. Rok PESTOTNIK on 4 mai 2010 à 12:40
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Technological aspects of Cherenkov detectors
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 Telesc ... Plus
Présenté par Dr. Serguei VOROBIOV on 4 mai 2010 à 10:15
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
The BaBar DIRC is an innovative internally reflecting Ring Imaging Cherenkov Counter. It uses quartz bar radiator of Cherenkov light and the pinhole focusing onto an imaging device made up of individual conventional PMTs. Its success in the BaBar physics analysis motivated us to propose this concept again for the SuperB application. We plan to replace the BaBar stand-off box with a focusing o ... Plus
Présenté par Dr. Jerry VAVRA on 7 mai 2010 à 09:45
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 micr ... Plus
Présenté par Dr. Oswald SIEGMUND on 4 mai 2010 à 10:15
Type: Oral presentation Session: Photon detection for Cherenkov Counters - solid state and hybrid devices
Thématique: Photon detection for Cherenkov counters
Over the last two years the LHCb experiment has commissioned over 500 Hybrid Photon Detectors (HPD) in its RICH detectors. Here we will report about results of the extensive monitoring programme for these novel photon sensitive devices. Recently the first Cherenkov photons produced by LHC beam particles were reconstructed. Data have been taken under a variety of different run conditions ... Plus
Présenté par Mr. Ross YOUNG on 4 mai 2010 à 12:15
Présenté par Dr. Jerry VAVRA on 4 mai 2010 à 17:05
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Cherenkov detectors in astroparticle physics
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 telescope's o ... Plus
Présenté par Dr. Oleg KALEKIN on 4 mai 2010 à 10:15
Type: Oral presentation Session: Novel Cherenkov imaging techniques
Thématique: Novel Cherenkov imaging techniques
The PANDA detector at the HESR of the future FAIR facility at GSI will measure the annihilation products of antiprotons impinging on a fixed target. The combination of a compact target spectrometer with a wide angle forward spectrometer was chosen for hermetic coverage of the full solid angle. Charged particle identification over a large momentum range is performed in the target spectrometer by tw ... Plus
Présenté par Dr. Carsten SCHWARZ on 5 mai 2010 à 12:00
Type: Oral presentation Session: Pattern recognition and data analysis
Thématique: Pattern recognition and data analysis
Tracker detectors can be used to identify charged particles based on their global chi value obtained during track fitting with the Kalman filter. The proposed method is independent of the traditional way of identification using deposited energy. This approach builds upon the knowledge of detector material and local position resolution, using the known physics of multiple scattering and ene ... Plus
Présenté par Dr. Ferenc SIKLER on 6 mai 2010 à 17:30
Type: Oral presentation Session: Pattern recognition and data analysis
Thématique: Pattern recognition and data analysis
For the Belle II detector a time-of-propagation (TOP) counter is foreseen for particle identification in the barrel region. In this counter particle identity is determined from a complicated pattern in the time and position of Cherenkov photon detection. We will present an extended likelihood method for particle identification, which is based on an analytical construction of likelihood funct ... Plus
Présenté par Mr. Marko STARIC on 6 mai 2010 à 12:35
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Research & Development for future experiments
An important experimental direction of the study in physics of heavy ion collisions is the measurement of the yield of high-Pt particles. The main problem is to study the dominant mechanism of parton energy loss in compressed nuclear matter. “Jet quenching effect” by RHIC STAR and PHENIX Collaborations gives the indication that there is a different loss of energy by quarks and gluons in a nucl ... Plus
Présenté par Mr. Dmitry FINOGEEV on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 1 (Summary)
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 resolution. ... Plus
Présenté par Prof. Peter KRIZAN on 4 mai 2010 à 10:15
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Cherenkov detectors in astroparticle physics
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 temporal ... Plus
Présenté par Dr. oscar MARTINEZ on 4 mai 2010 à 10:15
Introduction to posters that will be visible today (Tuesday May 4) during coffee breaks
Présenté par Prof. Peter KRIZAN
Posters that may be viewed in the coffee break this morning (Wednesday May 5) and tomorrow morning (Thursday May 6)
Présenté par Prof. Peter KRIZAN
Type: Oral presentation Session: Photon detection for Cherenkov Counters - gaseous devices
Thématique: Photon detection for Cherenkov counters
The novel and robust Thick GEM (THGEM) electron multiplier, coupled to a solid state photon converter, represents a promising option for covering, at affordable costs, large areas with photon detectors, in particular, in Cherenkov imaging counters where single photons must be detected with high efficiency. Multistage structures, where the first THGEM layer is coated with a photosensitive CsI ... Plus
Présenté par Dr. Stefano LEVORATO on 5 mai 2010 à 09:25
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Novel Cherenkov imaging techniques
The WASA-at-COSY experiment allows the study of production and decay of eta and eta' mesons in proton proton reactions with an almost full 4 pi covering detector including a forward spectrometer section. At the moment the Forward Range Hodoscope (FRH) in the forward angle spectrometer region determines the identity of the particles by measuring the energy loss dE-E. Simulations concerning the esti ... Plus
Présenté par Mr. Adrian SCHMIDT on 6 mai 2010 à 10:00
Type: Oral presentation Session: Photon detection for Cherenkov Counters - gaseous devices
Thématique: Photon detection for Cherenkov counters
R&D on CsI-TGEM based photodetector V. Peskov for the ALICE collaboration The Very High Momentum PID (VHMPID) detector proposed for the ALICE upgrade is a focusing RICH using C4F10 gaseous radiator. For the detection of Cherenkov photons, one of the options currently under investigation is to use a CsI coated Triple-Thick-GEM (CsI-TTGEM). Extensive laboratory studies have been carried out to ... Plus
Présenté par Dr. Vladimir PESKOV on 5 mai 2010 à 09:00
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
MEMPHYS is a 0,5 Mton scale Water Cerenkov detector proposed for deep underground installation. Its performance with neutrino beams includes the possibility of measuring the mixing angle θ13, the CP violating phase δ and mass hierarchy. In addition, it would have an unprecedented reach for nucleon decay searches and for supernova neutrino detection. One R&D item currently being carried out ... Plus
Présenté par Prof. Thomas PATZAK on 7 mai 2010 à 10:10
Type: Oral presentation Session: Pattern recognition and data analysis
Thématique: Pattern recognition and data analysis
Particle identification in the LHCb experiment is provided by two RICH detectors, covering a momentum range between 1 and 100 GeV/c. In order to maintain the integrity of the LHCb physics performance, it is essential to measure and monitor the particle identification efficiency and misidentification fraction over time. To achieve this, the unique kinematics associated with K-short, Lambda and D* d ... Plus
Présenté par Dr. Andrew POWELL on 6 mai 2010 à 17:55
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Research & Development for future experiments
A key observable of the Compressed Baryonic Matter (CBM) physics program is a precise measurement of low-mass vector mesons and charmonium in their leptonic decay channel. In the CBM experiment at FAIR, electrons will be identified using a gaseous RICH detector combined with several TRD detectors positioned behind a system of silicon tracking stations. The concept of the RICH detector foresees an ... Plus
Présenté par Dr. Juergen ESCHKE on 6 mai 2010 à 10:00
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
The maximization of the photon detection efficiency (PDE) is a key issue in the development of cameras for Imaging Air Cherenkov Telescopes (IACT). Geiger-mode Avalanche Photodiodes (G-APD) are a promising candidate to replace the commonly used photomultiplier tubes by offering a larger PDE and a facilitated handling. The FACT project (First G-APD Cherenkov Telescope) evaluates the feasibility of ... Plus
Présenté par Mr. Thomas KRÄHENBÜHL on 4 mai 2010 à 11:00
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Research & Development for future experiments
A prototype to detect the highest energy fraction of electrons emitted by beta decays based on Cherenkov radiation in silica aerogel has been realized in order to be used in nuclear astrophysics target activation esperiments and environmental radioactive pollution survey. The prototype detects the high end-point of beta radiation: silica aerogel with refractive index of 1.056 corresponding to elec ... Plus
Présenté par Prof. Gianpiero GERVINO on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Pattern recognition and data analysis
The PANDA experiment at the future facility for anti-proton and ion research (FAIR) at GSI, Darmstadt, aims at studying the strong interaction by precision spectroscopy. A detector system with excellent particle identification (PID) properties over a large range of solid angle and momentum is therefore mandatory. For the charged hadron identification in the barrel region, a compact ring imaging Ch ... Plus
Présenté par Dr. Dipanwita DUTTA on 6 mai 2010 à 10:00
Présenté par Prof. Toru IIJIMA on 5 mai 2010 à 09:50
Présenté par Dr. Silvia DALLA TORRE on 4 mai 2010 à 14:55
Présenté par Dr. Samo KORPAR on 4 mai 2010 à 11:25
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
Silica aerogel blocks are produced for use in Cherenkov detectors by a collaboration of Boreskov Institute of Catalysis and Budker Institute of Nuclear Physics since 1986. Novosibirsk aerogel is used in several detectors. Among them are KEDR (BINP, Novosibirsk), LHCb (CERN, Geneva), AMS (for International Space Station mission) and others. Currently our investigations are aimed at two direction ... Plus
Présenté par Dr. Alexander DANILYUK on 6 mai 2010 à 10:00
Type: Oral presentation Session: Photon detection for Cherenkov Counters - solid state and hybrid devices
Thématique: Photon detection for Cherenkov counters
For the Belle-II experiment, we have been developing a proximity focusing RICH counter with silica aerogel radiator as a new particle identifier in the forward endcap to extend the $¥pi/K$ separation capability up to 4 $¥sigma$ at 4 GeV/c. Our requirements on a RICH photon detector are the following: (1) sensitivity to single photons, (2) immunity to magnetic field, (3) granularity of $¥s ... Plus
Présenté par Dr. Ichiro ADACHI on 4 mai 2010 à 14:30
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
Highly transparent silica aerogel has been developed for Cherenkov radiator in a RICH counter to be installed in the Belle-II end-cap apparatus. In conjunction with necessity to use multiple aerogel radiator layers for the RICH focusing scheme pioneered by our group, the optical improvement of silica aerogel with higher refractive index range around $n=$1.055$¥sim$1.070 has been intensively ... Plus
Présenté par Dr. Ichiro ADACHI on 6 mai 2010 à 10:00
Type: Oral presentation Session: Photon detection for Cherenkov Counters - vacuum based devices
Thématique: Photon detection for Cherenkov counters
The PANDA experiment at the FAIR facility at GSI in Darmstadt will use the DIRC technique to separate charged pions and kaons. Two devices are planned: a barrel DIRC and a forward disc DIRC detector covering together a polar angle range from 5 to 140 degrees. Since the PANDA detector was chosen to be very compact the image plane of both DIRCs is located inside the solenoid magnetic field of up to ... Plus
Présenté par Albert LEHMANN on 5 mai 2010 à 11:05
Type: Oral presentation Session: Photon detection for Cherenkov Counters - gaseous devices
Thématique: Photon detection for Cherenkov counters
In view of their potential application in RICH, we report on the operation properties of single- and cascade-THGEM UV-photon detectors with reflective CsI photocathodes, under simultaneous irradiation of UV and X- or -rays. Our studies were carried out in neon/CH4 and Ne/CF4 mixtures, in which conditions were previously found for high photon detection efficiencies – similar to that in prese ... Plus
Présenté par Amos BRESKIN on 4 mai 2010 à 15:40
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
We have been developing a Cherenkov ring-imaging counter, named TOP counter, as a particle identification device of Belle-II detector for super B-factory at KEK. In this presentation, we show the R&D status of TOP counter prototype development. We have performed the beam test using 2m long quartz radiator and MCP-PMTs, and evaluated the number of detected photons, time resolution and chromati ... Plus
Présenté par Dr. Kenji INAMI on 7 mai 2010 à 12:05
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
Imaging Cherenkov detectors play an important role in modern particle and nuclear physics experiments. DIRC-type Cherenkov counters offer the advantage of a very compact detector design by employing solid radiator materials. The optical quality of such materials is paramount and has to withstand the radiation environment of modern high luminosity experiments without significant degradation. ... Plus
Présenté par Dr. Matthias HOEK on 6 mai 2010 à 10:00
Présenté par Prof. Clara Matteuzzi MATTEUZZI on 5 mai 2010 à 15:00
Présenté par Dr. Eugenio NAPPI on 7 mai 2010 à 13:15
Type: Oral presentation Session: Technological aspects of Cherenkov detectors
Thématique: Technological aspects of Cherenkov detectors
The High Momentum Particle Identification Detector (HMPID) is a proximity focusing ring imaging Cherenkov (RICH) for charged hadrons identification at momenta 1< p < 3 GeV/c for pi and K and 1< p < 5 GeV/c for p. The HMPID uses liquid C6F14 as radiator medium. The detection of the Cherenkov UV photons is carried out via CsI coated photocathodes and MWPCs. To ensure a stable particle identi ... Plus
Présenté par Dr. Giacinto DE CATALDO on 6 mai 2010 à 09:30
Type: Oral presentation Session: Cherenkov Imaging in particle and in nuclear physics experiments
Thématique: Cherenkov imaging in particle and nuclear physics experiments
The ALICE High Momentum Particle Identification RICH detector (HMPID), with its 10 m2 of Cesium Iodide (CsI) photo-cathodes is installed, in the ALICE solenoid since fall 2006. Since then, it has been thoroughly commissioned, together with its auxiliary systems, with cosmic rays and beam dump/splash events during various LHC injections tests in 2008 and 2009. Finally, the HMPID has successfully ... Plus
Présenté par Dr. Paolo MARTINENGO on 3 mai 2010 à 11:00
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
The Alpha Magnetic Spectrometer (AMS), whose final version AMS 02 is to be installed on the International Space Station (ISS) later this year, is a detector designed to measure charged cosmic ray spectra with energies up to the TeV region and with high energy photon detection capability up to a few hundred GeV, using state-of-the art particle identification techniques. Among several detector su ... Plus
Présenté par Mr. Rui PEREIRA on 3 mai 2010 à 17:30
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
The ANTARES detector is the world’s first operating deep-sea neutrino telescope. It is located at a depth of 2475m in the Mediterranean Sea, close to Toulon, France. ANTARES comprises a three dimensional array of 885 photomultipliers, designed to detect the Cherenkov light produced by neutrino-induced muons passing close to the detector. Since June 2008, the construction of the detector is compl ... Plus
Présenté par Dr. Heide COSTANTINI on 3 mai 2010 à 15:30
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Research & Development for future experiments
Cooled antiproton beams of unprecedented intensities in the momentum range of 1.5-15 GeV/c will be used at the PANDA experiment at FAIR to perform QCD studies including searches for exotic states and high precision experiments in the charmed quark sector. Charged particle identification in the barrel region needs a thin detector operating in a strong magnetic field. Both requirements can ... Plus
Présenté par Dr. Jochen SCHWIENING on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Research & Development for future experiments
A large area RICH detector is being designed for the CLAS12 spectrometer as part of the the 12 GeV upgrade program of the Jefferson Lab Experimental Hall-B. This detector is intended to provide excellent hadron identification from 3 GeV/c up to momenta exceeding 8 GeV/c and to be able to work at the very high design luminosity - up to 10^35 cm^2s^-1. Detailed feasibility studies are presented for ... Plus
Présenté par Dr. Marco CONTALBRIGO on 6 mai 2010 à 10:00
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
The Cerenkov Telescope Array (CTA) is a project of building a High Energy (10 GeV to 100 TeV) gamma ray observatory. The CTA consortium is organized in workpackages dedicated to the electronics, the telescope structure, the focal plane instruments and other topics. In this talk, I will first give a brief overview of High Energy gamma ray astronomy. Next, I will describe the status of the work in t ... Plus
Présenté par Dr. Jean-Francois GLICENSTEIN on 4 mai 2010 à 09:25
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
The aim of this talk is to present the design, the implementation and the operational modes of the Liquid Circulation System (LCS) built to circulate, purify and monitor the liquid perfluorohexane (C6F14) in the ALICE HMPID. The HMPID RICH uses C6F14 as Cherenkov radiator medium circulating in twenty-one quartz trays. The LCS features a pressure-regulated closed circuit, ensuring the C6F14 highe ... Plus
Présenté par Dr. PASTORE COSIMO on 6 mai 2010 à 10:00
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
KM3NeT denotes a research infrastructure in the Mediterranean deep sea, hosting a neutrino telescope with an instrumented volume of several cubic kilometres and interfaces for devices serving earth and sea science research. The technical design of the neutrino telescope will be presented, with particular focus on light detection and data acquisition. Its major physics objectives will be discussed ... Plus
Présenté par Prof. Ulrich KATZ on 4 mai 2010 à 09:50
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
In the LHCb detector at the Large Hadron Collider, powerful charged particle identification is performed by Ring Imaging Cherenkov (RICH) technology. In order to cover the full geometric acceptance and the wide momentum range (1-100 GeV/c), two detectors with three Cherenkov radiators have been designed and installed. In the medium (10-40 GeV/c) and high (30-100 GeV/c) momentum range, gas r ... Plus
Présenté par Mr. Davide L. PEREGO on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 2 (Summary)
The LHCb experiment plans to operate at an LHC luminosity of 2x10**32 /s cm2, or typically one collision per bunch crossing. After about five years it will have recorded a data sample of 10 fb-1. At this time LHCb plans an upgrade to operate the detectors at a significantly increased luminosity that will extend greatly its potential for discovery and study of new phenomena. The key to ge ... Plus
Présenté par Mr. Kim YOUNG MIN on 6 mai 2010 à 10:00
Type: Oral presentation Session: Cherenkov detectors in astroparticle physics
Thématique: Cherenkov detectors in astroparticle physics
MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes (IACTs). During the construction novel technologies have been developed, which nowadays represent the state of the art techniques on the market. The 17m diameter reflector is composed of light weight sandwich structured aluminium and glass mirrors, mounted on a carbon fiber tube dish structure. The overall focusing is kept at optimu ... Plus
Présenté par Dr. Markus GARCZARCZYK on 3 mai 2010 à 17:00
Type: Oral presentation Session: Cherenkov Imaging in particle and in nuclear physics experiments
Thématique: Cherenkov imaging in particle and nuclear physics experiments
The CERN NA62 experiment aims at a 10% measurement of the BR of the K+ into a pi+ and two neutrinos. The main background is the K+ decay into a muon and a neutrino, so pion-muon separation is a crucial ingredient. The RICH detector must separate pions from muons at 3 sigma level between 15 and 35 GeV/c momentum. The RICH must also measure the pion crossing time with a 100 ps resolution to avoid fa ... Plus
Présenté par Dr. Massimo LENTI on 3 mai 2010 à 14:30
Type: Oral presentation Session: Cherenkov Imaging in particle and in nuclear physics experiments
Thématique: Cherenkov imaging in particle and nuclear physics experiments
Particle identification is one of the fundamental requirement of the LHCb experiment. Hadron identification is performed by two Ring Imaging Cherenkov (RICH) detectors, comprising three radiators and 484 Hybrid Photon Detectors (HPDs) providing 500,000 channels of data. The particle identification system covers the full angular acceptance of the LHCb spectrometer and is designed to give positive ... Plus
Présenté par Prof. Franz MUHEIM on 3 mai 2010 à 11:30
Type: Oral presentation Session: Research and Development for future detectors
Thématique: Research & Development for future experiments
The VHMPID RICH upgrade project for ALICE at LHC A. Di Mauro for the ALICE Collaboration RHIC results have shown the importance of high momentum particles as hard probes and the need for particle identification in a very large momentum range, in particular for protons. The ALICE detector has a unique capability to identify a wide variety of particles; however its momentum coverage for track-by ... Plus
Présenté par Dr. Antonello DI MAURO on 7 mai 2010 à 09:20
Type: Oral presentation Session: Cherenkov Imaging in particle and in nuclear physics experiments
Thématique: Cherenkov imaging in particle and nuclear physics experiments
COMPASS RICH-1 is a large gaseous Imaging Cherenkov Detector providing high quality hadron identification in the range from 3 to 60 GeV/c, in the wide acceptance spectrometer of the COMPASS Experiment at CERN SPS. It has been successfully operated since 2002 and its performances have increased in time thanks to progressive optimization and mostly to a major upgrade which was implemented in 2006. ... Plus
Présenté par Dr. Fulvio TESSAROTTO on 3 mai 2010 à 12:00
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Pattern recognition and data analysis
The radiator gas C4F10 at Compass RICH has two important characteristics of refractive index – absolute value at specific wavelength and material dispersion of this index. The influence of both characteristics, possibility of their measurement and compensation of it are presented. The refractive index of radiator gas varies with temperature, atmospheric pressure and gas purity. It is important ... Plus
Présenté par Dr. Miroslav SULC on 6 mai 2010 à 10:00
Type: Oral presentation Session: Novel Cherenkov imaging techniques
Thématique: Novel Cherenkov imaging techniques
The Belle II detector operating at the future upgrade to the KEKB accelerator will perform high-statistics precision investigations into the flavor sector of the Standard Model. As charged hadron identification is a vital element of the experiment's success, the time-of-propagation (TOP) counter has been chosen as the primary particle identification device in the barrel region of Belle II. Th ... Plus
Présenté par Mr. Kurtis NISHIMURA on 5 mai 2010 à 14:30
Type: Oral presentation Session: Technological aspects of Cherenkov detectors
Thématique: Technological aspects of Cherenkov detectors
The excellent dielectric properties of saturated (CnF(2n+2)) fluorocarbons have allowed their use in direct immersion liquid cooling of electronics, for example in the Cray series supercomputers. They have also found extensive use as heat transfer media in vapour phase soldering. Their high density and optical transparency led to the suggestion by Seguinot and Ypsilantis for their use as liquid ... Plus
Présenté par Dr. Gregory HALLEWELL on 6 mai 2010 à 09:00
Type: Poster Session: Poster Session 1 (Summary)
Thématique: Photon detection for Cherenkov counters
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 develop ... Plus
Présenté par Joao VELOSO on 4 mai 2010 à 10:15
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Pattern recognition and data analysis
We report on the structure and performance of the HOU Reconstruction & Simulation (HOURS) software package developed in order to study in detail the response of very large volume ($km^3$-scale) Cherenkov neutrino detectors. HOURS comprises a realistic simulation package of the detector response, including an accurate description of all the relevant physical processes, as well as several a ... Plus
Présenté par Dr. Apostolos TSIRIGOTIS, Dr. Antonios LEISOS on 6 mai 2010 à 10:00
Type: Poster Session: Poster Session 2 (Summary)
Thématique: Technological aspects of Cherenkov detectors
The Very High Momentum Charged Particle Identification (VHMPID) detector represents a possible upgrade for the ALICE experimental apparatus. It has been conceived to extend protons identification on a track-by-track basis up to p = 30 GeV/c. The VHMPID is a ring imaging Cherenkov with C4F10 gaseous radiator coupled to CsI-based photon detector. The focusing properties of a spherical mirror are exp ... Plus
Présenté par Dr. Giacomo VOLPE on 6 mai 2010 à 10:00
Session: Welcome messages
Présenté par N. N. on 3 mai 2010 à 09:10
Session: Welcome messages
Présenté par Eric KAJFASZ on 3 mai 2010 à 09:00
Présenté par Dr. Blair RATCLIFF on 7 mai 2010 à 12:30