نتایج جستجو برای: water cherenkov detectorwcd
تعداد نتایج: 552876 فیلتر نتایج به سال:
The Dirc, a new type of Cherenkov imaging device, has been selected as the primary particle identi cation system for the BaBar detector at the asymmetric B-factory, Pep-II. It is based on total internal re ection and uses long, rectangular bars made from synthetic fused silica as Cherenkov radiators and light guides. In this paper, the principles of the Dirc ring imaging Cherenkov technique are...
The current focus of the CERN program is the Large Hadron Collider (LHC), however, CERN is engaged in long baseline neutrino physics with the CNGS project and supports T2K as recognized CERN RE13, and for good reasons: a number of observed phenomena in high-energy physics and cosmology lack their resolution within the Standard Model of particle physics; these puzzles include the origin of neutr...
The new type of ring-imaging Cherenkov detector technology called Dirc (an acronym for Detection of Internally Reflected Cherenkov (Light)) has been used successfully for hadronic particle identification in the BABAR experiment at the B Factory (PEP-II) located at the SLAC National Accelerator Laboratory. This paper describes the R&D for and the construction of the Dirc radiator bars and the pe...
In order to measure the longitudinal phase-space profile of the electron beam, we are developing a compact measurement system consisting of a Cherenkov radiator, a bending magnet and a streak camera. The Cherenkov radiator with an aerogel is installed in the beam transport line, and the electron distribution in the longitudinal phase-space is obtained. Furthermore, a slice emittance measurement...
VERITAS is an atmospheric Cherenkov telescope array designed to study astrophysical sources of very-high-energy gamma radiation. Located in southern Arizona, USA, the array consists of four 12 m-diameter imaging Cherenkov telescopes. All four telescopes have been deployed at the basecamp of the Whipple Observatory and began full operation in early 2007. This paper describes the operational stat...
Aiming to observe cosmic gamma rays in the 10−1000 TeV energy region, we propose a 10000 m underground water-Cherenkov muon-detector (MD) array that operates in conjunction with the Tibet air-shower (AS) array. Significant improvement is expected in the sensitivity of the Tibet AS array towards celestial gammaray signals above 10 TeV by utilizing the fact that gamma-ray-induced air showers cont...
The method of the statistical sample moments was used for the analysis of neutrino events from SN1987A burst in Cherenkov detectors. In particular the coefficients of correlation Q(E, t) between the energies E of electron antineutrinos ν̄e emitted by star and the ejection instants t of ν̄e for neutrino events recorded by Cherenkov water detectors of KII and IMB collaborations were calculated. Q(E...
Milagrito was a preliminary phase of the Milagro experiment and operated from February 1997 to May 1998. Milagrito was a water-Cherenkov detector for air showers produced by gamma rays (and background cosmic rays). The data have been studied for emission from several nearby blazars. Emission from Markarian 501 is detected coincident with the large are observed in 1997 by several atmospheric Che...
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