منابع مشابه
The Firs Cerenkov Counters*
The separation of charged kaons from the more copiously produced pions adds significantly to the analyzing power of e+edetectors. Time-of-flight techniques provide this separation up to about 1 GeV/c. However, at PEP and PETRA energies a large proportion of particles have momenta above this range. A useful device to tag kaons above 1 GeVjc would be a threshold Cerenkov counter. Due to the tight...
متن کاملCalibration sources of Cerenkov radiation
We report on attempts to construct and simulate low intensity sources of Cerenkov radiation with accurately known spectral intensity. These sources will be used to calibrate photomulti-pliers for the Sudbury Neutrino Observatory. We have used ^Sr as a radioactive beta source located at the center of a sphere of ultraviolet transparent acrylic. The production of Cerenkov radiation by stopping el...
متن کاملCerenkov radiation in photonic crystals.
In a conventional material, the coherent Cerenkov radiation due to a moving charged particle is associated with a velocity threshold, a forward-pointing radiation cone, and a forward direction of emission. We describe different behavior for the Cerenkov radiation in a photonic crystal. In particular, this radiation is intrinsically coupled with transition radiation and is observable without any...
متن کاملEndoscopic imaging of Cerenkov luminescence
We demonstrate feasibility of endoscopic imaging of Cerenkov light originated when charged nuclear particles, emitted from radionuclides, travel through a biological tissue of living subjects at superluminal velocity. The endoscopy imaging system consists of conventional optical fiber bundle/ clinical endoscopes, an optical imaging lens system, and a sensitive low-noise charge coupled device (C...
متن کاملThe track imaging Cerenkov experiment
The Track Imaging Cerenkov Experiment (TrICE) aims for a ground-based measurement of high energy cosmic-ray composition using a novel technique. By separating the Cerenkov emission from the primary and secondary particles, nearly elemental charge resolution can be established. Here the status of the TrICE experiment is discussed.
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ژورنال
عنوان ژورنال: Journal de Physique et le Radium
سال: 1950
ISSN: 0368-3842
DOI: 10.1051/jphysrad:0195000110501700