نتایج جستجو برای: cherenkov array
تعداد نتایج: 135478 فیلتر نتایج به سال:
the dependence of the lateral distribution of cherenkov light in simulated extensive air showers to the energy and the mass of the primary cosmic rays has been studied. it has been shown that a previous claim about mass independent proportionality of shower energy to the total cherenkov photon number is not valid in energies below eeas ~ 1014 ev. we have found that the core distance of the so c...
The recently identified source class of pulsar haloes may be numerous and bright enough in the TeV range to constitute a large fraction sources that will observed with Cherenkov Telescope Array (CTA). In this work, we quantify prospects for detecting characterizing observations projected Galactic Plane Survey (GPS), using simple phenomenological diffusion model individual their population Milky...
Active galactic nuclei (AGNs) make up about 35 per cent of the more than 250 sources detected in very-high-energy (VHE) gamma rays to date with Imaging Atmospheric Cherenkov Telescopes. Apart from four nearby radio galaxies and two AGNs unknown type, all known VHE are blazars. Knowledge cosmological redshift gamma-ray blazars is key enabling study their intrinsic emission properties, as interac...
Preliminary results from CANGAROO-II, a 10 m imaging Cherenkov telescope, in Woomera, South Australia are presented. They include the confirmation of detections of TeV gamma-ray sources we have reported using a 3.8 m telescope, CANGAROO-I. Also the status of the construction of an array of four 10 m telescopes, called CANGAROO-III, is reported. The first telescope of the array was upgraded from...
We report on the status of the construction of an array of four 10 m atmospheric Cherenkov telescopes for gamma-ray astronomy, near Woomera, in South Australia – the CANGAROO-III project. The first telescope of this array is the upgraded version of the CANGAROO-II 7 m telescope and has been in operation since March 2000. The second telescope, an improved version of the first, is being construct...
Recent results from CANGAROO-II, the first 10m atmospheric Cherenkov telescope, and status of CANGAROO-III, the array of four 10m telescopes, are presented. The former one has been operating since 2000 and the latter one was completed in March 2004.
By using a phased electromagnetic dipole array to model a moving charged particle, we experimentally verified a reversed Cherenkov radiation in the left-handed media in the frequency range from 8.1 to 9.5 GHz. Our results demonstrate the feasibility of new types of particle detectors and radiation generators.
We report on test results of a novel ring imaging Cherenkov (RICH) detection system consisting of a 3 meter long gaseous C4F8O radiator, a focusing mirror, and a photon detector array based on Hamamatsu multi-anode photomultiplier tubes. This system was developed to identify charged particles in the momentum range from 3-70 GeV/c for the BTeV experiment. PACS numbers: 03.30+p, 07.85YK
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