Performance of silica aerogel threshold Cerenkov counters
نویسندگان
چکیده
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...
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The Cerenkov counters in TASS0 consist of 3 elements, one filled with aerogel and two with Freon 114 and CO2. The 1700 liters of aerogel cover an area of 11.8m2 with a thickness of 13.5 to 18 cm. Most cells are filled with an index of refraction between 1.023 and 1.026. In a running period of 2 months after installation = 3.9 + 0.2 photoelectrons were observed. The mean valu: over 17 months...
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Silica aerogel microspheres based on alkali silica sol were synthesized using the emulsion method. The experimental results revealed that the silica aerogel microspheres (4-20 µm in diameter) were mesoporous solids with an average pore diameter ranging from 6 to 35 nm. The tapping densities and specific surface areas of the aerogel microspheres are in the range of 0.112-0.287 g/cm³ and 207.5-66...
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متن کاملOptical shock waves in silica aerogel.
Silica aerogels are materials well suited for high power nonlinear optical applications. In such regime, the non-trivial thermal properties may give rise to the generation of optical shock waves, which are also affected by the structural disorder due to the porous solid-state gel. Here we report on an experimental investigation in terms of beam waist and input power, and identify various regime...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1995
ISSN: 0920-5632
DOI: 10.1016/0920-5632(95)00508-0