Author/Authors :
De Leo، نويسنده , , R. and Lagamba، نويسنده , , L. and Manzari، نويسنده , , V. and Nappi، نويسنده , , E. and Scognetti، نويسنده , , T. and Alemi، نويسنده , , M. and Becker، نويسنده , , H. and Forty، نويسنده , , David R. and Adachi، نويسنده , , I. and Suda، نويسنده , , R. and Sumiyoshi، نويسنده , , T. and Leone، نويسنده , , A. and Perrino، نويسنده , , R. and Matteuzzi، نويسنده , , C. and Seguinot، نويسنده , , J. and Ypsilantis، نويسنده , , T. and Cis، نويسنده ,
Abstract :
The recent development of highly transparent aerogel has permitted its use as a Cherenkov radiator in a focused (non-Rayleigh-scattered) mode. We report on the optical properties of this aerogel obtained by observation of Cherenkov rings with single-electron-sensitive phototubes. The dependence on aerogel radiator thickness of the number of Cherenkov ring hit points and background is shown and compared to expectations. A 5 cm thick radiator of this aerogel will permit πK identification up to 20 GeV/c.
