Author/Authors :
Andrieux، نويسنده , , M.L. and Cavalli، نويسنده , , P. and Fontenille، نويسنده , , A. and Sajot، نويسنده , , G. and Stassi، نويسنده , , P.، نويسنده ,
Abstract :
An ultrasonic velocity measurement is used to monitor the percentage of C4F10 on-line in the Forward RICH of DELPHI with a precision of better than 1%. The value is displayed in real time by a micro-computer. The sound velocity in pure C4F10 at 25.00 ± 0.25°C has been measured to be 101.1 ± 0.1 ms−1.
