Author/Authors :
van Apeldoorn، نويسنده , , G and Bourdarios، نويسنده , , C and Buys، نويسنده , , A and Dracos، نويسنده , , M and Juillot، نويسنده , , P and Kjaer، نويسنده , , N and Toet، نويسنده , , D.Z، نويسنده ,
Abstract :
We describe a method to monitor ageing effects in the multiwire proportional chambers (MWPCs) of the barrel ring imaging Cherenkov (BRICH) detector of DELPHI. It is based on a measurement of plateau-curve characteristics and the shift of these as a function of the total collected charge. Results indicate that, as yet, no ageing effects are present.
