Author/Authors :
Colas، نويسنده , , P and Delbart، نويسنده , , A and Derré، نويسنده , , J and Giomataris، نويسنده , , I and Jeanneau، نويسنده , , F and Lepeltier، نويسنده , , V and Papadopoulos، نويسنده , , I and Rebourgeard، نويسنده , , Ph، نويسنده ,
Abstract :
A method to measure the electron drift velocity is presented. A pulsed UV nitrogen laser is used to excite both the drift and cathode nickel micromeshes of a Micromegas detector. The signals induced on the anode are then readout by a fast current amplifier. Several results have been obtained for various gas mixtures and electric fields from 10 V/cm to 14 kV/cm. Relevant applications with low (TPCs mode) and high (pre-amplification mode) electric fields will be discussed.
