Author/Authors :
Ducret، نويسنده , , Jean-Eric and Legou، نويسنده , , Philippe and ?ukasik، نويسنده , , Jerzy and Boudard، نويسنده , , Alain and Combet، نويسنده , , Michel and Czech، نويسنده , , Bronis?aw and Durand، نويسنده , , Robert and Gorbinet، نويسنده , , Thomas and Le Bourlout، نويسنده , , Pascal and Leray، نويسنده , , Sylvie and Matousek، نويسنده , , Vladislav and Nizery، نويسنده , , François and Paw?owsk، نويسنده ,
Abstract :
We have performed tests of Micromegas detector prototypes using the heavy-ion beams from the SIS synchrotron of GSI (Darmstadt, Germany). The beams varied from C 6 + 12 to Au 65 + 179 and from 250 to 1000 MeV per nucleon. We have tested two amplification technologies, conventional and resistive Micromegas, and two construction concepts, bulk-Micromegas and micro-meshes screwed on the PCB. The obtained position resolution below 200 μ m for 5 mm wide strips implies that the bulk resistive Micromegas technology might meet the requirements of the future R3B TPC project. We also developed a fast and very low noise front-end electronics connected directly to the Printed Circuit Board (PCB) of the detector itself. This concept has shown very good performances and robustness.
Keywords :
Resistive readout , Gaseous detectors , Micromegas , TPC , Low-noise preamplifier
