Title :
Progress in simulations of micropattern gas avalanche detectors
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
Helpful for a better understanding of the intrinsic processes in the various gas avalanche detectors are simulations, involving three-dimensional finite element method (FEM) field map computations in order to describe the more and more complex geometries. Drift, multiplication and attachment procedures are simulated using Monte Carlo techniques. Recent results show a remarkable agreement with gain and energy resolution measurements thanks to the refined computations of gas transport properties and improved avalanching models. As examples the influence of wire eccentricity on gas gain and energy resolution in the ATLAS TRT straws is shown as well as performed studies of the Micromegas detector
Keywords :
Monte Carlo methods; drift chambers; transition radiation detectors; Micromegas detector; Monte Carlo techniques; attachment procedures; drift; gas transport properties; micropattern gas avalanche detectors; multiplication; three-dimensional finite element method field map computations; wire eccentricity; Computational geometry; Computational modeling; Detectors; Energy measurement; Energy resolution; Finite element methods; Gain measurement; Monte Carlo methods; Solid modeling; Wire;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949077
