Systematic studies on the GEM foil material are performed to measure the moisture diffusion rate and saturation level.These studies are important because the presence of this compound inside the detector’s foil can possibly change its mechanical and electrical properties,and in such a way,the detector performance can be affected.To understand this phenomenon,a model is developed with COMSOL Multiphysicsv.4.3 which described the adsorption and diffusion within the geometry of GEM foil,the concentration profiles and the time required to saturate the foil.The COMSOL model is verified by experimental observations on a GEM foil sample.This note will describe the model and its experimental verification results.
Characterization of the water diffusion in GEM foil material / Benussi, L.; Bianco, S.; Saviano, G.; Muhammad, S.; Piccolo, D.; Raffone, G.; Caponero, M.; Passamonti, L.; Pierluigi, D.; Russo, A.; Primavera, F.; Cerbelli, S.; Lalli, A.; Valente, M.; Ferrini, M.; Teissandier, B.; Taborelli, M.; Parvis, M.; Grassini, S.; Tirillo, J.; Sarasini, F.; Franchi, A. V.. - In: EPJ WEB OF CONFERENCES. - ISSN 2101-6275. - ELETTRONICO. - 174:(2018). (Intervento presentato al convegno 4th International conference on MicroPattern Gaseous Detectors, MPGD 2015 tenutosi a Trieste; Italy nel 12 October 2015 through 15 October 2015) [10.1051/epjconf/201817403005].
Characterization of the water diffusion in GEM foil material
Saviano, G.;Muhammad, S.;Cerbelli, S.;Valente, M.;Ferrini, M.;Tirillo, J.;Sarasini, F.;
2018
Abstract
Systematic studies on the GEM foil material are performed to measure the moisture diffusion rate and saturation level.These studies are important because the presence of this compound inside the detector’s foil can possibly change its mechanical and electrical properties,and in such a way,the detector performance can be affected.To understand this phenomenon,a model is developed with COMSOL Multiphysicsv.4.3 which described the adsorption and diffusion within the geometry of GEM foil,the concentration profiles and the time required to saturate the foil.The COMSOL model is verified by experimental observations on a GEM foil sample.This note will describe the model and its experimental verification results.| File | Dimensione | Formato | |
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