Resolution of a Prototype Lead Tungstate Crystal Matrix with Vacuum Phototriode Readout for the CMS Endcap Electromagnetic Calorimeter

Data obtained in June 1998 from a 3x3 array of PbWO4 in the H4 testbeam indicate that an energy resolution better than 0.5% at 100GeV can be obtained from a matrix of PbWO4 endcap crystals with vacuum phototriode readout. These data are the first obtained for ECAL endcap shaped crystals and used cry...

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Detalles Bibliográficos
Autores principales: Davies, Gavin, Hays, Jonathan, Heath, Helen F, Presland, Andrew David
Lenguaje:eng
Publicado: 2000
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/687227
Descripción
Sumario:Data obtained in June 1998 from a 3x3 array of PbWO4 in the H4 testbeam indicate that an energy resolution better than 0.5% at 100GeV can be obtained from a matrix of PbWO4 endcap crystals with vacuum phototriode readout. These data are the first obtained for ECAL endcap shaped crystals and used crystals 220mm long with 24.7x24.7mm^2 front face. Tests with a full sized super-crystal, a 5x5 array of fullsized crystals ( 28.6x28.6mm^2 front face), will be performed in summer 1999.

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