Introduction

             The CMS electromagnetic calorimeter (ECAL) consists of one crystal barrel (EB). two crystal endcaps (EE) and two preshower endcaps (SE).

           The EE consists of two crystal Endcaps installed in the 4 T magnetic field of the CMS experiment.

           Each endcaps is divided into two halves, or "Dees". Each Dee comprises 3622 crystals. There are contained in 138 standard Supercrystals (SC) and 14         special "deconstructed" SC's on  the inner and outer circumference.

            The mechanic part of standard SC consists of  a 5x5 array of 25 channels with Lead Tungstate crystals; one inch diameter Vacuum Phototriode (VPT); a 5x5 alveolar unit for crystal/VPT support; back and front inserts and an interfase plate; a housing unit.

                                                                          Regional Centers 

           The assembly of all EE pieces coming from all over the world will be done in 2 so-called Regional Centers: 1 in Dee lab at CERN and 1 in United Kingdom. The task of these laboratories is to receive and store all the parts, perform quality control check of each entity and finally assemble the various parts in order to build the EE calorimeter. 

                                                               Crystal Palace for EE assembly, CERN, bat 168-R-F05,  x73692

                                                      Peoples and Galerie:                                                          

• Lucie Linssen, CERN

• Claude-Charles Detraz, CERN                           * Team from IHEP-Protvino          (Vasily Kachanov, Technical Coordinator)

• Jose Mulon, CERN                                           * VPT's team from INR-Troitsk     (Sergey Gninenko, Vladimir Postoev)

• Xavier Pons, CERN                                          * Alveolar's team                           (Nikolay Golubev)

• Wolfgang Funk, CERN                                      * Team from United Kingdom        ( Dave Cockerill, Bryan Smith)    

                  Activities:

• Dee lab construction

• Alveolar's measurements *new

• Acceleration measurements

• VPT's measurements

• Database

• SC03&4 assembly

• Test Beam 2004 in H4

• Meetings

• Plans

• Help files

• Results on Apatity and Bogoroditsk crystals under Gamma Irradiation (May-June,2004)*new

• Results on Apatity and crystals under Gamma Irradiation (September,2004)*preliminary

                                                                                                                                                Personal page for Viatcheslav Grishin

                                                                                                                                                     Questions/suggestions,plz, e-mail: Viatcheslav Grishin

                                                                                                                                                                                                             June  8, 2005