Description and Performances of the Electrical Test Benches for Readout Electrodes of the ATLAS EM Calorimeter

This note describes the different benches proposed by the LPNHE-Paris group to test the electrical properties of ATLAS Liquid Argon calorimeter electrodes. Two types of tests have been performed on electrode pre-prototypes since October 1997 to evaluate the benches performances. The first tests are done on flat electrodes, and the latter ones on the same electrodes after bending. At the production step, flat electrodes tests will be done in the factories and bent electrodes tests in the laboratories. Examples of results on benches performances (capacitances, resistances and leakage current measurements) are presented in this note.