EM Accordion Calorimeter

We present in this note a method to construct a correction function of the EM accordion calorimeter energy to take into account the lead plates inhomegeneous thickness distribution. After having derived the method, the results of the analysis of the real Module 0 plates distribution are presented and discussed. We show that the knowledge of the lead plate thickness can be used to correct the reconstructed energy such as the residual constant term due to lead thickness fluctuation can be reduced. We show that the connection between two modules with two different mean thickness can be also very well corrected resulting in a very small constant term contribution.