The GEMs for the Module
This page is dedicated to the design of the GEMs for the LPTPC Desy module
- Sensitive area as big as possible
- Each independent copper area must have 4 electrode contacts to ensure the compatibility with the modular support grid.
- Rui de Oliveira suggested to divide the sensitive area in four parts to reduce the damage a discharge may have on the GEM
- The contacts should be on the upper and lower side of the GEM so that we do not lose tracks.
First design iteration:
The electrodes contacts are still on the side of the GEM