The spread (width of distribution) of maximum detectable energy of the APD submodules measured so far is maximum 9% per submodule which is within expectations as not only APD matching but also mirror foil and glueing contribute
Radiation Hardness Issues:
There is something unclear with the radiation estimations derived from simulations carried out by Marc years ago, need to talk to him
Further Issues:
There has been discussed something more I could not follow because I had to leave the building because of a fire alarm...