[Solid_ec] signal_estimation_for_preshower

[Zhiwen Zhao]

Hi, All

We try to estimate from signal estimation for preshower to get a better 
feeling if we can use MAPMT for readout
So far, we haven't seen any showstopper yet.
Please check it out and give comments

link here
https://hallaweb.jlab.org/wiki/index.php/Solid_calorimeter_readout#signal_estimation_for_preshower

Thanks for great help from Yi,Jin and Simona

Zhiwen