[Solid_ec] EC fiber area needs to go out of SoLID

[Zhiwen Zhao]

Hi, Paul and Whit

I did some estimation on EC fiber area needs to go out of SoLID
https://hallaweb.jlab.org/wiki/index.php/Solid_calorimeter_fiber_and_connector#fiber_area_to_go_out

Please let me know any comment.

Thanks

Zhiwen