The SpaCal ToF (SToF)

at least 12 cells of em Spacal will be removed,it means 12 PMs free.
3x3 cells of had Spacal will be removed.Total area of inner part is 36x36 cm2 minus (314 cm2 magnet + equipment for the support and alignment of the magnet).

Additional discussion with K.Gadow and some drawings needed.