Slot On Cylindrical Face

Hi

how can i make a slot on a cylindrica solid face

I want a slot which is not a through all slot

but a blind slot with a radius at the end of it if you understand me.

what i want is attatched in the image below.

Obviously this is a 2d drawing of a rotor shaft, the slot itself is on a cylindrical face, this is how i want to model the slot.

SolidworksParts And Features