for demonstrating Rutherford scattering by means of a gravitational analogue of inverse square law repulsion.
The apparatus comprises a spun aluminium hill, 280mm diameter x 60mm high, a 12.5mm and 19 mm X 2 steel ball and a wooden launching ramp. The shape has been determined by varying its height above the base line by an amount based upon the reciprocal of the radius.
Launching ramp, 300 x 48 x 105mm high with a guide groove down its curved front face and index marks at 40, 60, 80 and 100mm above the base to give a variety of known launching heights.

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Ltekonline are the manufacturers of Alpha Scattering Demonstration Model Atomic and Nuclear Physics Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Physics Lab Experiments for Engineering Teaching Lab in Universities