A narrow beam of alpha particles with kinetic energy 1.0 MeV

A narrow beam of alpha particles with kinetic energy 1.0 MeV

A narrow beam of alpha particles with kinetic energy 1.0 MeV falls normally on a platinum foil 1.0¾m thick. The scattered particles are observed at an angle of (10° to the incident beam direction by means of a counter with a circular inlet area 1.0 cm2 located at the distance 10 cm from the scattering section of the foil. What fraction of scattered alpha particles reaches the counter inlet?

 

Is this the question you were looking for? If so, place your order here to get started!