Objectives
Demonstrating the energy loss of gamma quanta by Compton scattering.
Verification of the theoretical expression for the energy of the scattered gamma quanta.

Principle
The equipment makes it possible to study Compton scattering by two angles: 60° and 90°. For each angle a couple of
aluminium shells are used, whose geometry ensures that only gamma quanta that are scattered in precisely the
desired angle, hits the detector.
Most of the direct radiation is absorbed by a lead absorber, placed directly between source and detector.
The energy of the gamma quanta is measured by a small scintillation detector and a multichannel analyser.