4. Interaction of γ-rays in matter

Electromagnetic radiation γ has no electric charge. They interact in matter according to three main processes: the photoelectric effect, the Compton effect and the creation of e ⁺ e pairs ^- . The relative importance of these three effects depends on the energy of the radiation γ and the atomic number Z of the attenuating medium (figure 8 ).

4.1 Attenuation of γ radiation in matter

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References

(1) - FERNOW (R.C.) - Introduction to experimental particle physics. - Cambridge University Press (1986) (exemple d'ouvrage parmi d'autres).
(2) - Nouvelles du Ganil - n° 44 (1993).
(3)...