^ γ-rays

^γ – rays

(a) Produced in nuclear reactions and are also emitted by radioactive nuclei (such as Co ⁶⁰ & Cs ¹³⁷).

(b) Properties: Effect on photographic plate, fluorescence, ionization, diffraction, high penetrating power & can cause serious damage if absorbed by living tissues.

(c) Used

1. in radio therapy to treat certain cancers and tumors
2. to produce nuclear reactions
3. to study the atomic nuclei.