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→Applications
: [[Gamma-ray]]s can be used to sterilise food and medical equipment because it causes [[electron]]s in [[material]]s to gain enough [[energy]] to leave [[atom]]s creating [[ion]]s which can destroy [[Chemical Bond|chemical bonds]] in [[micro-organism]]s thereby destroying the [[micro-organism]].
: [[Gamma-ray]]s can be used to [[irradiate]] [[cancer]]ous tumors because they [[ionise]] [[atom]]s, destroying [[Chemical Bond|chemical bond]]s and can kill the [[Cell (Biology)|cells]]. [[Cancer]] [[Cell (Biology)|cells]] are weaker than healthy [[Cell (Biology)|cells]] so more of the [[cancer]] [[Cell (Biology)|cells]] will be killed than healthy ones.
: [[Gamma-ray]]s cab be used to trace the flow of [[fluid]]s through [[organ]]s because [[Gamma-ray]]s are [[emit]]ted from the [[Atomic Nucleus|atomic nucleus]] of [[Unstable Isotope|unstable]] [[Radioactive|radioactive]] [[isotope]]s which can be injected into a patient and they can penetrate most [[material]]s so they leave the body without being [[reflect]]ed, [[refract]]ed or [[Absorb (Physics)|absorbed]] by the [[tissue]].
====Dangers====
: [[Gamma-ray]]s can cause cancer because [[gamma-ray]]s can [[penetrate]] soft [[tissue]] and can ionise and damage [[DNA]] [[molecule]]s in the body [[Cell (Biology)|cells]] leading to a [[mutation]].
: High intensity [[gamma-ray]]s can cause [[Radiation Sickness|radiation sickness]] because they can ionise and damage all parts of a [[Cell (Biology)|biology]] killing that [[Cell (Biology)|cell]].