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|[[File:BetaIonise.png|center|500px600px]]
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| style="height:20px; width:500px600px; text-align:centerleft;" |When a [[Beta Particle|beta particle]] interacts with an [[atom]] the [[Beta Particle|beta minus particle]] can pass on some of its [[Kinetic Energy Store|kinetic energy]] to an [[electron]] in the [[Outer Shell|outer shell]] causing the [[electron]] to escape '''ionising''' the [[atom]]. This may happen more than once if the [[Beta Particle|beta particle]] [[collide]]s with another [[atom]] with enough [[energy]].
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|[[File:BetaApplication1.png|center|500px600px]]
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| style="height:20px; width:500px600px; text-align:centerleft;" |[[Beta Particle|Beta particles]] can be used to detect the thickness of a [[material]]. The thicker the [[material]] the less [[Beta Particle|Beta particles]] will make it to the detector.
When manufacturing sheets of [[material]] a [[Beta Particle|beta]] source and detector can be used to control the separation of a pair of rollers. When the [[material]] becomes too thick the rollers move closer together, squashing the [[material]]. When the [[material]] becomes to thin the rollers move further apart to squash the [[material]] less.
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