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Radiation Unit 2 Physics

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ball1st1cpengu1n's version from 2015-05-06 11:06

Section

Question Answer
α particleHelium Nucleus
β particleElectron
γ particleNone (It's an E.M. Wave)
α charge+
β charge-
γ chargeN/A
α range in air2-3 cm
β range in air2-3 m
γ range in airvery penetrating
α penetrationstopped by skin or paper
β penetration stopped by 3 mm of Al
γ penetrationReduced intensity by lead (NOT STOPPED)
α ionisationStrong
β ionisationWeak
γ ionisation Very Weak
α speed 5% Speed of Light
β speed50% Speed of Light
γ speedSpeed of Light
α most dangerous Inside Body
β most dangerousOutside Body
γ most dangerousOutside Body
memorize

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