Types Of Radiation And Their Properties

  • June 2020
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Alpha

Beta

Gamma

α

β

γ

2 protons, 2 neutrons

1 electron

1 photon

Symbol Composed of…

Helium nucleus Fast moving (high energy) electron

A.K.A.

Chemical Symbol

4 2

Electromagnetic (EM) Radiation

0 0

He

0 −1

Charge (e)

+2

-1

0

Mass (kg)

6.64 x 10-27

9.11 x 10-31

0

Ionising Power

Large

Small

Tiny

Absorbed by…

Paper, Skin

Al (~ 5mm) Pb (2-3mm)

Concrete ( > 1m) Pb (several cm)

~ 5cm

~ 1m



Magnetic Field

deflected

deflected (opposite to α)

unaffected

Electric Field

deflected

deflected (opposite to α)

unaffected

Range in air

e

γ

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