1. what is the thickness of a material
for a beta particles to be stopped by?
beta
particles can travel several centimeters in air and can be stopped by light
cloth or paper, a few millimeters of aluminum sheet can as well stop beta ray.
Different
materials are able to absorb beta particles by different amounts. The ability
to absorb depends on factors such as the
extent to which the material is ionised by the betas and the density of the
material (the number of atoms a beta meets per unit length of its travel). source
beta ray
contain electron and can therefore ionize when they interact with object, it is
advisable to be protected from beta particle emission.
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