What does the Bragg peak appearing in the LET characterising the interaction of alpha particles with matter mean?

Question

Accepted Answer

An alpha particle causes the greatest ionisation near the end of its path (in the stopping region).

Answer

An alpha particle of MeV-scale energy can lose a significant amount of its kinetic energy in the form of radiation.

Answer

The penetration depth is independent of the kinetic energy of the alpha particle.

Answer

An alpha particle causes the greatest ionisation when it strikes the surface perpendicularly.

Answer

I choose not to answer.

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