A scintillation counter
A)measures the signal coming from an ionized gas.
B)measures light emissions from excited atoms.
C)depends on an avalanche of electrons generated as a particle moves through a tube of argon gas.
D)detects high energy radiation better than low energy radiation.
E)detects an electric current in a gas.

Question

Quizplus · Accepted Answer

A scintillation counter measures light emissions from excited atoms. When a high-energy particle strikes a scintillating material, it causes the atoms in the material to become excited and emit light. This light is then detected by a photomultiplier tube, which converts the light into an electrical signal.

A Scintillation Counter