In gamma spectroscopy, what does a peak at a particular energy indicate?

In gamma spectroscopy, what does a peak at a particular energy indicate?

• A. It indicates a gamma transition with that energy from a specific nuclide; helps identify isotopes.
• B. It measures the energy of a detected particle to determine its kinetic energy.
• C. It only signals background radiation with no isotope information.
• D. It indicates a neutron emission at that energy.

Answer: (A)