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Medical Physics: Nuclear Medicine Principles

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Medical Physics: Nuclear Medicine Principles

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Questions and Answers

What is the minimum energy required to disassemble a system of particles into separate parts?

Thermal energy

Kinetic energy

Potential energy

Binding energy (correct)

What is the energy required to release electrons from the orbitals of an atom?

Atomic binding energy (correct)

Electron affinity

Ionization energy

Nuclear binding energy

Which of the following is a special unit defined as the energy required to move one electron against a potential difference of one volt?

Newton

Joule

Electron volt (correct)

Calorie

Which of the following mechanisms involves the absorption of a low-energy photon by an atom, resulting in the ejection of an energetic electron?

Photoelectric effect Signup and view all the answers

What happens during Compton scattering?

Both the photon and an electron are scattered from an atom. Signup and view all the answers

At what energy level can photons interact with the field around the nucleus and undergo pair production?

Higher energies Signup and view all the answers

What is the source of gamma rays?

The nucleus of a radioactive atom Signup and view all the answers

What is the source of X-rays?

Outside the nucleus of a radioactive atom, or from an electron as it changes direction when passing an atomic nucleus Signup and view all the answers

What are gamma rays and X-rays collectively referred to as?

Ionizing photons Signup and view all the answers

What is the difference between gamma rays and X-rays?

They differ only in their source. Signup and view all the answers