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WorksheetsRadiology and Radiation Quiz
Total questions: 16
Worksheet time: 8mins
Which of the following is NOT an SI unit?
Roentgen
Gray
Sievert
Becquerel
What are beta particles?
High-speed electrons
High-speed protons
Neutral radiation particles
Particles emitted from a nucleus at rest
What SI units are used to describe dose in therapeutic radiology?
Roentgen and Rad
Gray and Centigray
Rem and Sievert
Curie and Becquerel
Who discovered X-rays and when?
Marie Curie, 1898
Henri Becquerel, 1896
Wilhelm Roentgen, 1895
Thomas Edison, 1900
What are X-ray photons?
High-speed electrons
Particles with mass and charge
Packets of electromagnetic energy without mass or charge
Ionized atoms
Which is NOT a type of interaction between X-radiation and biological matter?
Compton scattering
Pair production
Photoelectric absorption
Bremsstrahlung
What does the “Z” symbol represent in an element?
Atomic weight
Atomic number
Number of neutrons
Electron binding energy
Pair production involves which of the following?
An interaction between X-rays and the outer shell electrons
The splitting of an atomic nucleus
A matter-antimatter annihilation reaction
The release of neutrons from a radioactive nucleus
What are enhanced natural sources of radiation?
Radiation from naturally occurring materials that has been increased by human activities
Artificial radiation sources from medical imaging
Cosmic radiation from the sun
Radiation from uranium mines only
What are the two forms of cosmic radiation?
Alpha and beta radiation
Solar and galactic cosmic rays
Gamma and neutron radiation
X-ray and ultraviolet radiation
How can radon enter houses?
Through food contamination
By being carried in on clothing
Through cracks in floors, walls, and foundations
From electrical wiring
What is the most common unit for measuring equivalent dose?
Gray (Gy)
Sievert (Sv)
Roentgen (R)
Becquerel (Bq)
Which of the following is an example of a human-made radiation source?
Cosmic radiation
Radon gas
Medical X-rays
Terrestrial radiation
In photoelectric absorption, what must the incoming X-ray photon have?
Energy less than the electron binding energy
Energy equal to or greater than the electron binding energy
The same energy as the free radicals in the cell
A charge opposite to that of the nucleus
If free radicals strike DNA and cause damage through indirect interaction, what was the immediate cause?
Ionization of DNA molecules directly
Free radicals produced from radiation interacting with water molecules
The release of alpha particles
DNA repair mechanisms failing
If a biologic reaction is produced by 4 Gy of test radiation, and it takes 16 Gy of 250 kVp X-rays to produce the same effect, what is the RBE of the test radiation?
2
4
8
16
