DH 1401 Ch 2 Radiation Physics Quiz

What is the fundamental unit of matter?

• Proton

• Electron

• Atom

• Neutron

What is the process of converting an atom into ions called?

• Ionization

• Absorption

• Scattering

• Decay

Which type of radiation is capable of producing ions?

• Non-ionizing radiation

• Alpha particles

• Beta particles

• Gamma rays

What is the purpose of a lead collimator in the x-ray machine?

• To increase the voltage

• To decrease the voltage

• To restrict the size of the x-ray beam

• To filter out nonpenetrating x-rays

Which type of x-ray radiation is responsible for producing densities on film?

• No interaction

• Absorption of energy

• Compton scatter

• Coherent scatter

What is the primary component of the x-ray machine?

• Control panel

• Extension arm

• Tubehead

• X-ray tube

What is the purpose of the filament circuit in the x-ray machine?

• To control the exposure time

• To regulate the flow of electrical current to the filament

• To increase the voltage

• To decrease the voltage

Which type of radiation is produced when a high-speed electron dislodges an inner-shell electron from a tungsten atom?

• No interaction

• Absorption of energy

• Compton scatter

• Characteristic radiation

What is the function of the autotransformer in the x-ray machine?

• To convert alternating current to direct current

• To increase the voltage

• To decrease the voltage

• To correct for minor fluctuations in current

What is the term for the sudden stopping of high-speed electrons when they hit the tungsten target in the anode?

• No interaction

• Absorption of energy

• Compton scatter

• Braking radiation