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Questions and Answers
What are the three major branches of the field of radiology?
What are the three major branches of the field of radiology?
- Radiation Therapy, Nuclear Medicine, and CT Scan
- Diagnostic Radiology, Radiation Therapy, and Nuclear Medicine (correct)
- Diagnostic Radiology, Nuclear Medicine, and MRI
- Diagnostic Radiology, Radiation Therapy, and Ultrasound
What happens when a high-speed electron strikes an atom?
What happens when a high-speed electron strikes an atom?
- It produces a gamma-ray photon
- It creates a magnetic field
- It converts some or all of its energy into an X-ray photon (correct)
- It releases a neutron
What is the purpose of the target, or anode, in a modern X-ray unit?
What is the purpose of the target, or anode, in a modern X-ray unit?
- To convert some or all of the electron's energy into an X-ray photon (correct)
- To evacuate the space
- To produce a magnetic field
- To accelerate the negative electrons
What is the source of electrons in a modern X-ray unit?
What is the source of electrons in a modern X-ray unit?
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What is the function of the high positive potential in a modern X-ray unit?
What is the function of the high positive potential in a modern X-ray unit?
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Study Notes
Branches of Radiology
- Radiology consists of three major branches: Diagnostic Radiology, Radiation Therapy, and Nuclear Medicine.
Production of X-ray Beams
- High-speed electrons convert their energy into X-ray photons when they strike an atom.
- This process occurs in an X-ray unit.
Components of a Modern X-ray Unit
- Source of electrons (filament or cathode) to produce electrons.
- Evacuated space to accelerate the electrons.
- High positive potential to accelerate the negative electrons.
- Target or anode for the electrons to strike and produce X-ray photons.
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