Questions and Answers
What did Roentgen discover on 8 November 1895?
X-rays
Which diagnostic imaging modality was historically discovered by Roentgen?
X-rays
What is the basic principle of X-rays?
Ability to penetrate various materials
Which example of electromagnetic radiation has the lowest frequency?
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How are images obtained in plain radiography?
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Which diagnostic imaging modality was historically discovered by Roentgen?
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What is the basic principle of X-rays?
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Which example of electromagnetic radiation has the shortest wavelength?
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How are images obtained in plain radiography?
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Which of the imaging modalities involves a PET CT?
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Study Notes
Discovery of X-rays
- Wilhelm Conrad Roentgen discovered X-rays on 8 November 1895.
- He discovered X-rays as a diagnostic imaging modality.
Basic Principle of X-rays
- The basic principle of X-rays is that they are a form of electromagnetic radiation.
Electromagnetic Radiation
- X-rays are an example of electromagnetic radiation with a high frequency.
- They are an example of electromagnetic radiation with a short wavelength.
Plain Radiography
- Images are obtained in plain radiography by using X-rays.
- X-rays are used to create images of the body in plain radiography.
Imaging Modalities
- PET CT is a combination of two imaging modalities: Positron Emission Tomography (PET) and Computed Tomography (CT).
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