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Questions and Answers
Which of the following are characteristics of x-rays? (Select all that apply)
Which of the following are characteristics of x-rays? (Select all that apply)
- Create heat
- Travel in straight lines (correct)
- Cause exposure (correct)
- Penetrate substances (correct)
- Scattering of radiation (correct)
- Visible to the naked eye
What change do x-rays cause to the photographic plate?
What change do x-rays cause to the photographic plate?
Cause it to change from silver to black
Define radiolucent.
Define radiolucent.
Permits the passage of most x-rays and appears black on film.
Define radiopaque.
Define radiopaque.
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What characteristic is necessary to create shadow images on the x-ray plate?
What characteristic is necessary to create shadow images on the x-ray plate?
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Define scatter.
Define scatter.
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How is scatter minimized?
How is scatter minimized?
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Study Notes
Characteristics of X-Rays
- X-rays exhibit six key characteristics: Scattering, Invisible, Penetration, Traveling in straight lines, Ionization, and causing Exposure (SIPTIC).
- X-rays scatter radiation when they interact with materials, affecting image quality.
- They are invisible to the human eye, making them useful for medical imaging without causing visual disruption.
- X-rays can penetrate various substances, allowing for internal imaging of the body.
- They travel in straight lines, essential for creating clear shadow images on x-ray plates.
- X-rays have ionizing properties, meaning they can ionize atoms and molecules, which is important for their diagnostic capabilities.
- Exposure to x-rays causes photographic plates to develop from silver to black, enabling visualization of the imaged area.
Radiolucent
- Radiolucent substances allow the passage of most x-rays, appearing black on the resulting film.
- Examples include soft tissues and certain fluids, which help differentiate structures in imaging.
Radiopaque
- Radiopaque materials obstruct the passage of x-rays, resulting in a white appearance on film.
- Common examples include bones and certain contrast agents used in imaging.
Shadow Images
- The ability of x-rays to travel in straight lines is crucial for producing shadow images, enhancing diagnostic accuracy in imaging.
Scatter
- Scatter refers to the phenomenon when x-rays interact with materials after hitting the film, potentially degrading image quality.
Minimizing Scatter
- Use of a grid in front of the film helps absorb scattered x-rays, improving the clarity and quality of the x-ray images.
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