X Rays

By Marco Herrera Period 2

What is an X Ray?

X Rays are an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light.

Wavelegth range of an X Ray

Most X-rays have a wavelength ranging from 0.01 to 10 nanometers

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Frequency range of X Rays

corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz)

X Ray Velocity in a Vacuum

X-rays are a form of electromagnetic radiation just like visible light. They travel at the same speed (299,792 km/s in a vacuum) as visible light. The only difference is that x-rays have a much higher frequency (~10^18 Hz) and hence a much shorter wavelength (~1 nm) than visible light.

Benifits of X Rays

  • noninvasively and painlessly help to diagnosis disease and monitor therapy;
  • support medical and surgical treatment planning; and
  • guide medical personnel as they insert catheters, stents, or other devices inside the body, treat tumors, or remove blood clots or other blockages.
  • Risk of the X Rays

  • -radiation dose - The lifetime risk of cancer increases the larger the dose and the more X-ray exams a patient undergoes.
  • -patient’s age - The lifetime risk of cancer is larger for a patient who receives X-rays at a younger age than for one who receives them at an older age.
  • -patient’s sex - Women are at a somewhat higher lifetime risk than men for developing radiation-associated cancer after receiving the same exposures at the same ages.
  • -body region - Some organs are more radiosensitive than others.
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