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Technologists Guide to technical parameters.

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Important Scatter Factors to Know

  • Collimation: field of view or collimation setting (very important setting to monitor as a technologist for scatter)
  • kVp: The tube potential is a determining factor in patient scatter.
  • Air Gap: The distance between the patient and the detector can influence the scatter.
  • Thickness: The object thickness has significant impact on the measured x-ray scatter
  • Anti-scatter Grid: If scatter can not be reduced with other means anti-scatter grids can be used to preferentially stop scattered photons.
  • BUCKY Factor: Anti-scatter grids are used to boost the contrast but there is an associated dose penalty expressed as the Bucky Factor.

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I absolutely love this website! I am always looking for educational material that will assist educating future Radiologic Technologists. How Radiology Works has become one of my favorite educational resources due to its simple (and sometimes witty) approach to educating students about CT and x-ray.

Rebecca Raether

Rebecca Raether

Technologist, MSRS RT(R) (CT)

Brian’s lessons on How Radiology Works are something else. Awesome illustrations that are simple, rich and renewing. Thanks so much for undertaking such wonderful work. The reason is that most radiographers need a review of what they already should know and for students your methods are quite lovely.

Franklin Chiedozie Omeje

Franklin Chiedozie Omeje

Radiographer

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