Author Question: Increasing the field size results in: patient dose increasing radiographic density decreasing all ... (Read 53 times)

2125004343

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Increasing the field size results in:
 
 patient dose increasing
  radiographic density decreasing
  all of these answers apply
  radiographic contrast increasing

Question 2

A timing device that automatically terminates exposure once density has reached the image receptor is:
 
 synchronous timer
  electronic timer
  automatic timer
  kilovolt peak meter



Bigfoot1984

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Answer to Question 1

patient dose increasing

Rationale: Increasing the field size results in increased patient dose as well as scatter radiation, this resulting in increased radiographic density and decreased radiographic contrast.

Answer to Question 2

automatic timer

Rationale: An automatic timer or photo timer is designed to terminate the exposure once sufficient density has reached the image receptor.



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