kVp Q&A
kVp (4) - (correct answer)-controls the speed of the electrons in the tube current
-expressed in kilovolts
-increasing kVp
-kVp is the quality of the beam (determines penetration of the part)
Controls the speed of the electrons in the tube current (2) - (correct answer)-measures
the maximum electrical potential across the X-ray tube
-potential diff that moves the electrons in the tube from cathode to anode
Increasing kVp (3) - (correct answer)-increase exposure rate (shorter wavelength)
-increases percentage of high energy photons
-increases number of photons at all energy levels
kVp is the quality of the beam (2) - (correct answer)-increasing kVp increases
penetration (increasing transmission)
-decreasing kVp decreases penetration (decreasing transmission)
kVp and film screen img. (6) - (correct answer)-is the controlling factor for contrast
-is an influencing factor for density
-density and kVp have a direct relationship
-15% rule
-contrast and kVp
-15% rule of kVp can be used to alter the contrast of an image
15% rule (2) - (correct answer)-a 15% increase in kVp roughly equals a double in
density
-a 15% decrease in kVp roughly equals a 1/2 in the density
kVp (4) - (correct answer)-controls the speed of the electrons in the tube current
-expressed in kilovolts
-increasing kVp
-kVp is the quality of the beam (determines penetration of the part)
Controls the speed of the electrons in the tube current (2) - (correct answer)-measures
the maximum electrical potential across the X-ray tube
-potential diff that moves the electrons in the tube from cathode to anode
Increasing kVp (3) - (correct answer)-increase exposure rate (shorter wavelength)
-increases percentage of high energy photons
-increases number of photons at all energy levels
kVp is the quality of the beam (2) - (correct answer)-increasing kVp increases
penetration (increasing transmission)
-decreasing kVp decreases penetration (decreasing transmission)
kVp and film screen img. (6) - (correct answer)-is the controlling factor for contrast
-is an influencing factor for density
-density and kVp have a direct relationship
-15% rule
-contrast and kVp
-15% rule of kVp can be used to alter the contrast of an image
15% rule (2) - (correct answer)-a 15% increase in kVp roughly equals a double in
density
-a 15% decrease in kVp roughly equals a 1/2 in the density
