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AnodeHeel Effect 147

QuestionAnswer
Line Focus Principle- The actual and effective focal spot are affected by angling the anode
Anode Heel Effect- The variation in beam intensity is affected by angling the anode
Anode angle decreasing results in- smaller effective focal spot size
Anode angle increasing results in- larger effective focal spot size
A larger actual focal spot _______ Dissipates more heat
A smaller effective focal spot size _______ Has better Spatial Resolution
___________ is smaller than the Actual Focal Spot The Effective Focal Spot
The Cathode Side has ______ intensity Greater
The ________ should therefore be placed over the thicker body part if possible The Cathode Side
The Anode Side has _____ intensity Lower
X rays are formed _____, not just at the surface Inside the tungsten anode
As x-rays travel through the ____, attenuation occurs Anode
X-rays on _____ travel a greater distance The Anode Side
The ______ is negative Cathode
The cathode side of the beam has _______ Photons More
The anode side of the beam has ______ photons Less
Larger Angle = Smaller Anode Heel Effect (less variation of intensity along the beam)
Smaller Angle = Larger Anode Heel Effect (more variation of intensity along the beam)
______ = Smaller Anode Heel Effect (less variation of intensity along the beam) Longer SID
_______ = Larger Anode Heel Effect (more variation of intensity along the beam) Shorter SID
Tungsten is a good thermal conductor and has an atomic number of ______ 74
Molybdenum Is lightweight and is used for the target in _____ Mammography
Molybdenum Is good for rotation and is used for the stem in ____ X-Ray
Both Tungsten and Molybdenum have a ________ High Melting Point
Mammography uses a Molybdenum-_________ Alloy Rhodium
X-Ray uses a Tungsten-________ Alloy Rhenium
Created by: user-2016295
 

 



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