This is a two-part series that covers some issues that are important to acquiring good quality diagnostic x-rays.
Collimation and Anode Heel Effect
- Collimation
- Design of the collimator
- How the collimator works
- Tricky issues with the collimator
- How collimation improves radiographic definition (detail)
- Details of just how much collimation affects safety
- Hints for collimating and cropping
- A terrific thing you can say to a patient about collimation
- How to change a collimator light bulb
- How to check your collimator light field
- Anode Heel Effect
- Why is it called the “heel’?
- Two advantages of having the anode slanted
- One drawback of having the anode slanted: “the anode heel effect”
- How the heel effect is affected by SID
- How the heel effect is affected by image field size
- How to tell which end is which on your tube
- How to take advantage of the heel effect in recumbent radiography
- How to take advantage of the heel effect in upright radiography