Too Many X-ray Machines

Question 1

Off focus radiation

Answer 1

Photons out of focal spot

Question 2

Penumbra

Answer 2

Blurred halo area around an image

Question 3

Small focal spot has _________ clarity

Answer 3

More

Question 4

A larger focal spot creates……….

Answer 4

Penumbra

Question 5

The result of the angle of the anode causing variation in the intensity of the x-ray beam across the field

Answer 5

Heel effect

Question 6

Which side of the x-ray field has a higher intensity x-ray beam?

Answer 6

Cathode

Question 7

How do you create more balanced x-rays in spite of the heel effect?

Answer 7

The denser part of the patient goes under cathode

Question 8

The anode angle and the heel effect have an ________ relationship. Meaning when the anode angle decreases, the heel effect increases

Answer 8

Inverse

Question 9

What does a step up transformer do in the x-ray generator?

Answer 9

Provide high voltage needed converting volts to kilovolts through electron acceleration; inverse relationship with amperage

Question 10

Auto transformer

Answer 10

delivers the selected kVp 40-120