Beam Limitation, X-Ray Control, and Failure

Question 1

Beam limiters function (technically inaccurate with parallel rays)

Answer 1

Prevent unnecessary exposure/ CoLliMaTiOn

Question 2

Three types of beam limiters

Answer 2

1. Lead cones
2. Lead Diaphragm
3. Lead Shutters

Question 3

Which type of beam limiter has an adjustable width and length?

Answer 3

Lead Shutters

Question 4

What are six basic selections on the control console?

Answer 4

1. Power
2. kVp selection
3. mA selection
4. Timer
5. Exposure control
6. Warning light

Question 5

What are the two stages of the exposure control

Answer 5

1. Rotor
2. Exposure

Question 6

In machine failure, what could go wrong with the cathode?

Answer 6

Filament evaporation

Question 7

How to prevent filament evaporation in the cathode?

Answer 7

1. Exposure settings
2. Animal control
3. Proper positioning

Question 8

Two types of machine failure with the anode

Answer 8

1. Bearing failure for rotation
2. Heat damage to target

Question 9

How to prevent heat damage with anode failure

Answer 9

1. High kVp and low mAs
2. Allow to warm up

Question 10

Two types of machine failure in the Glass Envelope

Answer 10

1. Arcing (short circuit)
2. Gassy tube