GROSS ANATOMY

GROSS ANATOMY

RADIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Your patients head should always be facing the ____ on the x-ray machine.
A
cathode
B
anode
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The anode angle is the angle between the vertical and the target surface with most x-ray tubes having an anode angle of 12-15°. A smaller angle results in a smaller effective focal spot. The whole anode is not included in x-ray production. X-rays are produced on the rather small rectangular surface, the focal spot.

Detailed explanation-2: -The anode is the electrically positive (+) side of the x-ray tube circuit Some anodes, like those used for dental x-rays and some portable x-ray machines, are stationary (the anode does not rotate). X-ray machines inside radiology departments usually have rotating anodes.

Detailed explanation-3: -The rotating anode x-ray tube allows the electron beam to interact with a much larger target area; therefore, the heating of the anode is not confined to one small spot, as in a stationary anode tube.

Detailed explanation-4: -The anode is the component in which the x-radiation is produced. It is a relatively large piece of metal that connects to the positive side of the electrical circuit. The anode has two primary functions: (1) to convert electronic energy into x-radiation, and (2) to dissipate the heat created in the process.

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