Exam 6: The X-ray Tube

The target of the rotating anode is usually coated with a _____ alloy.

As an x-ray tube ages,the inside can become coated with tungsten,which can cause _____ in the tube.

Thermionic emission at the filament creates a _____.

Tube failure can occur from _____.

The external structure of the x-ray tube includes the support structure,the protective housing,and the _____.

The _____ is/are outside the glass envelope.

The filament in an x-ray tube is about _____ cm in length.

A dual focus tube has two _____.

The negative side of the x-ray tube holds the _____.

The filament is made of _____.

What is the most common cause of tube failure?

The _____ is the source of radiation in the x-ray tube.

The effective focal spot size is _____ the actual focal spot size.

Each tube has its own tube rating chart to show _____.

The cathode side of the tube should be directed toward the _____ part of the patient.

High capacity tube rotors revolve at _____ rpm.

The heel effect is caused by the _____.

Localized pitting or cracking on the anode can occur from _____.

The rotating anode is turned by a _____.

The x-ray intensity is lower on the anode side of the tube because of the _____.