LRA 212: Final Exam Study Guide: Latest Updated A+ Guide
Solution
The cathode side of the tube should be directed toward the _____ part of the patient. - ANSWER:Thicker
The most widely used support structure for the x-ray tube is the ______________. - ANSWER:ceiling
support system
Tube failure can occur from _______________. - ANSWER:long exposure times
As an x-ray tube ages, the inside can become coated with tungsten, which can cause _____ in the tube. -
ANSWER:arcing
The negative side of the x-ray tube holds the ________. - ANSWER:filament
The filament is made of __________. - ANSWER:Tungsten
The effective focal spot size is _____________ the actual focal spot size. - ANSWER:smaller than
The external structure of the x-ray tube includes the support structure, the protective housing, and the
___________. - ANSWER:glass envelope
Thermionic emission at the filament creates a __________. - ANSWER:space charge
The target of the rotating anode is usually coated with a ___________ alloy. - ANSWER:Tungsten
What is the most common cause of tube failure? - ANSWER:Tungsten vaporization
The filament in an x-ray tube is about _____ cm in length. - ANSWER:1-2
When electrons bombard the target, ____% of their kinetic energy is converted to heat. - ANSWER:99
When electrons bombard the target, ____% of their kinetic energy is converted to heat. - ANSWER:99
The rotating anode is turned by a ____________. - ANSWER:magnetic field
The cathode side of the tube should be directed toward the _____ part of the patient. - ANSWER:thicker
The most widely used support structure for the x-ray tube is the ______________. - ANSWER:ceiling
support system
Tube failure can occur from _______________. - ANSWER:long exposure times
The external structure of the x-ray tube includes the support structure, the protective housing, and the _
- ANSWER:glass envelope
Localized pitting or cracking on the anode can occur from _____________. - ANSWER:a single excessive
exposure
The heel effect is caused by the ___________. - ANSWER:anode angle
Solution
The cathode side of the tube should be directed toward the _____ part of the patient. - ANSWER:Thicker
The most widely used support structure for the x-ray tube is the ______________. - ANSWER:ceiling
support system
Tube failure can occur from _______________. - ANSWER:long exposure times
As an x-ray tube ages, the inside can become coated with tungsten, which can cause _____ in the tube. -
ANSWER:arcing
The negative side of the x-ray tube holds the ________. - ANSWER:filament
The filament is made of __________. - ANSWER:Tungsten
The effective focal spot size is _____________ the actual focal spot size. - ANSWER:smaller than
The external structure of the x-ray tube includes the support structure, the protective housing, and the
___________. - ANSWER:glass envelope
Thermionic emission at the filament creates a __________. - ANSWER:space charge
The target of the rotating anode is usually coated with a ___________ alloy. - ANSWER:Tungsten
What is the most common cause of tube failure? - ANSWER:Tungsten vaporization
The filament in an x-ray tube is about _____ cm in length. - ANSWER:1-2
When electrons bombard the target, ____% of their kinetic energy is converted to heat. - ANSWER:99
When electrons bombard the target, ____% of their kinetic energy is converted to heat. - ANSWER:99
The rotating anode is turned by a ____________. - ANSWER:magnetic field
The cathode side of the tube should be directed toward the _____ part of the patient. - ANSWER:thicker
The most widely used support structure for the x-ray tube is the ______________. - ANSWER:ceiling
support system
Tube failure can occur from _______________. - ANSWER:long exposure times
The external structure of the x-ray tube includes the support structure, the protective housing, and the _
- ANSWER:glass envelope
Localized pitting or cracking on the anode can occur from _____________. - ANSWER:a single excessive
exposure
The heel effect is caused by the ___________. - ANSWER:anode angle
