NEW
Font size
WorksheetsX-Ray Tube
Total questions: 17
Worksheet time: 9mins
What are the two main components of an x-ray tube?
Filament and Rotor
Cathode and Anode
Stator and Bearing
Glass Envelope and Housing
What is the primary function of the cathode in an x-ray tube?
To produce a thermionic cloud
To serve as a target for electrons
To dissipate heat
To support the x-ray tube
Which material is commonly used for the target anode in x-ray tubes?
Copper
Aluminum
Tungsten
Lead
The purpose of the glass envelope in an x-ray tube is to provide
radiation and electrical protection.
electrical and thermal protection.
electrical, thermal and physical protection.
electrical, thermal, physical and radiation protection.
The physical area of the focal track that is impacted by the electrons is called
actual focal spot
effective focal spot
The primary undesirable product generated by the x-ray tube is
X-rays
Heat
Radiation
Electrons
The function of the focusing cup in the cathode is
To support the anode
To produce x-rays
To focus the electron stream
To dissipate heat
Which type of anode is most commonly used in modern radiography equipment?
Rotating anode
Dual-focus anode
Fixed anode
Stationary anode
What is the purpose of the line-focus principle?
To increase the size of the focal spot and enhance image quality
To decrease the effective focal spot size while reducing the heat
To enhance radiation protection
To improve electrical insulation
What is the primary role of the anode in an x-ray tube?
To conduct high voltage
To generate heat
To produce thermionic emission
To serve as a target for electrons
The main advantage of using a rotating anode is
Easier maintenance
Higher heat dissipation
Smaller size
Lower cost
What is the purpose of the oil surrounding the glass envelope?
To protect x-ray tube from leakage radiation
To support the cathode
To enhance x-ray production
To provide electrical insulation and cool the x-ray tube.
The effect of the anode heel is
Lower intensity in the direction of the anode
Uniform intensity across the x-ray beam
Increased x-ray intensity at the anode
Decreased x-ray intensity at the cathode
What is off-focus radiation?
Radiation absorbed by the housing
Radiation emitted from the glass envelope
Radiation produced outside the focal spot
Radiation produced at the focal spot
A smaller effective focal spot is preferred because it will improve recorded detail of the images.
True
False
Which component of the x-ray tube is responsible for producing the electron beam?
Focusing cup
Glass envelope
Stator
Filament
What is the main disadvantage of a fixed anode compared to a rotating anode?
Higher cost
Lower heat capacity
More complex design
Increased size
