1/13
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
Which side is positive?
Anode
Which side is negative?
Cathode
What is the role of the glass envelope?
Contain and maintain the vacuum. It lets air exit the xray tube, permitting efficiency or flow of electrons through the cathode and anode
What is the role of the tube housing?
Prevents leakage and insulates, prevents leakage radiation
What end of the tube has the filament and focusing cup?
Cathode
What are the types of anodes? Why is a rotating anode preferred over a stationary anode?
Stationary and rotating, the rotating is preferred because it can achieve high temperatures
What is the anode made of? Why is that anode material used? What are the benefits?
The anode is made of tungsten and the benefits are that they can handle high temperatures, high atomic number, high melting point
Describe the induction motor:
Rotation is achieved using of an induction motor located outside the x-ray tube, which turns a rotor located inside the x-ray tube; the target is attached at the end of the rotor
What is a stator?
Electric motor that makes the rotor achieve big speeds
What does the rotor do?
Connected to the target through the anode, spins the anode allowing heat to be spread out across a large area
What do the bearings do?
Support and enables rotation
Anode heel effect : Can you define anode heel effect?
The x-ray beam has a major intensity (quantity) in the cathode end but a less intensity in the anode end
Anode Heel Effect: Why is the beam more intense on the cathode end?
X-rays produce deeper within the anode must pass through more material which absorbs some of the beam, the absorption reduces intensity on the anode side
Anode Heel Effect: If the degree of anode angle decreases - will that increase or decrease the anode heel effect?
It increases a smaller angle means x-rays have to travel through more anode material exit