X-ray Tube Review

What are the conditiond necessary for x-ray production?

• Source of electrons

• Acceleration of electrons

• Focusing of electrons

• Deceleration of electrons

What is the “+” side

Anode

What is the “-” side

Cathode

1

Stator

2

Anode stem

3

Anode disc

4

Filament in focusing cup

5

Glass envelope

6

Rotor

What material is added to the tungsten target?

Rhenium

What metal is added to the filament to increase thermionic emission and extend tube life?

Thorium

Where are x-ray photons created in the tube?

Anode target

What characteristic of x-ray production is the anode responsible for?

Deceleration of electrons

What are the components of the induction motor?

• Rotor

• Stator

• Ball bearings

What is the main purpose of the envelope?

Provide a vacuum

The focusing cup forms electrons into a cloud called a…?

Space charge

When the electrons strike the anode what two things are produced?

X-ray photons and heat

What is created between the cathode and anode?

A potential difference