X-rays (CIE A Level)

Where are the x-rays generated?

• X-ray tube

• Collimator

• Cathode

• Voxel

Where are the electrons emitted from in an X-ray tube?

• Cathode

• Anode

• Anode arm

• Battery

Why does the anode arm rotate?

• To stop it getting too hot

• To focus the x-ray beam

• To scatter the x-ray beam

• To allow the anode to warm up

How are the electrons accelerated in the x-ray tube?

• A voltage between anode and cathode

• Static electricity

• Anode rotates

• Cathode moves

What is this?

• An x-ray line spectrum

• An x-ray absorption spectrum

• An x-ray spectrum

• A band spectrum

What does the red arrow point to?

• Characteristic radiation

• Braking radiation

• X-ray spectrum

• Unique absorption lines

What does the green arrow point to?

• Characteristic radiation

• Braking radiation

• X-ray spectrum

• Unique absorption lines

Characteristic radiation depends on the anode's material. It has little medical use. True or false

• True

• False

What causes the emission of the braking radiation?

• Electrons attracted towards anode

• Electrons decelerating

• Electrons accelerating

• Electrons being absorbed by anode

What does the hardness of an x-ray relate to? Choose all that are correct.

• amount of energy of the x-rays

• Amount of attenuation of the x-ray

• Penetrating power of x-ray

• Frequency of x-ray photons