Topic 26

Question 1

Describe x-ray production

Answer 1

Evacuated glass tube containing hot tungsten cathode

X-rays produced in the focus

Question 2

Describe the properties of x-rays

Answer 2

Short wavelength

Big penetrating power

Question 3

Give the effects of x-rays

Answer 3

Ionisation

Luminescence

Photographic effect

Chemical Effects (H₂O → H₂O₂)

Biological effects

Question 4

Describe Bremsstrahlung x-rays

Answer 4

Produced by colliding with atoms.

Power depends on proportionality of the voltage, the electron current and the atomic number of the target.

Question 5

Describe Characteristic x-rays

Answer 5

Electroons ionise inner atomic shells, x-rays are emitted during the rearrangement.