Components of the Imaging system

Question 1

Components of the imaging system

Answer 1

1. X-ray tube
2. Operating console
3. HTT

Question 2

The operating console

Answer 2

• Allows the radiographer to control the x-ray tube current & voltage so that the useful x-ray beam is of proper quality & quantity

Question 3

Function of the operating console

Answer 3

• Provides control of exposure factors(kVp, mA & exposure time mAs).

Question 4

How is the electrical circuit of an x-ray unit obtained.

Answer 4

• By connecting it
  to the output of the mains isolator unit.

Question 5

Divisions of the Electrical circuit of an x-ray unit

Answer 5

• The main circuit(generator)
• The filament circuit.

Question 6

Function of the main circuit

Answer 6

• supplies the x-ray tube

Question 7

Function of the filament circuit

Answer 7

to supply the filament of the x-ray tube

Question 8

mutual induction

Answer 8

• A process whereby a changing current in one coil induces a voltage in a nearby coil

Question 9

explain the process of mutual induction

Answer 9

• When AC is applied to the primary winding of the x-ray transformer, it creates a changing magnetic field around the primary coil
• This changing magnetic field induces an alternating electromotive force in the primary windings
• The changing magnetic field generated by the primary windings cuts across the secondary winding
• According to Faraday’s law of electromagnetic induction, this changing magnetic field induces an EMF in secondary winding.
• The induced EMF in the secondary winding causes an alternating current flow through the secondary circuit

Question 10

self-induction

Answer 10

refers to phenomenon where the changing current in one winding induces EMF in the same winding.

Question 11

Transformers in the x-ray circuit

Answer 11

1. The autotransformer
2. High voltage step-up transformer
3. The filament transformer