Parts of the X-Ray Machine...

on/off switch, exposure button, control devices to regulate x-ray beam

Control panel

Suspends x-ray tube head, allowing for movement and positioning of tube head

Extension arm

Where dental x-rays are produced

Tubehead

Prevents x-rays from escaping

Metal housing

What components are in the metal housing

x-ray tube, transformers, and filled w/ oil

Surrounds x-ray tube and transformers

Insulating oil

What is the purpose of insulating oil

Prevention of overheating by absorbing heat from x-ray production

Seals the oil where x-rays are allowed to exit tube head

Tubehead seal

Where x-ray production occurs

X-ray tube

Altars increase/decrease in voltage

Transformer

Filter out nonpenetrating longer wave-length x-rays

Aluminum disks

Restricts size of x-ray beam

Lead collimator

Aims+shapes x-ray beam; extends from meteal housing→ tube head

Position indicating device (PID)

Glass vacuum tube in which all air is removed

X-ray tube

Prevents x-rays from escaping

unleaded window allows x-ray beam to exit and directs it toward PID

Lead glass housing

Supply e^- to create x-rays, has a negative charge

Cathode

What two structures make up the cathode part of an x-ray machine

Tungsten filament and molybdenum cup

Produces e^- when heated

Tungsten filament

Focuses e^- into narrow beam towards tungsten target

Molybdenum cup

How do we know the amperage

By # of e^-

Converts e^- into x-ray photons

Anode

What two structures make up the anode part of an x-ray machine

Tungsten target and copper stem

Focal spot converting e^- into x-ray photons

Tungsten target (TT)

Breaks heat away from TT

Copper stem

Force required to propel e^- from cathode to anode

Voltage

What is the measurement for voltage

kilovolts kV

e^- flow in one direction

Direct current (DC)

e^- flow in 2 directions

Alternating current (AC)

Conversion of AC→ DC

Rectification

What are the positives about direct current

Steady supply of power, x-rays are smooth and consistent, which decreases pt exposure
operates at lower kV than AC