Chapter 5: The X-Ray Tube Flashcards
The positive side (Anode)
Roter and stator coils
The X-Ray tube
Process x-ray for diagnostic imaging
Routine diagnosis, C-Arms, and other decimated equipment
Only way (man-made)
99% of energy = heat
X-ray process
1% of energy
Source of electrons
Cathode filament
Anatole contains
Target
Tungsten anode
High voltage
Vacuum
X-eat tube works on principle of electrons flowing through a vacuum
The cathode assembly
(Negative side)
Filament, focusing cup, high voltage, associated wiring, filament circuit
Thermionic emission
Electrons to shoot across tube
Low voltage side of x-ray circuits
Source of electrons
Vibrations
Balance bond of valence band
Jumping of electrons
Causes heat
Thoriated tungsten
Wires that light up inside like hair dyer
0.1-0.2 mm thick
1-2mm wide
7-15mm long
Tungsten
Hard to melt, melting point is 3,370
Electrons to be released from filaments (boiled off)
Similar to light bulb
Two filaments wires
Dual focus arrangements
Small- better detail
Larger- bigger body part