Diagnostic X-ray Production

The wall switch includes the

breaker

electric current provides

necessary voltage and current

4 factors involved in transmitting electricity

voltage, current, resistance, and timer

voltage is measured by

KVP

voltage

speed of electrons

current is measured by

MA

current

amount of electric current that activates x-ray tube

resistance

factor that slows current as travels through wire

A larger diameter tube means what to resistance

low resistance

A smaller diameter means what to resistance

high resistance

what wires are best to avoid line loss

short and small

timer

length of time x-rays are produced

principle of resistance

different sized hoses provide various amounts of resistance depending on diameters

the operating console displays

dials or digital readout

the dials on the operating console display

KVP, MA, time, and line voltage compensator in older units

The amount of volts in a clinic is

220 volts

the voltage controls

penetrability of the x-ray beam

voltage is controlled

by KVP

max amount of voltage is usually

125 kvp

current in generator is used

to create an image

time controls

amount of time radiation is produced

you want shorter exposure times due to

movement and decrease exposure

older x-ray units lowest time is

1/120 of a second

newer x-ray units time can be as low as

1 milisecond

time is linked to

current in MAs

a watt is

a unit of power

power(watt) =

voltafe x current

radiograph units require how many watts

20,000 to 150,000 W

potential difference between

cathode and anode of x-ray tube causes electrons to flow from cathode to anode when exposure switch is closed

potential difference is measurement of

full end compared to empty end

line voltage compensator

stabilizes incoming power

newer x-ray units compensate

automatically

transformer stations

boost power along way from power plant to breaker box

autotransformers within circuit of x-ray machine

increase current and voltage to MA setting

filamen transformer

decreases current and voltage to correct amount to heat cathode filament and produce electron cloud