X-ray tube/ circuit

What type of power is the primary side of x ray circuit

low power

What type of power is the secondary side of x ray circuit

High power

What does the autotransformer do

adjusts kVp

What is the kV meter in

in parallel

What does the Primary side do

control and supplies electrical power

What does the secondary side do

produces x rays

What converts volts to kV

step up transformer

What does rectifier do

Converts AC to DC

What is the mA meter in

in series

What does filament circuit do

controls quantity of electrons accelerated

What controls filaments heating

Rheostat

What are the other names for a rheostat

amperage control

variable resistor

What controls mA

Rheostat

How does a transformer work

mutual induction

only on AC

What is a diode

type of rectifier

AC to DC

What equalizes density across image

compensating filter

Average kV of x rays

30-150

average tube angle

10-17 degrees

How many filaments does a x ray tube contain

2

how many focal spots in a tube

2

Average size of focal spot

.6mm and 1mm

What kind of charge is the focusing cup

negative

Size of fraction focus tube

.3mm

What does step down transformer do to current and voltage

voltage decreases

current increases

What does step up transformer do to current and voltage

voltage increases

current decreases

What is electron cloud/ space charge

emitted electrons remaining near filament if no kV is applied

What is the glass envelope made of

pyrex

Average speed of rotating anode

3600 rpm

speed of high speed anode

10,000 rpm

What is an anode cooling chart used for

determines how much heat is dissipated from the tube

Line focus principle

use of an angle on the target increases effectiveness of the focal spot