The Xray Imaging System Part 1 Flashcards Preview

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Flashcards in The Xray Imaging System Part 1 Deck (41):
1

Sections of X-ray machine circuitry

Primary side
Secondary Side
Filament circuit

2

Primary side :

Main breaker
Exposure switch
Autotransformer
Timer circuit

3

Secondary side :

High voltage step up transformer
Four-diode rectifier circuit
X-ray tube
Rotor stator

4

Filament Circuit

Filament circuit variable resistor
Filament step down transformer

5

Control console controls:

Voltage applied to the X-ray tube
Current through the X-ray tube
Exposure time

6

Most familiar part with rad tech

Control/operating console

7

Control booth contains:

Operator console
Technique charts
Space to store cassettes

8

Wall is made / shielded by:

Lead

9

Provided for monitoring kVp, mA and exposure time

Meters

10

Electric circuits connected to the meters are at ____

Low voltage to avoid electric shock

11

X-ray imaging is operated on ____

220 V power ;
110 V or 440V

12

Main problem

Accuracy of electric power supply

13

How much variations can affect X-ray production

5%

14

Measures the voltage provided to the X-ray imaging system

Line compensator / Line voltage compensator (LVC)

15

Adjust voltage to precisely 220 V

Line compensator / Line voltage compensator (LVC)

16

Makes voltage uniform or "smooth"

Line compensator / Line voltage compensator (LVC)

17

The power supply is first delivered to

Autotransformer

18

It has single winding and designed to supply a precise voltage

Autotransformer

19

Autotransformer is designed to supply a precise voltage to ___

Filament circuit
High voltage circuit

20

Determines voltage to step-up transformer

Autotransformer

21

Autotransformer is connected to the ____

KVp selector on the console

22

2 adjustments of kVp

Major kVp
Minor kVp

23

Minor kVp ____ the selected technique

Fine tunes

24

Major and minor kVp represents _____ on the autotransformer

Two separate series of connection

25

In series with the timer

Exposure switch

26

Exposure switch AKA

"Dead man switch"

27

Automatically terminates the exposure when finger ceases on the timer button

Dead man

28

Control the length of X-ray

Exposure timer

29

With high powered X-ray sets ; exposure time is

Very short and minimum time interval

30

Exposure timer should be

High degree of accuracy

31

Clockwork timer

Mechanical timer

32

Have electric motor called synchronous motor

Synchronous timer

33

Allow wide range of time intervals to be selected

Electronic timer

34

Most accurate X-ray exposure timer

Electronic timer

35

Monitors the product of mA and exposure time

mAs timer

36

Designed to provide the highest safe tube current

mAs timer

37

also known as filament heating isolation step-down transformer

Filament transformer

38

Steps down the voltage to approx. 12V and provide current to heat the filament

Filament transformer

39

Primary windings is made of ____ and provide current of _____ and approx _____

Thin copper
0.5 to 1 A
150 V

40

Secondary windings are _____ and approx ____ and carry a current of _____

Thick
12V
5 to 8 A

41

Three main components of X-ray imaging system

X-ray tube
Control console
High voltage generator