High Voltage Generator Flashcards

0
Q

Allows generator to be disconnected from power line

A

Circuit breaker

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1
Q

Limits current from power line to generator

A

Circuit breaker

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2
Q

Used to change incoming power to levels needed to produce xrays

A

High voltage generator

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3
Q

Reponsible for increasing the output voltage from the auto transformer to kVp

A

High voltage section

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4
Q

Purpose of oil in high voltage section?

A

electrical insulation

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5
Q

The second voltage is higher than the primary voltage

A

Step up transformer

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6
Q

High voltage only operates on

A

Alternating current

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7
Q

Voltage wave form is

A

Sinusoidal

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8
Q

Difference bet primary and secondary waveform

A

Amplitude

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9
Q

Derived from a cell and uni-directional

Positive and negative terminals are FIXED

A

Direct current

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10
Q

Current changes its direction after equal intervals of time

It has no fixed terminals

A

Alternating current

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11
Q

Produced by acceleration of electrons from cathode to anode

A

Xrays

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12
Q

Process whereby alternating current is converted to direct current

A

Rectification

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13
Q

Electronic device that allows current flow in one direction

A

Rectifier

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14
Q

A device which performs the opposite function ( DC to AC)

A

Inverter

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15
Q

Electronic device that contains two electrodes

A

Diode

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16
Q

Conductor through which electric current is passed

A

Electrode

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17
Q

Solid state rectifiers are made of ___

A

Silicon

18
Q

The ability to conduct electricity

A

Semiconductors

19
Q

2 types of semi conductors

A

N-type

P-type

20
Q

Have loosey bound electrons

A

N-type

21
Q

Have spaces (holes) there are no electrons

A

P type

22
Q

Flow of electrons

A

Electric current

23
Q

The current that passes through the xray tube exists inly during positive half of the cycle

A

Unrectified voltage

24
Q

Types of rectification

A

Half wave rectification

Full wave rectification

25
Q

Simpliest type of rectifier since it only uses one diode

A

Half wave rectification

26
Q

Consists of at least four diodes in high voltage circuit

A

Full wave rectification

27
Q

Four rectifiers arranged this way are called

A

Bridge rectifier

28
Q

Characterized the voltage waveform

A

Voltage ripple

29
Q

Characteristics of waveforms

A

Period
Frequency
Amplitude

30
Q

Length of time

A

Period

31
Q

Time for sine waves

A

Periodic time

32
Q

Time of square waves

A

Pulse width

33
Q

Number of waveform

A

Frequency

34
Q

Intensity of the signal

A

Amplitude

35
Q

Voltage waveforms are produced by

A

Single phase power

36
Q

It exist when the xrays are produce near the peak voltage

A

Pulsating xray beam

37
Q

Caused by the alternate in swing in voltage from 0 to maximum potential

A

Pulsating xray beam

38
Q

Xray produced with SPP has a value of near zero ate of little value because of lower energy

A

Pulsed Radiation

39
Q

Multiple voltage waveform are superimposed on one another resulting a nearly constant high voltage

A

Three-phase power

40
Q

It uses inverter circuits

A

High frequency voltage generator

41
Q

Converts DC into a series of square pulses

A

Inverter circuits

42
Q

Near constant potential voltage waveform improving image quality at lower patient radiation dose

A

High frequency generator

43
Q

Guidelines set by the manufacturer

A

Power rating