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RAD 156 Imaging Sys
RAD 156 Imaging System
| Question | Answer |
|---|---|
| What are the 3 parts to a X-Ray Circuit | Primary, Secondary, Filament |
| What are the 3 main sections for X-Ray Imaging System | 1. Control Console & Low Voltage Section 2. High-Voltage Generator 3. X-Ray Tube |
| Control Panel receives power from what circuit? | Primary Circuit |
| tube current (mA), voltage (kV), and time (S) are controlled where? | Operating Console |
| The Main Power Supply supplies how many Hz? | 60 Hertz of alternating current (AC) |
| The X-Ray Filament receives modified power from which circuit? | Filament Circuit |
| The secondary Circuit gives modified power to what 2 sections ? | High-Voltage Generator |
| mA selector has various amounts of ________ in the ________ circuit? | resistance ; filament |
| What checks the incoming Line Voltage and Current because of variations in the power supply | Line Monitor |
| Corrects the Fluctuations or variations in power distributed to the X-Ray machine | Line Compensator |
| What protects from short circuits and shock hazards? | the Circuit Breaker |
| mA selector uses a type of _________ to control current | Rheostat |
| the x-ray system requires a constant ____ volts? | 220 |
| What adjusts the incoming voltage to a constant 220V | Line Compensator |
| Various incoming voltage is received here and adjusted to the appropriate level needed | Autotransformer |
| Vs/Vp = Ns/Np p=Primary ; s= Secondary | Transformer Law Equation |
| The PRIMARY (incoming) voltage is received and changed to the SECONDARY high voltage needed here | Autotransformer |
| Major kVp selector selects kVp by | 10's |
| The 1st component to receive power and A transformer controlled by kVp | Autotransformer |
| Minor kVp selector selects kVp by | 1-2's |
| This is a PRE-READING volt meter that is used to monitor the VOLTAGE in the line before the exposure | kVp Meter |
| What controls the mechanical or electrical device that starts and stops the high voltages of the x-ray circuit | Time Circuit |
| Which side the the Step Up Transformer receives voltage from the Autotransformer | The Primary Side |
| What monitors X-Ray tube current | mA meter |
| This convert low voltage supplied from the power supply into the high kilovoltage required to produce X-Rays | High Voltage Generator |
| The Step-Up Transformer, mA Meter and Rectifiers are all components of the : | Secondary Circuit |
| mA meter, rectifiers, and secondary circuit components are found in the house of the | High Voltage Generator |
| Step-Up transformer raise: | volts to kilovolts |
| this supplies power to the X-Ray tube; NOT the Filaments | High Voltage Generator |
| This increases voltage 500-1000 times (Secondary voltage = kV peak = kVp) | Step-Up transformer |
| X-Ray Tubes receive _____________ from primary and secondary circuits | Modified Power |
| Rectifiers allow current to flow in ___________ and act as an ________ when the current reverses. | one direction ; insulator |
| mA selector delivers ________ to the filament transformer | voltage |
| A variable resistor that varies the amount of resistance in the filament circuit | Rheostat |
| Diodes are also called | Rectifiers |
| the HIGHER the mA station number = | the LOWER the resistance |
| Step-Down Transformer is also called the: | Filament Transformer |
| The technologist has direct control over the Rheostat through the : | mA stations on the control panel |
| Works to concert the with the TIMER circuit | mA Selector |
| This changes AC to the X-Ray tube to DC | Rectifiers |
| The FOCAL SPOT SELECTOR has two focal spots | Small and Large |
| The step-down transformer decrease ______ and _______ amperage | voltage ; adjusts |
| Thin TUNGSTEN wires located on the Cathode side | Filaments |
| step-down transformer Primary Coil is equal to | 150 V and 1 A |
| step-down transformer Secondary Coil is equal to | 12V and 5-8 A |
| THERMIONIC EMISSION results: | when heated |
| The Filament operates at currents of | 3-6 A |
| This is associated with the secondary winding of the filament transformer | Focal Spot Selector |
| This receives properly modified CURRENT from the SECONDARY TRANSFORMER | Filaments |
| The Step-Down transformer responds to the : | mA meter |
| This Timer is mainly used in dental units, isn’t very accurate and inexpensive | Mechanical Timer |
| This timer must be reset after each exposure and times are in intervals of 60 | Synchronous timer |
| Three-Phase Generator has constant ______ and never drops to zero | Voltage |
| This is a special electronic timer | mAs timer |
| AEC measure the _______ of radiation reaching the IR | Quantity |
| Electric timers are the most _______, most complicated and most _________ | Expensive and accurate |
| Full-Wave Rectification uses how many diodes? | 4 |
| mAs Timers provide highest _____ tube current for the _______ exposure time | safe and shortest |
| What is used to manipulate waveforms? | Generators |
| What changes the AC current to pulsating DC current? | Rectifiers/Diodes |
| This controls Exposure time by terminating the exposure | Timer Circuit |
| This timer’s exposure is as short as .001 s with only 1 msec of delay | Electric Timer |
| INCONSISTANT power supply is common in which type of generator? | Single-Phase Generator |
| This uses a preset exposure time is set by dialing in or turning a knob that winds up a spring | Mechanical Timer |
| X-rays have low _________ and require _________ kVp with single-phase generators | Penetrability ; increased |
| what does the abbreviation AEC represent | Automatic Exposure Control |
| Three waves are formed slightly out of sync for constant high voltage by this generator | Three-Phase Generator |
| Where is the Timer Circuit located? | Low Voltage Side |
| Half-Wave Rectification uses how many diodes? | 2 |
| This timer is driven by a synchronous motor | Synchronous timer |
| The main advantage of using Full-Wave Rectification is: | Exposure time cut in half |
| The most efficient of all X-Ray generators is the | High frequency generator |
| Full wave rectified power is converted to higher frequency is created by this generator | High frequency generator |
| _____ quality and quantity of x-rays are produced by circuits with the ______ VOLTAGE RIPPLE. | Highest and lowest |
Created by:
drocco25
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