chapter 5 bushong
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the 3 main components of the imaging system? | show 🗑
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| what is the operating console used to control? | show 🗑
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| What type of transformers are in the high voltage generator? | show 🗑
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| what 4 functions does the operating console allow you to control? | show 🗑
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| why do electric circuits and meters connected to the console operate at low voltages? | show 🗑
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| show | 110v/440v
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| what does the line voltage compensator measure? | show 🗑
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| what does the line compensator adjust the voltage to? | show 🗑
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| what is known as the "orchestrator" in the console? | show 🗑
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| show | accepting, controlling and delivering low voltage power to the high voltage power to the high voltage/ step up transformer
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| what is usually the in put to the auto transformer? | show 🗑
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| show | usually controllable between 100-400v
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| on an autotransformer what is the primary connections responsible for? | show 🗑
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| what is the secondary connection of the autotransformer responsible for? | show 🗑
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| what type type of induction is the autotransformer? | show 🗑
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| what are taps on the autotransformer? | show 🗑
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| In autotransformer law what is the relation between voltage and turns ratio? | show 🗑
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| show | inversely proportional
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| show | major and minor
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| show | input to the high voltage transformer
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| show | secondary side
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| show | primary side
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| show | total voltage leaving the autotransformer before it reaches the high voltage transformer
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| What controls tube current from cathode to anode? | show 🗑
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| The number of electrons produced through thermionic emission is determined by? | show 🗑
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| what does filament current operate at? | show 🗑
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| if tube current works on 3-6 amperes what is the range in milliamperes? | show 🗑
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| where is the filament circuit located? | show 🗑
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| show | tube current
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| What is placed along the filament circuit in order to control current and create mA station? | show 🗑
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| show | filament transformer
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| show | step down
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| show | filament heating isolation step down transformer
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| Why are the secondary windings heavily insulated on the filament transformer? | show 🗑
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| show | primary are thin copper and secondary thick copper
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| what is the range that the primary windings on the filament transformer carry? | show 🗑
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| show | 5-8A and 12v
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| what does the mA meter monitor? | show 🗑
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| show | at the center of the secondary winding of the high voltage transformer in the x-ray tube circuit
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| show | on the secondary side of voltmeter and primary side of high voltage transformer
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| show | how long current runs through the filament
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| show | guard timer
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| show | synchronous timers
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| what type of timer allows for serial exposures? | show 🗑
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| what is designed to provide the highest safe tube current for the shortest time possible? | show 🗑
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| what side of the high voltage transformer is the mAs timer on? | show 🗑
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| A device that measures the quantity of radiation that reaches the IR and cuts off exposure when appropriate | show 🗑
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| show | between the patient and the IR
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| what type of timer is the AEC used in conjunction with? | show 🗑
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| back up timer should be set to _____x's the expected time | show 🗑
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| what type of image will you get in the timer for the AEC is too short? | show 🗑
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| show | it will add unnecessary dose to the patient and a dark image
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| show | Ionization chambers and photomultiplier tube
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| show | a small photocathode tube
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| what are the 3 primary parts of a high voltage generator? | show 🗑
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| what does a high voltage generator do to output voltage from the autotransformer? | show 🗑
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| show | for insulation and to conduct heat from the high voltage section
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| The turns ratio is usually between ____ or ______ for a high voltage transofrmer | show 🗑
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| what is voltage and current measured in on the primary side of the high voltage transformer? | show 🗑
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| what is voltage and current measured in on the secondary side of the high voltage transformer? | show 🗑
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| what type of current is required for the x-ray tube function appropriately? | show 🗑
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| show | to convert current from AC to DC
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| What are rectifiers? | show 🗑
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| What are diodes? | show 🗑
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| show | how little or how much voltage is produced
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| how many diodes does half wave rectification contain? | show 🗑
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| show | 60 x-ray pulses per second
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| show | at least 4 diodes in the high voltage circuit
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| how many pulses per second are produced by a full wave rectification? | show 🗑
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| what do the arrows in the diode indicate? | show 🗑
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| show | pulsating x-ray beam
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| what type of generator results in 6 pulses per 1/60 sec or 360 per second? | show 🗑
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| show | high frequency generator
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| what is the voltage ripple % for 1 phase? | show 🗑
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| what is the voltage ripple % for 3 phase and 6 pulse? | show 🗑
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| what is the voltage ripple % for 3 phase and 12 pulse? | show 🗑
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| what is the voltage ripple % for high frequency? | show 🗑
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| what is the disadvantage of low ripple? | show 🗑
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| show | less
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| What are two equations for power rating? | show 🗑
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| show | kW
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Created by:
lchadderton
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