ARRT registry review covering equipment operations and QC
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| show | the heated cathode filament
pg 437
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| bremsstrahlung radiation | show 🗑
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| show | A high speed electron encounters a tungsten atom within the anode and ejects a K shell electron leaving a vacancy. An electron from the adjacent L shell moves in to fill the K shell vacancy causing a K characteristic ray to be emitted. Pg 438
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| show | high atomic number, high melting point (3410 degrees celsius) to resist cracking, thermal conductivity for heat dissipation pg 452
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| show | graphite/molybdenum beveled edge, tungsten/rhenium alloy focal track (0,6-1,2mm), molybdenum stem pg 452
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| show | rotates anode,
stator (outside glass envelope) and rotor (inside glass envelope)
pg 452
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| show | diode that has a negative electrode (cathode) and a positive electrode (anode) pg 453
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| thermionic emission | show 🗑
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| line focus principle | show 🗑
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| properties of x-ray photons | show 🗑
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| wavelength | show 🗑
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| show | refers to the number of cycles per second; unit of measurement is the hertz pg 439
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| show | electric current flowing through a conductor in only one direction and with constant magnitude pg 444
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| alternating current | show 🗑
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| show | change mechanical energy to electrical energy pg 444
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| motors | show 🗑
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| step-up transformer | show 🗑
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| autotransformer | show 🗑
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| show | decreases voltage pg 448
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| show | solid state diodes made of semi-conductive materials that permit the flow of electricity in only one direction pg 450
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| What is the focusing cup made of? | show 🗑
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| show | tungsten pg 451
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| show | materials that are a permanent part of the x-ray tube and housing, "built in" pg 456
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| show | thin sheets of aluminum that are added to make necessary total thickness of aluminum equivalent filtration (2.5mm) includes the collimator and mirror pg 456
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| show | used to define the size and shape of the x-ray field that emerges from the x-ray tube port window pg 456
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| show | used to protect the patient from unnecessary exposure, and the x-ray tube from damage should the AEC fail to operate properly pg 462
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| show | evaluates timer accuracy pg 462
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| primary/ low voltage circuit components | show 🗑
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| secondary/ high voltage circuit components | show 🗑
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| two types of AEC | show 🗑
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| pixel | show 🗑
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| bit | show 🗑
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| show | number of bits per pixel/ determines grayscale pg 466
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| show | number of pixels in XY direction making up a digital image pg 466
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| show | usually barium fluorohalide, granular or turbid shape pg 475
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| show | protective layer, barium fluorohalide layer, reflective layer base, antistatic layer, and lead foil pg 475
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