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How would you find the milliroentgens per milliampere-seconds (mR/mAs)
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Example: If the exposure factor of 70kvp, 200Ms and 15ms yield an output exposure of 80 mR, what is the milliroentgens per milliampere-seconds (mR/mAs)
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465 image production

ARRT registry review covering image production

QuestionAnswer
How would you find the milliroentgens per milliampere-seconds (mR/mAs) mA x seconds milliroentgens/ mAs Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Example: If the exposure factor of 70kvp, 200Ms and 15ms yield an output exposure of 80 mR, what is the milliroentgens per milliampere-seconds (mR/mAs) 200x.015=3 80/3=27 Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
A short SID= more exposure true Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (465). University of Southern Indiana, Evansville, IN.
Does more mAs give you more or less exposure more Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Does more kVp give you more or less exposure more Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Where is the image intensifier located for flouro on top Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Where is the xray tube for flouro under the table Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
what is the xray table made from carbon fiber or polycarbonate--- radiolucent Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
what do electrostatic lenses do increase speed and focus of electrons Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
flouro is the greatest source of acute radiation exposure in diagnostic- most dose Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
input phosphor sizes and material 25,17,12 cm and cesium iodide Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
output phosphor size and material 1-2.5 cm and cadmium Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
how can you decrease magnification without mag mode button get ii as close to patient as possible Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
off center decrease in exposure over entire image Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
off level not straight behind the patient, decrease of exposure entire image Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
off focus outside of the SID range, light at outside/periphery of image Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
inverted/upside down no exposure on outside of the image Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
AEC is usually between the patient and the detector Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
backup timer AEC, is the safety mechanism to shut off exposure Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Problems with AEC selecting wrong photocells Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
which interactions are radiation production bremsstrahlung and characteristic Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Bremmstahlung continuous, most xray produced within tube Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Brem max kVp chosen is the most energy a brem can produce Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Brem electron heads toward nucleus then goes around slowly Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Brem inner 2/3 sticks in the pt while the other 1/3 is turned to xray Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Brem less than 1% turns to xray and the other turns to heat Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Brem the more change in direction is the more loss of energy Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
xrays are produced where focal tract of anode Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
electrons come from the filament of the cathode Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Brem incoming ELECTRONS slows around nucleus in the target atom Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Characteristic incoming ELECTRONS interact with inner shell electrons Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Characteristic 1 e comes in with same energy as inner shell electron knocks it out Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Characteristic 2 then xray is produced Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Characteristic 3 the next shell replaces the one that was booted out Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
Characteristic Discrete graph, want k shell to be ejected Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
transformer laws turns ratio, transformer voltage, transformer current Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
turns ratio ts/tp Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
transformer voltage ts/tp= vs/vp Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
transformer current ts/tp=Ip/Is Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
turns ratio less than 1 = step down Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
turns ratio more than = step up Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
three phase 6 pulse voltage ripple 13-14 Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
three phase 12 pulse voltage ripple 3-4 Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet(Unpublished course reference). University of Southern Indiana, Evansville, IN.
pulses 60 cycles of sinusoidal wavelength per 1 sec in US Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
pulses 120 pulses of energy per second in the US Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
tube cooling chart used for safety cold anode=cracking Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet(Unpublished course reference). University of Southern Indiana, Evansville, IN.
heat units single phase 1.00, 3 phase 6 pulse 1.35, 3 phase 12 pulse HF 1.45 Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
reciprocal resistance total R is < least R and is ~ 1/2 value of the least resistor Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
frequency and wavelength f increases, wavelength decreases Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet(Unpublished course reference). University of Southern Indiana, Evansville, IN.
frequency and energy f increases, energy increases Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
energy and wavelength energy increases, wavelength decreases Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
quality kvp, penetration power Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
quantity mA, intensity, amount, rate of exposure Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
primary xray coming out of the tube hitting patient Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
remnant exits patient toward receptor Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
fundamental properties electromagnetic radiation heterogenous (not all same energy level) Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
fundamental properties travel at speed of light high frequency and short wavelength Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
off center the central ray is not centered to the center of the grid Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet (Unpublished course reference). University of Southern Indiana, Evansville, IN.
fundamental properties polyenergetic travel in STRAIGHT LINE no electric charge or mAs Schmuck, H. (2020). RADT465 Unit 2: Image Production/Equipment Operation and Quality Assurance Worksheet(Unpublished course reference). University of Southern Indiana, Evansville, IN.
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