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RTE 1000 FINAL REVIEW HW 2 Questions & answers
RTE 1000 FINAL REVIEW HW 2 Questions & answers
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RTE 1000 FINAL REVIEW HW 2List four requirements that are needed for an x-ray production - ANS-1. Vacuum -
Glass/metal envelope 2. Source of Electrons - Filament of cathode 3. Target - Electrons
to strike anode 4. High voltage - To accelerate electrons toward object
Describe primary, scatter and remnant radiation - ANS-1. Primary radiation - exist x-ray
tube via two port directed toward patient
2. Scatter radiation - Emitted in all directions from the patient
3. Remnant radiation - Compose of scatter and transmitted primary radiation directed
toward image receptor
300 mA x 0.1ms
150 mA x 0.2ms
500 mA x 0.04ms
600 mA x 0.05ms
Which one does not belong? Why? - ANS-500 mA x 0.04ms Does not belong because it
equals 20 mAs While all the other ones equal to 30 mAs
The process by which a beam of x-ray photons is altered as a pass through matter is
known as - ANS-Attenuation
At 40" SID, The exposure in the air is 120R. What would the exposure in the air if SID
Was increased to 72" - ANS-120R x 40^^2 = 37R
The unit used to measure the amount of exposure in the air is the (Traditional and SI
units) - ANS-Roentgen/ C/Kg
The component of the X ray tube that controls the size and shape of the X ray exposure
field is the - ANS-Collimator
The correct combination of exposure factors necessary to yield a total of 24 mAs Using
the shortest exposure time to minimize patient motion is?
A. 400 ; 0.06s
B. 500 ; 0.048s
C.250 ; 0.096s
D. 50 ; 0.48s - ANS-B. 500mA x 0.048s
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