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RADIATION SAFETY EXAM 1 REVIEW QUESTIONS WITH COMPLETE ANSWERS
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RADIATION SAFETY EXAM 1 REVIEW QUESTIONS WITH COMPLETE ANSWERS
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RADIATION SAFETY EXAM 1 REVIEWQUESTIONS WITH COMPLETE
ANSWERS
The process of selective removal of lower energy photons, that add nothing to the
quality of the image, from the x-ray beam. - Answer-Filtration
This form of filtration is built into the design of the x-ray tube. - Answer-Inherent
This form of filtration is placed above the collimator shutters. - Answer-Added
Radiographic x-ray tubes, capable of generating 70 kVp or greater, must have a
minimum, total filtration of 2.5 mm Al/equivalent. True or false? - Answer-True
Which shields are usually more protective, Al/Eq. or Pb/Eq.? - Answer-Pb/Eq.
The restriction of the x-ray beam is one of the most effective means of reducing dose to
the patient. True or false? - Answer-True
In collimation, automatic shutters are called "PBL" shutters. What does "PBL" stand for?
- Answer-Positive Beam Limiting
The NCRP states that the minimum SID shall not be less than ___ inches. - Answer-12
The NCRP states that the minimum SID *SHOULD* be at least ___ inches for all
radiographic procedures. - Answer-15
The distance between the object (anatomy) and the image receptor is referred to as: -
Answer-OID
The distance between the x-ray source (x-ray tube) and the image receptor (IR) is
referred to as: - Answer-SID
The distance between the x-ray source and the skin of the patient is referred to as: -
Answer-SSD
The NCRP states that the SSD for general radiographic procedures should not be less
than ___ cm. - Answer-15
Ancillary devices designed to reduce the amount of scatter radiation or "fog" reaching
the image receptor. - Answer-Grids
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