arrt review
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| According to the NCRP the monthly gestational dose-equivalent limit for embryo/fetus of a pregnant radiographer is | 5mSv
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| Which of the following is/are used to account for the differences in tissue characteristics when determining effective dose to biologic material? tissue weighting factors, radiation weighting factors, absorbed does | tissue weighting factors
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| What is the annual occupational whole-body dose equivalent limit regulated by the NCRP? | 50mSv
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| what are sources of secondary radiation? background, leakage, scatter | leakage and scatter
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| How does filtration affect the primary beam? | increases the average energy
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| What is the minimum lead requirement for lead aprons by the NCRP? | 0.50 mm of lead
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| OSL dosimeter contains what detector? | Aluminum Oxide
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| What is the unit for radiation to biologic material? | rem or Sv
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| hair loss is termed | epliation
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| NCRP regulation says leakage radiation from the x-ray tube shouldn't exceed more than | 100mR/h
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| When atomic mass of the same element are different it is called | isotope
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| diagnostic x rays are described as | low energy, low LET
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| promary radiation barriers are required to be how thick? | 1/16 in lead
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| What dose response curve is represented by a direct relationship and starts at 0,0? | linear, nonthreshold
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| What is the equation to determine x ray intensity? | I(1)/I(2)=D(2)^2/D(1)^2
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| Aluminum filtration has its greatest effect on | low-energy x ray photons
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| Occupational exposure unit of measure is | rem or Sv
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| The SSD in mobile fluoroscopy must be | 15 in max
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| The automatic exposure device that is located immediately under the x ray table is the | photomultiplier
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| What kind of dose-reponse curve represent possible genetic effects | linear, nonthreshold
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| What personnel monitoring device is the most sensitive and accurate? | OSL dosimeter
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| List the 3 classifications of ARS | central nervous system, gastrointestinal, and hematologic
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| In the production of characteristic radiation at the tungsten target, the incident electron | ejects an inner-shell electron
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| What is the most radiosensitive part of the GI tract? | small bowel
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| What is the unit of measurement for exposure in the air? | Roentgen (C/kg)
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