TEST BANK For Radiation Protection in
Medical Radiography | Exam Review with
Questions and Verified Answers | 100%
Correct | A+ Verified
• Three types of scatter -✓✓primary
scatter
leakage
• Define primary scatter emerges directly from the x ray tube collimator -
✓✓primary scatter
• Define leakage scatter does not emerge directly from the collimator opening,
penetrates though the x-ray tube housing walls -✓✓leakage scatter
• whenever a diagnostic x-ray beam passes through matter -✓✓scatter
• What is the most hazardous and most difficult to shield from -✓✓primary
• What are techs most likely to be exposed to -✓✓scatter
• When is leakage radiation on -✓✓only when the x-ray beam is one
• Leakage radiation must not exceed -✓✓1 mGy/hr at a distance of 1 m
1 mR/hr at a distance of 1 m
• What type of metal is used for the protective tube housing -✓✓lead
• What does the protective tube housing protect who from what -✓✓radiographers
and pt. from off focus or leakage radiation by restricting the emission of x-rays to
the primary beam
and electric shock
• Is scatter radiation strong or weak energy -✓✓weak energy
• What is a major source of scatter radiation -✓✓the patient
, • scatter interaction takes place with what shell electron -✓✓outer
• intensity of scatter 1 m from the patient is ______% of the intensity of the useful
beam at the patient -✓✓0.1%
• techs receive the least amount of radiation from what type of scatter -✓✓standing
at a right angle
• techs receive the most amount of radiation from what type of scatter -
✓✓backscatter
• most occupational dose comes from what 2 areas -✓✓fluoro and mobile
• what does ALARA stand for -✓✓As Low As Reasonably Achievable
• The probability of injury, illness, or death resulting from an activity that takes
place in the workplace -✓✓occupational risk
• what is an example of radiology occupational risk -✓✓cancer
• dose reduction methods -✓✓time, distance, shielding
• What are the cardinal principles -✓✓time, distance, shielding
• How does time hep us as techs -✓✓less time in high exposure areas
• How does distance help us as techs -✓✓standing at the greatest distance possible
from an energized beam
• How can shielding help us as techs -✓✓use protective apparel and stand behind
barriers
• what is the most effective principle -✓✓distance
• Define the inverse square law -✓✓the intensity of the beam is inversely
proportional to the distance square
Medical Radiography | Exam Review with
Questions and Verified Answers | 100%
Correct | A+ Verified
• Three types of scatter -✓✓primary
scatter
leakage
• Define primary scatter emerges directly from the x ray tube collimator -
✓✓primary scatter
• Define leakage scatter does not emerge directly from the collimator opening,
penetrates though the x-ray tube housing walls -✓✓leakage scatter
• whenever a diagnostic x-ray beam passes through matter -✓✓scatter
• What is the most hazardous and most difficult to shield from -✓✓primary
• What are techs most likely to be exposed to -✓✓scatter
• When is leakage radiation on -✓✓only when the x-ray beam is one
• Leakage radiation must not exceed -✓✓1 mGy/hr at a distance of 1 m
1 mR/hr at a distance of 1 m
• What type of metal is used for the protective tube housing -✓✓lead
• What does the protective tube housing protect who from what -✓✓radiographers
and pt. from off focus or leakage radiation by restricting the emission of x-rays to
the primary beam
and electric shock
• Is scatter radiation strong or weak energy -✓✓weak energy
• What is a major source of scatter radiation -✓✓the patient
, • scatter interaction takes place with what shell electron -✓✓outer
• intensity of scatter 1 m from the patient is ______% of the intensity of the useful
beam at the patient -✓✓0.1%
• techs receive the least amount of radiation from what type of scatter -✓✓standing
at a right angle
• techs receive the most amount of radiation from what type of scatter -
✓✓backscatter
• most occupational dose comes from what 2 areas -✓✓fluoro and mobile
• what does ALARA stand for -✓✓As Low As Reasonably Achievable
• The probability of injury, illness, or death resulting from an activity that takes
place in the workplace -✓✓occupational risk
• what is an example of radiology occupational risk -✓✓cancer
• dose reduction methods -✓✓time, distance, shielding
• What are the cardinal principles -✓✓time, distance, shielding
• How does time hep us as techs -✓✓less time in high exposure areas
• How does distance help us as techs -✓✓standing at the greatest distance possible
from an energized beam
• How can shielding help us as techs -✓✓use protective apparel and stand behind
barriers
• what is the most effective principle -✓✓distance
• Define the inverse square law -✓✓the intensity of the beam is inversely
proportional to the distance square
