Radiation Protection In Medical Radiography -
Radiation Protection : Questions With Complete
Solutions
Three types of scatter Correct Answer - primary
scatter
leakage
Define primary scatter emerges directly from the x ray tube collimator
Correct Answer - primary scatter
Define leakage scatter does not emerge directly from the collimator opening,
penetrates though the x-ray tube housing walls Correct Answer -
leakage scatter
whenever a diagnostic x-ray beam passes through matter Correct Answer
- scatter
What is the most hazardous and most difficult to shield from Correct
Answer - primary
What are techs most likely to be exposed to Correct Answer - scatter
When is leakage radiation on Correct Answer - only when the x-ray
beam is one
Leakage radiation must not exceed Correct Answer - 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 Correct
Answer - lead
, What does the protective tube housing protect who from what Correct
Answer - 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 Correct Answer - weak energy
What is a major source of scatter radiation Correct Answer - the patient
scatter interaction takes place with what shell electron Correct Answer -
outer
intensity of scatter 1 m from the patient is ______% of the intensity of the useful
beam at the patient Correct Answer - 0.1%
techs receive the least amount of radiation from what type of scatter
Correct Answer - standing at a right angle
techs receive the most amount of radiation from what type of scatter
Correct Answer - backscatter
most occupational dose comes from what 2 areas Correct Answer -
fluoro and mobile
what does ALARA stand for Correct Answer - As Low As Reasonably
Achievable
The probability of injury, illness, or death resulting from an activity that takes
place in the workplace Correct Answer - occupational risk
what is an example of radiology occupational risk Correct Answer -
cancer
dose reduction methods Correct Answer - time, distance, shielding
What are the cardinal principles Correct Answer - time, distance,
shielding
Radiation Protection : Questions With Complete
Solutions
Three types of scatter Correct Answer - primary
scatter
leakage
Define primary scatter emerges directly from the x ray tube collimator
Correct Answer - primary scatter
Define leakage scatter does not emerge directly from the collimator opening,
penetrates though the x-ray tube housing walls Correct Answer -
leakage scatter
whenever a diagnostic x-ray beam passes through matter Correct Answer
- scatter
What is the most hazardous and most difficult to shield from Correct
Answer - primary
What are techs most likely to be exposed to Correct Answer - scatter
When is leakage radiation on Correct Answer - only when the x-ray
beam is one
Leakage radiation must not exceed Correct Answer - 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 Correct
Answer - lead
, What does the protective tube housing protect who from what Correct
Answer - 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 Correct Answer - weak energy
What is a major source of scatter radiation Correct Answer - the patient
scatter interaction takes place with what shell electron Correct Answer -
outer
intensity of scatter 1 m from the patient is ______% of the intensity of the useful
beam at the patient Correct Answer - 0.1%
techs receive the least amount of radiation from what type of scatter
Correct Answer - standing at a right angle
techs receive the most amount of radiation from what type of scatter
Correct Answer - backscatter
most occupational dose comes from what 2 areas Correct Answer -
fluoro and mobile
what does ALARA stand for Correct Answer - As Low As Reasonably
Achievable
The probability of injury, illness, or death resulting from an activity that takes
place in the workplace Correct Answer - occupational risk
what is an example of radiology occupational risk Correct Answer -
cancer
dose reduction methods Correct Answer - time, distance, shielding
What are the cardinal principles Correct Answer - time, distance,
shielding
