Chapter 10 Key Terms

Question 1

ALARA

Answer 1

as low as reasonably achievable

Question 2

Deterministic effects

Answer 2

results of radiation exposure for which a threshold dose of radiation is assumed (e.g., cataracts, sterility)

Question 3

Dose limits

Answer 3

radiation exposure limits that are pertinent to the protection of radiation workers

Question 4

Occasionally exposed workers

Answer 4

workers whose duties may occasionally bring them into areas where radiation exposure may occur

Question 5

Occupationally exposed workers

Answer 5

workers who have a significant potential for exposure to radiation in the course of their employment

Question 6

Primary barrier

Answer 6

a shielding structure that can be struck by the primary x-ray beam exiting the x-ray tube

Question 7

Protective device

Answer 7

items worn by the radiation worker to reduce exposure to radiation

Question 8

Radiation workers

Answer 8

an individual who, through occupational risk, has a certain likelihood of exposure to ionizing radiation in the course of his or her normal duties

Question 9

Secondary barrier

Answer 9

a shielding structure that can be struck by scattered and leakage radiation

Question 10

Stochastic effects

Answer 10

results of radiation exposure for which no threshold dose of radiation exists (e.g., cancer, genetic effects)

Question 11

Structural protective barrier

Answer 11

fixed x-ray facilities that are constructed of materials having effective x-ray attenuating properties and are of thickness sufficient to reduce exposures to desired levels