RTE 2563 EXAM 1 QUESTIONS WITH VERIFIED
ANSWERS
What is Radiation protection? - Answers - effective measures employed by radiation
workers to safeguard patients, personnel, and the general public from unnecessary
exposure to ionizing radiation
What is unnecessary radiation? - Answers - Any radiation exposure that does not
benefit a person in terms of diagnostic information obtained for the clinical management
of medical needs.
What are the three unit systems used to quantify radiation exposure? - Answers -
Exposure, Absorbed Dose, Effective Dose
What is Exposure? - Answers - The amount of ionization produced in air when ionizing
radiation is present.
What is Exposure measured in? - Answers - Coulombs per kilogram or Milliroentgens
What is Absorbed Dose? - Answers - The amount of energy that is deposited in a
material per unit mass of the material.
What is Absorbed Dose measured in? - Answers - Rad or Milligray (Grays)
What is Effective Dose? - Answers - Takes into account the amount of absorbed dose
that is received by a human, the exact type of radiation, and the specific organs or
organ systems irradiated. Effective dose is intended to be the best overall measure of
the biologic effects of ionizing radiation.
What is Effective Dose measured in? - Answers - Rem or Millisievert (Sievert)
What are Biologic effects? - Answers - damage to living tissue of animals and humans
exposed to radiation
ALARA is synonymous with what other term? - Answers - Optimization for radiation
protection (ORP)
What are the three basic principles of radiation protection? - Answers - Time, Shielding,
Distance
What does BERT stand for? - Answers - Background Equivalent Radiation Time
ANSWERS
What is Radiation protection? - Answers - effective measures employed by radiation
workers to safeguard patients, personnel, and the general public from unnecessary
exposure to ionizing radiation
What is unnecessary radiation? - Answers - Any radiation exposure that does not
benefit a person in terms of diagnostic information obtained for the clinical management
of medical needs.
What are the three unit systems used to quantify radiation exposure? - Answers -
Exposure, Absorbed Dose, Effective Dose
What is Exposure? - Answers - The amount of ionization produced in air when ionizing
radiation is present.
What is Exposure measured in? - Answers - Coulombs per kilogram or Milliroentgens
What is Absorbed Dose? - Answers - The amount of energy that is deposited in a
material per unit mass of the material.
What is Absorbed Dose measured in? - Answers - Rad or Milligray (Grays)
What is Effective Dose? - Answers - Takes into account the amount of absorbed dose
that is received by a human, the exact type of radiation, and the specific organs or
organ systems irradiated. Effective dose is intended to be the best overall measure of
the biologic effects of ionizing radiation.
What is Effective Dose measured in? - Answers - Rem or Millisievert (Sievert)
What are Biologic effects? - Answers - damage to living tissue of animals and humans
exposed to radiation
ALARA is synonymous with what other term? - Answers - Optimization for radiation
protection (ORP)
What are the three basic principles of radiation protection? - Answers - Time, Shielding,
Distance
What does BERT stand for? - Answers - Background Equivalent Radiation Time
