ARRT Radiography Exam (Mosby
Review)With A Guaranteed A+
Ionizing Radiation - Answer radiation that is able to remove electrons from an atom
through ionization
Somatic effects - Answer refers to the effects of radiation to the body being irradiated
Genetic Effects - Answer refers to effects of radiation to a germ cell's genetic code;
effects the next generation
Primary radiation - Answer radiation exiting the x-ray tube
Remnant radiation (or Exit Radiation) - Answer x-rays the leave the patient and strike
the image receptor
attenuation - Answer absorption and scatter of the x-ray beam as it passes through
the patient
heterogenous beam - Answer x-ray beam that has photons of many different
energies
photoelectric effect - Answer absorption of x-ray photons in the body
compton effect - Answer scatter of x-ray photons in the body
air kerma - Answer unit of exposure
gray - Answer unit of absorbed dose
gray(a) - Answer unit of radiation absorbed in air
gray(t) - Answer unit of radiation absorbed in tissue
sievert - Answer unit of effective dose or unit of equivalent dose
becquerel - Answer unit of activity
uncontrolled area - Answer general public area, like waiting room or stairways
controlled area - Answer occupied by people trained in radiation safety and wear
radiation badges/monitors
x-ray tube leakage may not exceed what? - Answer 1mGy(a) per hour at a distance
of 1 meter from the housing
minimum lead equivalent for fluoro curtain - Answer 0.25mm
minimum lead equivalent for bucky slot shield - Answer 0.25mm
, ARRT Radiography Exam (Mosby
Review)With A Guaranteed A+
NAS or NRC-BEIR - Answer National Academy of Sciences/National Research
Counsel on the Biological Effects of Ionizing Radiation
studies biologic effects of ionizing radiation and publishes the data
NCRP - Answer National Counsel on Radiation Protection
publishes radiation protection guidelines for the US
NRC - Answer Nuclear Regulatory Commission
enforces radiation protection standards at the federal level
NCRP Report #102 - Answer makes recommendations on equipment design and
protection regarding lead shielding and fluoro and mobile exposure rates
NCRP Report #116 - Answer makes recommendations pertaining to risk-benefit
analysis of radiation exposure; states genetic and somatic effects need to be kept to
a minimum; makes annual dose limits
NCRP #160 - Answer addresses radiation exposure from all sources to people in the
US
effective dose limit - Answer upper boundary dose that can be absorbed (either in a
single exposure or annually) with negligible risk of genetic or somatic effects to the
individual
cumulative effective dose - Answer lifetime occupational exposure must not exceed
radiographer's age x 10 mSv
equivalent dose - Answer equal to the absorbed dose multiplied by the radiation
weighting factor
equivalent dose limit - Answer upper boundary dose that can be absorbed (either in
a single exposure or annually) with negligible risk of deterministic effect
Dose Area Product (DAP) - Answer total air kerma striking the patient
probabilistic effects (stochastic) - Answer randomly occurring effects of radiation;
probability is proportional to the dose (increased dose = increased probability)
Deterministic Effects - Answer radiation effects that become more severe at higher
levels of radiation exposure; do not occur below a certain threshold
GSD (Genetically Significant Dose) - Answer average annual gonadal dose of
radiation to individuals of childbearing age; addresses the relationship of gonadal
doses to individuals versus an entire population and the overall effects
Review)With A Guaranteed A+
Ionizing Radiation - Answer radiation that is able to remove electrons from an atom
through ionization
Somatic effects - Answer refers to the effects of radiation to the body being irradiated
Genetic Effects - Answer refers to effects of radiation to a germ cell's genetic code;
effects the next generation
Primary radiation - Answer radiation exiting the x-ray tube
Remnant radiation (or Exit Radiation) - Answer x-rays the leave the patient and strike
the image receptor
attenuation - Answer absorption and scatter of the x-ray beam as it passes through
the patient
heterogenous beam - Answer x-ray beam that has photons of many different
energies
photoelectric effect - Answer absorption of x-ray photons in the body
compton effect - Answer scatter of x-ray photons in the body
air kerma - Answer unit of exposure
gray - Answer unit of absorbed dose
gray(a) - Answer unit of radiation absorbed in air
gray(t) - Answer unit of radiation absorbed in tissue
sievert - Answer unit of effective dose or unit of equivalent dose
becquerel - Answer unit of activity
uncontrolled area - Answer general public area, like waiting room or stairways
controlled area - Answer occupied by people trained in radiation safety and wear
radiation badges/monitors
x-ray tube leakage may not exceed what? - Answer 1mGy(a) per hour at a distance
of 1 meter from the housing
minimum lead equivalent for fluoro curtain - Answer 0.25mm
minimum lead equivalent for bucky slot shield - Answer 0.25mm
, ARRT Radiography Exam (Mosby
Review)With A Guaranteed A+
NAS or NRC-BEIR - Answer National Academy of Sciences/National Research
Counsel on the Biological Effects of Ionizing Radiation
studies biologic effects of ionizing radiation and publishes the data
NCRP - Answer National Counsel on Radiation Protection
publishes radiation protection guidelines for the US
NRC - Answer Nuclear Regulatory Commission
enforces radiation protection standards at the federal level
NCRP Report #102 - Answer makes recommendations on equipment design and
protection regarding lead shielding and fluoro and mobile exposure rates
NCRP Report #116 - Answer makes recommendations pertaining to risk-benefit
analysis of radiation exposure; states genetic and somatic effects need to be kept to
a minimum; makes annual dose limits
NCRP #160 - Answer addresses radiation exposure from all sources to people in the
US
effective dose limit - Answer upper boundary dose that can be absorbed (either in a
single exposure or annually) with negligible risk of genetic or somatic effects to the
individual
cumulative effective dose - Answer lifetime occupational exposure must not exceed
radiographer's age x 10 mSv
equivalent dose - Answer equal to the absorbed dose multiplied by the radiation
weighting factor
equivalent dose limit - Answer upper boundary dose that can be absorbed (either in
a single exposure or annually) with negligible risk of deterministic effect
Dose Area Product (DAP) - Answer total air kerma striking the patient
probabilistic effects (stochastic) - Answer randomly occurring effects of radiation;
probability is proportional to the dose (increased dose = increased probability)
Deterministic Effects - Answer radiation effects that become more severe at higher
levels of radiation exposure; do not occur below a certain threshold
GSD (Genetically Significant Dose) - Answer average annual gonadal dose of
radiation to individuals of childbearing age; addresses the relationship of gonadal
doses to individuals versus an entire population and the overall effects
