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Fluoroscopy Radiation Protection and Safety(143 questions fully solved & updated
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Fluoroscopy Radiation Protection and Safety(143 questions fully solved & updated
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Fluoroscopy: RadiationProtection and
Safety(143 questions
fully solved & updated
Exposure to ionizing radiation comes from either_______ or _______
sources. - answer natural, artificial
Natural sources of radiation include exposure from the - answer 1.
earth's crust,
2. outer space,
3. building materials
4. naturally occurring radioactive materials in the body.
Artificial radiation sources include - answer 1. dental and medical
exposure (including diagnostic radiology, nuclear medicine and
radiation therapy),
2. fallout from nuclear weapons,
,3. nuclear power industry
4. occupational radiation exposure.
___________ and its decay products represent the largest contributors
of natural (background) radiation exposure, and medical procedures
deliver the largest amount of artificial radiation to the public. - answer
Radon
Radon gas forms from the radioactive breakdown of naturally occurring
_________ found in soil - answer radium
According to the Centers for Disease Control and Prevention (CDC),
radon is the _________ leading cause of lung cancer in the United
States after cigarette smoking. - answer second
Medical radiation comes from three sources: - answer 1. the treatment
of benign diseases,
2. diagnostic examinations
3. the treatment of malignant diseases.
Antoine Henri Becquerel discovered - answer radioactivity in 1896
Radioactivity is expressed using the - answer becquerel (Bq) (SI)
curie (Ci), non-SI unit.
, ionizing radiation - answer When atoms of molecules absorb x-ray
energy, electrons break away from their atomic orbits, creating charged
particles, or ions.
Radiation exposure units - answer 1. coulomb/ kilogram (C/kg)
2. roentgen (R).
The coulomb is a unit of - answer electrostatic charge
The roentgen is the unit of - answer ionization of atoms in air by gamma
rays or x-rays up to 3 megaelectron volts (MeV).
Absorbed dose is defined as - answer the energy imparted
to matter by ionizing radiation per unit mass of irradiated material
The measurement of absorbed dose is expressed in - answer 1. gray
(Gy), SI unit,
2. radiation (rad), non-SI
1 Gy = 100 rad - answer 1 rad = 0.01 Gy.
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