Radiation Protection Flashcards
The term rad means
Radiation absorbed dose
Which of the following have little penetrating power and are normally a hazard to health only in the form of internal radiation received through ingestion, inhalation, or open wounds?
Alpha particles
Beta radiation is most commonly blocked by which one of the following materials?
Glass or plastic
Microwaves are reflected by
Metals
The energy of ionizing radiation is measured in
Electron volts (eV)
The term “frequency” cannot be described as
Particles
The shorter the wavelength, the
The higher the frequency and energy
The roentgen is a measure of the ionization in air produced by exposure to
X-rays or gamma rays
The principles of shielding are represented by which three methods?
Time, distance, and shielding
The term “rem” is short for
Roentgen equivalent man
Measures of the health effect of low levels of ionizing radiation on the human body
Which term is used to show the exposure of large populations to low-level radiation?
Person-rem
The rate at which atoms of radioactive sources (radionuclides) disintegrate are measured in
Curies
Isotopes of the same element have
The same atomic number but different mass numbers
The half-layer
Is the width of a material required to reduce the air kerma of an x-ray or gamma ray to half its original value.
(Quality or intensity of the beam)
