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25 Cards in this Set
- Front
- Back
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Blood disorder resulting from bone marrow failure after exposure to ionizing radiation |
Aplastic anemia |
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The amount of energy transferred on average by incident radiation to an object per unit length of track, or passage, through the object |
Linear energy transfer |
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Allows units to be used interchangeably among all branches of science throughout the world |
SI |
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Blood disorder resulting in abnormal overproduction of white blood cells after exposure to ionizing radiation |
Leukemia |
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Kinetic energy released in a unit mass (kilogram) of air |
Air kerma |
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Biologic damage to the body caused by exposure to ionizing radiation |
Somatic damage |
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SI unit used to express D |
Gy |
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A measure of the amount of radiant energy that has been thrust into a portion of the patient's body surface |
Dose area product (DAP) |
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The photon, either x-ray or gamma ray, exposure that under standard conditions of pressure and temperature produces a total positive or negative ion charge of 2.58x10^-4 C/kg of dry air |
One R (traditional unit) |
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SI unit for the radiation quantity ColEfd |
Person-sievert |
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A dimensionless factor (a multiplier) that was chosen for radiation protection purposes to account for differences in biologic impact among various types of ionizing radiation |
W^R |
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Radiation exposure received by radiation workers in the course of exercising their professional responsibilities |
Occupational exposure |
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The product of D x W^R x W^T |
EfD |
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A partially evacuated pear shaped glass tube |
Crookes tube |
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Short wavelength, higher energy electromagnetic waves emitted by the nuclei of radioactive substances |
Gamma radiation |
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Unit used from 1900 to 1932 measure radiation exposure |
Skin erythema dose |
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Product of D x W^R |
EqD |
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Radiation dosimetry quantity that was defined by the nuclear Regulatory Commission to Monitor and control human exposure to ionizing radiation. It is a particularly useful dose monitor for occupational e expose personnel such as nuclear medicine technologist and Interventional radiologist, who are likely to receive possibly significant radiation exposure during the course of a year |
TEDE |
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SI unit of EqD |
Sv |
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The amount of energy per unit mass absorbed by an irradiated object |
D |
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Relates the ionization produced in a small cavity within an irradiated medium or object to the energy absorbed in that medium as a result of its radiation exposure |
Bragg-Gray theory |
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Fluorescent material that coated the paper used when X-rays were discovered |
Barium platinocyanide |
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What occurs when ionizing radiation strikes an object such as the human body |
Exposure |
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The total kinetic energy released in a unit mass of tissue |
Tissue kerma |
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The surface of the patient that is towards the X-ray tube. This is where the radiation dose to the patient is the highest |
Entrance skin surface |
