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24 Cards in this Set
- Front
- Back
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Absorbed dose |
The quantity of energy imparted by ionizing radiations to matter |
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Dose Equilivant |
The quantity obtained by multiplying the absorbed dose in tissue by the quality factor |
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Dosimeter |
A device used to measure radiation exposure on personnel |
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Dosimetry |
Various methods used to measure radiation exposure |
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Fluoroscopy |
A special radiographic diagnostic method in which a live view of the internal anatomy is possible |
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Genetic damage |
effects of radiation that occurs to the genes of reproductive cells |
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Gray (Gy) |
the unit of absorbed dose imparted by ionization radiations to matter |
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Hemopoietic |
anatomic areas where red blood cells are produced |
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Leukopoietic |
anatomic areas where the white blood cells are produced |
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Maximum permissible dose |
Maximum dose of radiation a person may recieve in a given time period |
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Pocket ionization chamber |
a method of dosimetry consisting of a charged ion chamber and electrometer which can be read immediately to determine the amount of exposure |
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Primary beam |
the path that x-rays follow as they leave the tube |
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Secondary radiation |
commonly called scatter radiation caused by interaction of the primary beam with objects in its path |
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Sievert |
dose of radiation equivalent to the absorbed dose in tissue |
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Somatic damage |
damage to the body induced by radiation that becomes manifest within the lifetime of the recipient |
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What is ALARA? |
as low as reasonably achievable |
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What are the primary concerns in terms of radiation damage to a Vet Tech? |
High doses latent effects over time |
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What is a radioisotope |
an isotope that emits radiation during disintergration or stabilization |
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What types of radiation might you be exposed to when working in an imaging place with nuclear scintigraphy or CT scans? |
X-rays Gamma rays |
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What are the three cardinal rules for radiation protection |
Time Shielding Distance |
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What is total exposure dependent upon? |
Exposure rate and time |
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According to the inverse square law, why does even a small increase in distance improve protection all the more? |
because the intensity of the beam is 1/Dsquared |
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What are the types of shields that can be worn? |
lead apron, gloves, glasses, thyroid shield |
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What are the two primary types of dosimeters |
TLD film badges |
