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25 Cards in this Set
- Front
- Back
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Collimators |
Can be round or rectangular |
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Ionization |
Can cause critical damage to large molecules |
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as low as reasonably achievable |
Alara concept means |
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white blood cells |
These cells are the most sensitive to damage from radiation |
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Penumbra |
Partial shadow around the objects of interest |
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Aluminum filters |
__________are required to remove long-wavelength X rays from the beamm |
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The first trimester |
Fetus is Lolo ceptable to the damaging effects of radiation in _________ |
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Oral health care team |
Who should embrace ALARA for all patients |
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Acute radiation syndrome |
________may cause arrhythmia redness of skin nausea vomiting diarrhea hemorrhage and hair loss |
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F speed film |
This film speed requires the least amount of radiation and still can produce a quality image |
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Control Panel extension arm and tube head |
What three components make up the x ray machine |
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photons |
Most dental x-ray ________ pass through the cell, causing no damage. They may collide with important sale chemicals and break them apart |
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Pointed close in plastic cone |
this type of position indicating device is no longer used in the dental office |
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2.5 per 1,000,000 examinations |
The potential risk of a full mouth dental x-ray examination inducing cancer in a patient has been estimated to be |
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Scattered radiation |
Subject contrast is affected by |
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MA (milliamperage) |
To get the biggest increase in the quantity of electrons available increase the _________ |
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Radiosensitive |
According to the law of B & T, cells with a high reproductive rate are described as_______ |
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0.25 mm |
A lead apron is a protective barrier against scattered radiation. It must be made of _____ lead or lead-equivalent materials. |
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Birth abnormalities, stunting of growth, and mental retardation |
High doses of radiation may cause what type of embryological defect. Name three |
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distortion |
what will result when an object and film are not parallel |
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tube head |
It prevents overheating of the x-ray tube by providing a space filled with oil, gas, or air to absorb heat created during the production of x-rays |
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Would kill 50 percent of a species within a 30 day period |
A lethal dose (LD) of LD 50/30 refers to the amount of radiation |
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federal, state, and local |
regulations concerning radiation safety measures are made by what type legistation |
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Latent period |
Following the initial radiation exposure, and before the first detectable effect occurs, and time lag called _______ occurs |
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Intensity is one fourth as great |
Based on the inverse square law what happens to the intensity of the x-ray beam when the target film distance is doubled |
