Radiology ch 2

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Dental and medical x-rays account for what percentage of the overall total exposure of iodization radiation to individual United States

5%

What is the average amount of background radiation to individual in the United States

6.2 MSV/millisievert per year which is 620 Millirem per year

What term best describes the process of transferring extra energy to the Adams of the material through which the x-ray beam passes

Absorption

What term describes the smallest particle of an element that retains the properties of that element

Atom

Which of these terms is the unit used to measure radiation exposure

Columns per kilogram

List three sources of background radiation

Cosmic, terrestrial, radionuclides

Exposure

Coulombs per lilpgram / roentgen

Which of these subatomic particle's carries a negative electric charge

Electron

Radiation produced when high-speed electrons are stopped or slowed down by the tungsten Adams of a dental x-ray tube is called

General/BREMSSTRA HLng

Absorbed dose

Gray gy/ rad

Which of these forms of radiation is least capable of causing ionization of the body tissue cells

Infrared light

Five properties of xrays

Invisible, traveling straight lines, travel at the speed of light, no mass or wait, interact with matter causing ionization

Radiant energy sufficient to remove an electron from an orbital level of the Atom is called

Ionizing

What term describes the process by which unstable Atoms undergo decay in an effort to obtain nuclear stability

Radioactivity

The system international unit that is replaced the traditional unit REM is

Sievert

Dose equivalent

Sievert / rem

Which of the following is not a property shared by all the energies of electromagnetic spectrum

Travel any pulsating motion at the speed of sound

What is the distance between two similar points on two successive waves called

Wavelength

Which of these electromagnetic radiation's has the shortest wavelength

X-rays

Which of these forms of radiation has the greatest penetrating power

X-rays


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