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19 Cards in this Set
- Front
- Back
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Matter
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occupies space & has mass
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Mass
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quanity of matter- constant in the universe- can be transformed into energy
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Weight
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mass of object in gravity. NOT CONSTANT. Kilogram
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Energy
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the ability to DO WORK. Joules
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Ionizing RAD
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addition or removal of an electon
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Speed of Light C=
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3 x 10^8 m/s
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Energy Forms (examples)
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Kinetic,thermal, chemical, potienial, electromagnetic
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Natural Sources of RAD
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Cosmic, terestrial, internal
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RAD dose measured in...
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millirads or gray
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X ray discovery.. who & when?
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Wilhelm Conrad Roentgen 1895
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Types of X rays
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Radiographic (no motion)
Fluoroscopic (motion) |
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Fluoroscope Discovery..who & when?
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Thomas Edison 1898
3 years after X ray discovery |
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3 principle rules of RAD
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time,distance,shielding
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Erythema
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skin damage-red skin
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Alopecia
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loss of hair
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Anemia
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low RBC count
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ALARA
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As Low As Reasonably Achieveable
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Collimination
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limits size of xray rad
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Filtration
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filters bad rad/ low energy
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