Radiologic Science for Technologists: Physics, Biology, and Protection 1

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McCrae
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293685
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Radiologic Science for Technologists: Physics, Biology, and Protection 1
Updated:
2015-01-23 22:32:57
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Radiologic Science Technologists Physics Biology Protection
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Radiologic Science for Technologists: Physics, Biology, and Protection 1
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  1. The orbital electron and the atom from which it was separated are called an _____
    ion pair.
  2. 3 forms of electromagnetic radiation with sufficient energy to ionize ARE
    • X-rays,
    • gamma rays,   
    • ultraviolet lightly
  3. 2 Examples of particle-type ionizing radiation are ___
    alpha and beta
  4. What percentage of our annual average radiation dose is attributable to medical imaging?
    51%
  5. X-ray currents are measured in _____
    milliampere (mA)
  6. Examinations conducted with radiographic intensifying screens reduce exposure of the patient to x-rays by more than _____%
    95%
  7. Atoms that have the same number of protons but differ in the number of neutrons are ____
    isotopes;
  8. The strength of attachment of an electron to the nucleus is called the _________
    electron binding energy,
  9. ______ of a given element contain the same number of protons but varying numbers of neutrons
    Isotopes
  10. Atomic nuclei that have the same atomic mass number but different atomic numbers are ____
    isobars.
  11. Atoms of various elements may combine to form structures called ______
    molecules.
  12. Chemical union between atoms formed by sharing one or more pairs of electrons are called ___
    Covalent bond
  13. The smallest particle of an element is an ___;
    Atom
  14. the smallest particle of a compound is a ___.
    molecule
  15. X-rays and gamma rays are often called
    photons
  16. A ____ is the smallest quantity of any type of electromagnetic energy,
    photon
  17. _____ is one-half the range from crest to valley over which the sine wave varies.
    Amplitude
  18. The ____ is the distance from one sine wave crest to another
    wavelength
  19. Structures that absorb x-rays are called ____.
    radiopaque
  20. Structures that transmit x-rays are called ____
    radiolucent
  21. The energy of a photon is directly proportional to its____.
    frequency
  22. The electron has one unit of _____ charge; the proton has one unit of _____ charge.
    • negative
    • Positive
  23. _______ law: The electrostatic force is directly proportional to the product of the electrostatic charges and inversely proportional to the square of the distance between them.
    Coulomb's
  24. In a ____ circuit, all circuit elements are connected in a line along the same conductor.
    series
  25. A _____ circuit contains elements that are connected at their ends rather than lying in a line along a conductor.
    parallel
  26. Electrons that flow in only one direction constitute______
    Direct Current DC;
  27. electrons that flow alternately in opposite directions constitute _______
    Altering Current AC.
  28. What transforms electric potential and current into higher or lower intensity.
    Transformer
  29. The electronic device that allows current flow in only one direction is a _____
    rectifier
  30. The cathode is the ______side of the x-ray tube;
    negative
  31. The Cathode has two primary parts, a ____and a ________.
    • filament
    • focusing cup

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