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Exam (elaborations)

NBDHE Dental Radiology Questions and Answers

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  • Course
  • NBDHE
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  • NBDHE

Wilhelm Roentgen Ans- discovered the x-ray in 1895 he discovered x-rays while experimenting with a cathode ray tube ionization Ans- the production of ions (an atom that gains or loses an electron and becomes electrically unbalanced) ion pair Ans- when an electron is removed from an atom in ...

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  • August 2, 2024
  • 36
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NBDHE
  • NBDHE
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NBDHE Dental Radiology
Questions and Answers


Wilhelm Roentgen


Ans- discovered the x-ray in 1895


he discovered x-rays while experimenting with a cathode ray tube




ionization


Ans- the production of ions (an atom that gains or loses an electron and

becomes electrically unbalanced)




ion pair


Ans- when an electron is removed from an atom in the ionization process




1. the atom becomes the positive ion

,2. the ejected electron becomes the negative ion




ionizing radiation


Ans- radiation that is capable of producing ions by removing or adding an

electron to an atom; x-rays produce ionization


1. particulate radiation


2. electromagnetic radiation




particulate radiation


Ans- tiny particles of matter that possess mass and travel in straight lines at

high speeds




electrons


beta particles


cathode rays


protons


alpha particles

,neutrons




electromagnetic radiation


Ans- the propagation of wave-like energy (without mass, without particles)

through space or matter




cosmic rays


x-rays


microwaves, radio waves


gamma rays


ultraviolet rays


visible light




we want--short wavelength, high frequency




velocity


Ans- the speed of a wave

, wavelength


Ans- the distance between the crest of one wave to the crest of the next

wave




frequency


Ans- the number of wavelengths that pass a point in a certain amount of time




X-ray


Ans- electromagnetic ionizing radiation of VERY SHORT WAVELENGTH

resulting from the bombardment of tungsten by highly accelerated electrons in

a vaccum




properties of X-radiation


Ans- 1. x-rays have a wave form; xrays travel in waves with short wavelengths

and high frequency


2. x-rays travel at the speed of light (186,000 miles/second)


3. x-rays have the power to penetrate substances

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