CLUSTER 1

• The phosphor that roentgen used in early experiments with x-rays.

  Barium Platinocyanide
• which of the following is true concerning the discovery of ionizing radiation?

  1. It predicted by Mendeleev's Field theory
  2. Radioactivity was discovered within a year of Roentgen's discovery
  3. Roentgen's discovery occured in 1906
  4. The apparatus that Roentgen used was called

  2. Radioactivity was discovered within a year of roentgen's discovery
• During fluoroscopy what should the radiologic technology always do?

  wear protective apparel
• which of the following adequately describes the use of the rad?

  1. to measure the absorbed dose of the tissue
  2. to measure radiation exposure in air
  3. to measure the amount of radioactive material
  4. to measure the occupational exposure received by radiologic technologist

  to measure the absorbed dose of the tissue
• which of the following is not a unit of energy

  1. Calorie
  2. Electron Volt
  3. Rad
  4. Joule

  3. Rad
• when a force is exerted to push a mobile radiographic imaging system, the force would be expressed in what unit?

  Newton
• Heat is transferred from a glass-enclosed tray tube primarily by:

  Radiation
• Atoms with all electrons shells filled are

  chemically stable
• The atomic mass number of an atom is given by the number of?

  protons plus neutrons
• Isotopes are atoms


  of the same element
• The number of protons in the nucleus is called the:

  Atomic Number
• The difference between electron and beta particle is


  their origin
• Electromagnetic ionizing radiation:


  comes from both inside and outside of the nucleus
• X-rays have


  no mass and no charge
• when comparing electromagnetic radiation with particulate radiation it is the that 

  Both interact by ionization and excitation
• when considering the electromagnetic spectrum, photons of a radio broadcast have relatively:

  Iow energy and long wavelengths
• Electromagnetic radiation


  Exists only if its velocity is 3 x 108 m/s
• According to quantum mechanics, the energy of an x-ray is:

  Inversely proportional to its wavelength
• An Xray can also be correctly called a

  Photon
• which of the following are not affected by electrostatically charged matter

  X-ray