Lespin Practice

Absorption

(select the letter that matches)

• B. Effective atomic number of compact bone

• D. The product of electron tube currently and the amount of time in seconds that the x-ray tube is activated

• 
  G. Transference of electromagnetic energy from the x-rays to the atoms of the patient's biologic tissue

• H. By product of photoelectric interaction

Permanent inherent filtration

• 
  O. Combination of the x-ray tube glass wall and the added aluminum placed within the collimator

• K. Interaction between as x-ray photon and an inner-shell electron of an atom

• N. Positively charged electron

• Q. A composite Z value by weight for a material that is composed of multiple chemical elements

Photoelectric absorption

• O. Combination of the x-ray tube glass wall and the added aluminum placed within the collimator

• E. Effective atomic number of soft tissue

• K. Interaction between as x-ray photon and an inner-shell electron of an atom

• L. Metal that hardens the x-ray bean by removing low-energy components that would service to only increase patient dose

Fluorescent yield

• A. Process decreasing the intensity of the primary photon beam directed toward a particular destination

• F. Mental alloys of which the anode of an x-ray tube can be made

• N. Positively charged electron

• P. Refers to the number of x-rays emitted per inner-shell vacancy

mAs

• D. The product of electron tube currently and the amount of time in seconds that the x-ray tube is activated

• S. Interaction in which the energy of the incoming photon is transformed into two new particles, a negatron and a positron

• P. Refers to the number of x-rays emitted per inner-shell vacancy

• J. Proton-neutron combination

kVp

• H. By product of photoelectric interaction

• M. The highest energy level of photons in the x-ray beams, equal to the highest voltage established across the x-ray tube

• F. Metal alloys of which the anode of an x-ray tube can be made

• R. A type of digital device that can convert the spatial pattern of the photons that emerge from the patient into electrical signal values that can be stored in a computer and displayed as an image

Deuteron

• E. Effective atomic number of soft tissue

• I. Additional undesirable exposure on a completed radiographic image that can be caused by scattered radiation

• N. Positively charged electron

• J. Proton-neutron combination

Compton scattering

• G. Transference of electromagnetic energy from the x-rays to the atoms of the patient's biologic tissue

• P. Refers to the number of x-rays emitted per inner-shell vacancy

• 
  C. Interaction of an x-ray photon with a loosely bound outer-shell electron of an atom

• S. Interaction in which the energy of the incoming photon is transformed into two new particles, a negatron and positron

Effective atomic number (Zeff)

• U. Mathematic expression of Albert Einstein's famous concept of mass-energy equivalence

• 
  Q. A composite Z value by weight for a material that is composed of multiple chemical elements

• T. Radiation in the form of two oppositely moving 0.511-MeV photons generated as the result of mutual annihilation of mater and antimatter

• N. Positively charged electron

Aluminum

• 
  L. Metal that hardens the x-ray bean by removing low-energy components that would service to only increase patient dose

• V. The amount of energy absorbed by the patient per unit mass

• X. Agents that result in areas of increased brightness on a radiographic image

• H. By product of photoelectric interaction