Test #2 Flashcards
Bremsstrahlung x-rays are produced by:
Slowing electrons
As kVp increases, the;
1. wavelength is shorter
2. wavelength is longer
3. more of the beam is in the higher energy range
1 and 3
What is the source of energy that results in characteristic photons?
Potential energy of the electron filling the vacancy
The attenuation of x-rays occurs:
Exponentially
Which tissue interaction is considered to be a complete absorption event?
photoelectric interaction
At a higher kVp level, the penetrating ability of the x-ray beam is increased. This means (more/fewer) different body tissues are penetrated.
More
___ refers to x-rays leaving the patient that did not interact with atoms
Transmission
The reduction in intensity of the x-ray beam after it passes through the patient
Attenuation
The kinetic energy of the projectile electron in an x-ray tube is about __% efficient in the production of x-rays
1
useful characteristic x-rays are produced in tungsten by ___ of a k-shell electron
removal
When the x-ray photon strikes an atom within the tissue being imaged and loses all of it’s energy to an inner shell electron of that atom, the photon is said to have been:
Absorbed
When the x-ray photon strikes an atom within the tissue being imaged and loses all of it’s energy to an inner shell electron of that atom, the photon is said to have undergone the ____ interaction
photoelectric
When the x-ray photon strikes an atom within the tissue being imaged, loses only part of it’s energy to an outer shell electron of that atom and changes it’s direction, the photon is said to have been:
scattered
When the x-ray photon strikes an atom within the tissue being imaged, loses only part of it’s energy to an outer shell electron of that atom and changes it’s direction, the photon is said to have undergone the ___ interaction
Compton
____ is not a tissue interaction.
A. Photoelectric
B. Compton
C. Bremsstrahlung
C
