test

Cards (46)

  • What happens to binding energy as the size of the atom increases?
    It increases due to larger positive charge
  • Why do outer shell electrons require less energy to be freed?
    They are further from the nucleus
  • What are the two types of electron interactions in X-ray production?
    • Elastic scattering
    • Inelastic scattering
  • What is conserved during elastic scattering?
    Kinetic energy
  • What happens to energy during inelastic scattering?
    Some energy is lost to target material
  • What is produced during inelastic interactions?
    X-ray photon
  • What occurs when an incoming electron ionizes an atom?
    An electron leaves its shell and the atom
  • What is a delta ray?
    The ejected electron from ionization
  • What happens after an electron fills a vacancy in an atom's shell?
    It emits a photon of characteristic radiation
  • What two types of radiation are involved in X-ray production?
    Characteristic radiation and Bremsstrahlung
  • What is characteristic radiation specific to?
    Each individual atom
  • What does Bremsstrahlung radiation depend on?
    Interactions with the target atom
  • What percentage of an X-ray beam is typically Bremsstrahlung?
    90%
  • What is the required kVp for characteristic radiation production?
    70 kVp or higher
  • What is the relationship between atomic number and Bremsstrahlung interaction probability?
    Higher atomic number increases interaction probability
  • How does energy affect the likelihood of Bremsstrahlung interactions?
    Higher energy increases chance of interaction
  • What is the significance of the electron volt in relation to binding energy?
    It measures energy required to raise an electron
  • How do electrons fill their shells in an atom?
    From inner to outer shell
  • What is the binding energy of an electron?
    Energy required to hold it in its shell
  • Which atom requires more energy to remove a k-shell electron?
    Atom with a large nucleus
  • What is the relationship between binding energy and the kVp applied?
    Binding energy links to the kVp applied
  • What is the role of the ejected electron in ionization?
    It can cause further excitations/ionizations
  • What happens to the energy of an electron after it fills a vacancy in a lower energy level?
    It emits excess energy as a photon
  • What is the significance of the spikes on the graph for characteristic radiation?
    They indicate binding energy of released electrons
  • What type of spectrum is produced by Bremsstrahlung radiation?
    A continuous spectrum
  • What is the effect of increasing kV and tube current on heat production?
    Heat production increases
  • What is the probability of interaction in Bremsstrahlung proportional to?
    Proportional to Z x E2^2
  • What was the first medical application of X-rays?
    Treating skin cancer
  • What is the significance of the electromagnetic spectrum in relation to X-rays?
    Only X-rays and gamma rays can ionize
  • What is the role of the kVp in X-ray production?
    It determines the energy of the X-rays
  • What is the effect of increasing atomic number on Bremsstrahlung interactions?
    It increases the likelihood of interactions
  • What is the relationship between energy and the type of radiation produced?
    Higher energy produces more Bremsstrahlung
  • What is the significance of the continuous spectrum in Bremsstrahlung radiation?
    It shows a range of photon energies
  • What is the effect of increasing kV on the X-ray beam composition?
    It increases Bremsstrahlung production
  • What is the relationship between tube current and heat production?
    Higher tube current increases heat production
  • What is the significance of the spikes in the characteristic radiation graph?
    They indicate specific binding energies
  • What is the role of the incoming electron in X-ray production?
    It interacts with target atoms to produce radiation
  • What is the significance of the energy range in Bremsstrahlung radiation?
    It depends on the interactions with the target
  • What is the effect of increasing energy on the probability of Bremsstrahlung interactions?
    It increases the probability of interactions
  • What is the relationship between the size of the nucleus and Bremsstrahlung interactions?
    Larger nuclei increase interaction likelihood