Physics of Radiography• Structure of an atom• Wave theory• Quantum theory of electromagnetic radiation• Physical properties of X-rays• X-ray spectra (continuous and emission line)• X-ray tube• Types of X-ray tube and power supplies• Compton scattering• Absorption process – matter & materials• Dosimetry
Physics of Radiography• Structure of an atom
Properties of sub-atomic particles Structure of atom Energy levels Electron configuration
Physics of Radiography• Wave theory
Wave terminology Wave equation to calculate frequency and
wavelength
Physics of Radiography• Quantum theory of electromagnetic radiation
Quantisation of energy The photon Wave particle duality
Physics of Radiography• Physical properties of X-rays
X-ray photon energies Frequency & wavelength of X-rays
Physics of Radiography• X-ray spectra (continuous and emission line)
Electronic transitions Line and continuous spectra Effect on spectra of varying accelerating voltage Maximum photon energy
Physics of Radiography• X-ray tube
Diagram of the x-ray tube Calculate electron kinetic energy (J) Convert J to eV
Physics of Radiography• Types of X-ray tube and power supplies
Power supply for electron tube High anode-cathode voltage Effect of high cathode current
Physics of Radiography• Compton scattering
Simple scattering Compton scattering Photoelectric effect Pair production
Physics of Radiography• Absorption process – matter & materials
Material thickness Different materials Attenuation Photographic image Image quality Image intensifiers
Physics of Radiography• Dosimetry
Absorbed dose, dose equivalent, effective dose Units ALARA principle
