"The probability of the photoelectric effect rapidly approaches zero as the incident photon beam energy increases. Conversely, the interaction increases significantly with the atomic number (Z) of the atoms in the tissue. This creates a high degree of contrast between tissues of different densities, such as bone and soft tissue.The overall probability of photoelectric absorption can be summarised by the following relationship:"
"Consequently, if the atomic number (Z) of the attenuating medium doubles, photoelectric absorption increases by a factor of 8 (23=8). Conversely, if the energy (E) doubles, the probability of absorption reduces by a factor of 8. Therefore, even minor changes in Z or E can significantly affect photoelectric absorption."
"It was Philipp Eduard Anton von Lenard, awarded the Nobel Prize for Physics in 1905, among the first to carry out systematic studies of the photoelectric effect taking up and extending Herz's research (Lenard's trigger hypothesis): light only triggers the release of selected electrons; it doesn't add energy to them (1902) 8."
"It was Philipp Eduard Anton von Lenard, awarded the Nobel Prize for Physics in 1905, among the first to carry out systematic studies of the photoelectric effect taking up and extending Herz's research (Lenard's trigger hypothesis): light only triggers the release of selected electrons; it doesn't add energy to them (1902) 8."
"Compton effect"
Expected headings
"Probability of photoelectric effect"
"Applications"
"History and etymology"
"It was Philipp Eduard Anton von Lenard, awarded the Nobel Prize for Physics in 1905, among the first to carry out systematic studies of the photoelectric effect taking up and extending Herz's research (Lenard's trigger hypothesis): light only triggers the release of selected electrons; it doesn't add energy to them (1902) 8."