X-ray Interaction with matter

-Attenuation; a reduction in the intensity of a beam of x-radiation as it passes through a medium due to dousing or to dissipateor to both. -Absorption; the transfer of energy from the roentgenogram topographic point to the medium through which it passes. -Scattering; a metamorphose in the direction of a photon due to fundamental interaction with the medium, this can pass off with or without the loss of energy from the photon. -4 types of roentgenogram interaction withn issuance occur; rayleigh circularize, Compton scatter, photoelectric absorptoion and pair production. The first 3 work out a role in diagnostic radiography. Rayleigh break up; occurs when the roentgen ray photon interacts with the full-length atom so that the photon is scattered with no change in internal energy to the scattering atom, nor to the x-ray photon. Rayleigh scattering is neer much than a minor contributor to the absorption coefficient. The scattering occurs without the loss of energy . Scattering is mainly in the before direction. Compton scatter; If an x-ray photon has an energy in truth(prenominal) much greater than the ionization energy of the electron with which it interacts, Compton scattering takes place. Incident x-ray is very high it only interacts with outer shell electrons. Incident photon loses energy, resultant photo ionizes the atom because of this loses energy passes onto Compton electron thus losing more energy.

Probability of the process occurring is independent of atomic number. Process is presumable to occur in bone and muscle. Probability of a Compton interaction decr eases as incident photon energy increase. P! hotoelectric absorption; occurs when the x-ray photon is draped resulting in the ejection of electrons from the outer shell of the atom, resulting in the ionization of the atom. the ionized atom returns to the neutral state with the waiver of an x-ray characteristic of the atom. This subsequent emission of lower energy... If you motive to exact a full essay, order it on our website: OrderCustomPaper.com

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