X-ray Interaction with matter

-Attenuation; a reduction in the intensity of a round of x-radiation as it passes through a medium due to denseness or to dissipateor to both. -Absorption; the transfer of energy from the roentgenogram send to the medium through which it passes. -Scattering; a flip-flop in the sharp-sightedness of a photon due to fundamental fundamental interaction with the medium, this can travel by with or without the loss of energy from the photon. -4 types of roentgenogram interaction withn take occur; rayleigh circularize, Compton scatter, photoelectric absorptoion and pair production. The first 3 make up a role in diagnostic radiography. Rayleigh break up; occurs when the roentgenogram 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 ener gy. Scattering is mainly in the before direction. Compton scatter; If an x-ray photon has an energy real(prenominal) much greater than the ionisation 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, concomitant photo ionizes the atom because of this loses energy passes onto Compton electron thus losing much energy.

Probability of the process occurring is independent of atomic number. Process is surmisable to occur in bone and muscle. Probability of a Compton interaction dec reases as incident photon energy increase. ! Photoelectric 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 loss to exact a full essay, order it on our website: OrderCustomPaper.com

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