X-ray Interaction with matter

-Attenuation; a reduction in the intensity of a multifariousness surface of x-radiation as it passes through a medium due to soaking up or to dissipateor to both. -Absorption; the transfer of energy from the roentgenogram maculation to the medium through which it passes. -Scattering; a change in the sharp-sightedness of a photon due to fundamental interaction with the medium, this can pall with or without the loss of energy from the photon. -4 types of roentgen ray interaction withn press occur; rayleigh circularize, Compton scatter, photoelectric absorptoion and pair production. The first 3 lam a role in diagnostic radiography. Rayleigh spread; 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 en ergy. Scattering is mainly in the preceding 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, incidental 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 supposable to occur in bone and muscle. Probability of a Compton interact ion decreases as incident photon energy incr! ease. 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 firing off of an x-ray characteristic of the atom. This subsequent emission of lower energy... If you desire to exact a full essay, order it on our website: OrderCustomPaper.com

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