4. X-Ray Image Formation

________ scattering depends on material density and its electron density.

________ and electron may interact and produce a pair of annihilation photons in the opposite direction, each with 511 keV.

________ is the number of incident photons, N is the number of photons coming out of a material, and Δx is the distance the photons travel (objects thickness)

________ within the matter oscillate in phase when the photon interacts, but none are ejected.

The ________ describes a photon interacting with a single electron, which bumps around energy levels.

________ is ejected and the photon loses energy, veering off of its path.

________ has a pretty low energy range, but this affects quality.

In ________, the photon interacts with a single (probably valence) electron.

Μ is the ________.

________ must be greater than 1.02 MeV (double the static general photon ________, which is 511) to produce a positron- electron pair.

________ depends on the materials density and atomic number, as well as the photons energy.

________ is the most common mode of interaaction within the imaging energy range.

N = N0 * e^-μΔx

μ / density

Density, atomic number

Compton scattering, photoelectric effect

Nucleus

False

True

Photoelectron, ion, characteristic radiation

increases, decreases

Rayleigh