[Reduction in radiation scatter during radiographic magnification techniques (author's transl)].
The reduction in scatter during magnification techniques is compared with the effect of grids. The results of extensive measurements concerning scatter and distance in a water phantom are shown in 24 diagrams. The various factors were altered as follows: distance 0-1.5 m., phantom thickness 0-27.5 cm., area 5 cm. x 5 cm. - 30 cm. x 30 cm. and kilovoltage 50-150 kv. The amount of scatter immediately behind the phantom is compared with that through a grid by observing image quality for given amounts of scatter. This "grid-equivalent" image quality can be used to determine the circumstances under which a magnification technique can be employed without using a grid.
D011829:Radiation Dosage; D011858:Radiographic Magnification; D012542:Scattering, Radiation
Uber die Streustrahlenverminderung bei der Röntgenvergrösserungstechnik