Scatter radiation from abdominal CT examinations.
Several water phantoms were scanned under a number of conditions and radiation exposure due to scatter was measured at the center of one end. The decrease of the scatter radiation exposure is nearly exponential with distance from the slice plane. The half-value distance is a function of the slice cross-sectional area. An empirical equation is presented to relate exposure to the pertinent variables.
D006801:Humans; D008961:Models, Structural; D011829:Radiation Dosage; D011860:Radiography, Abdominal; D012542:Scattering, Radiation; D014057:Tomography, X-Ray Computed