METHOD FOR IMPROVING THE QUALITY OF A RADIOGRAPHIC IMAGE OF AN OBJECT OBTAINED BY A RADIOGRAPHING APPARATUS EQUIPPED WITH AN ANTI-DISPENSING GRID

摘要

P The law of displacement of the antidiffusion grid is a continuous curve (CB) having a symmetry-point with respect to the point (SP) whose coordinate time is equal to half of said duration of shooting (TP), and whose spatial derivative of the temporal variable has two linear portions symmetrical with respect to an axis of symmetry passing through the middle of the range of movement of the grid. The gate is moved according to said displacement law with a high displacement speed (VO) in the vicinity of the starting position (XO) and the arrival position (XM). Application: to mammography exams. / P