Generation method of dynamic independent collimating device collimation block movement path
A technology of motion trajectory and collimator, applied in the direction of using diaphragm/collimator, X-ray/γ-ray/particle irradiation therapy, etc., can solve the problem of long static intensity modulation treatment time, long treatment time, Problems such as low utilization rate of rays
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[0049] Refer below Figure 7 The method for generating the motion trajectory of the collimation block of the dynamic independent collimator according to the first embodiment of the present invention is described.
[0050] First, step (1): determine the ideal intensity distribution.
[0051] (2) Use a real number variable to represent the position of the collimation block of the independent collimator at each control point, where the positions of the collimation block A, the collimation block B, the collimation block G, and the collimation block T when the cumulative irradiation time is t The positions respectively denote J A (t), J B (t), J G (t), J T (t).
[0052] (3) Based on the positions of the four collimation blocks, calculate the intensity distribution I(x, y) of any point (x, y) in the field of view according to formula (1):
[0053] I ( x , y ) = ∫ ...
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