Performance analysis of anti-scatter grid camera in high energy flash radiography

Based on the radiographic physics, the imaging formula with various physical quantities is presented for the basic layout of flash radiography with the anti-scatter grid camera. Before reducing the formula, the role of the anti-scatter grid camera is discussed through numerical simulation and theoretical analysis in limiting X-ray scatter and noise and blur, and the radiographic method with the anti-scatter grid camera is explored. It is shown that the anti-scatter grid camera is provided with high sensitive, little scatter and high resolution. Therefore, the formula of the transmission image with only the point spread function of X-ray source can be obtained through twice radiographing with/without the graded collimator and object.