[1F12-14] Analysis Method Development 2

[1F12] Development of collision probability method based on Mesh to Mesh computation (10)

Approximate calculation method of collision probability among multiple meshes

*Tetsuo Matsumura¹ (1. CRIEPI)

Keywords:Transport calculation, collision probability, escape probability

In the collision probability method that independently calculates the collision probability from the individual region (Mesh) to the region, we have developed a method to easily calculate the collision probability that takes time in numerical calculation. A method to calculate the collision probability among multiple meshes with different cross sectional areas from the collision probability of the homogeneous XY system which can be easily calculated from the escape probability table was studied. By further dividing the region, it was shown that the probability of collision among multiple regions with different cross sectional areas can be approximated.