METHOD FOR CALCULATION OF RADIATION

摘要

PROBLEM TO BE SOLVED: To propose a method for calculation of radiation provided with a means for speedily completing calculations while keeping calculation accuracy.

SOLUTION: In the vicinity of a calculation cell emitting radiation energy or a calculation cell P absorbing radiation energy, a small (level 0) cell is used. In a location apart from the calculation cell P, a large (level n) cell obtained by gathering a plurality of small cells is used. The largest calculation cell which can be included within an angle of visibilityΔΩof which a single ray is in charge is selected. The accuracy of radiation calculation is thus improved, the time of calculation is reduced and a memory required for the calculation can be reduced.

COPYRIGHT: (C)2004,JPO