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本程序使用最速下降法寻求分层屏蔽重量最小化,适用于平板,圆柱和球形几何。中子通量分布用少群扩散方程得到;γ射线的处理用点核积分方法。对铅-水和铁-水屏蔽结构进行了最佳化计算。
This program uses the steepest descent method to seek a minimum of stratified shield weight for flat, cylindrical, and spherical geometry. The neutron flux distribution is obtained using a small group of diffusion equations; the γ-ray processing is based on the point kernel integration method. The lead-water and iron-water shielding structures were optimized.