Wilson J W, Townsend L W, Lamkin S L, Ganapol B D
NASA Langley Research Center, Hampton, Virginia 23665-5225.
Radiat Res. 1990 Jun;122(3):223-8.
An analytic solution for high-energy heavy ion transport assuming straight-ahead and velocity-conserving interactions with constant nuclear cross-reactions is given in terms of a Green's function. The series solution for the Green's function is rapidly convergent for most practical applications. The Green's function technique can be applied with equal success to laboratory beams as well as to galactic cosmic rays allowing laboratory validation of the resultant space shielding code.
给出了一个高能重离子输运的解析解，该解假设在具有恒定核反应截面的情况下，粒子发生向前直线且速度守恒的相互作用，并用格林函数表示。对于大多数实际应用，格林函数的级数解收敛速度很快。格林函数技术可同样成功地应用于实验室束流以及银河系宇宙射线，从而可以在实验室对所得的空间屏蔽代码进行验证。
