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利用部分地考虑了能量损失的角关联的改进离子输运双群模型，计算了４Ｈｅ＋离子垂直入射到Ｃ和Ｃｕ上的能量沉积系数，改进了早期的离子输运双群模型
The energy deposition coefficients of 4He + ions perpendicularly incident on C and Cu were calculated by using the double ion group transport model with improved ion transport which partially considered the energy loss and improved the early ion transport double group model