研究了每核子能量为260-450 keV的H+2, H+3, H+4 H+5和 H+7团簇离子在金膜中的能损. 发现团簇离子中平均每个质子的能损大于相同速度的单质子能损, 即能损比大于1, 且随团簇离子的大小和速度的增加而增加.
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