The electron capture of H~+ ions in solid foils

【摘要】 <正>The negative ion yields φ(H-)and the neutral atom yields φ(H) of 0.6, 0.9, 1.2, 1.6 and 1.8 MeV H+ projectiles traversing various carbon foils have been measured. The experimental results showed that neither φ(H-) nor φ(H) varies with the dwell time td at the same energy. φ(H) is larger than φ(H-) by about 3-4 orders of magnitude. The charge exchanging between H+ ions and carbon foils was analyzed. It can be seen that the charge exchange is the most basic proc-ess.The experience formula of σ0/σ1 has been gotten.更多还原

【Abstract】 The negative ion yields φ(H-)and the neutral atom yields φ(H) of 0.6, 0.9, 1.2, 1.6 and 1.8 MeV H+ projectiles traversing various carbon foils have been measured. The experimental results showed that neither φ(H-) nor φ(H) varies with the dwell time td at the same energy. φ(H) is larger than φ(H-) by about 3-4 orders of magnitude. The charge exchanging between H+ ions and carbon foils was analyzed. It can be seen that the charge exchange is the most basic proc-ess.The experience formula of σ0/σ1 has been gotten.更多还原