排序方式: 共有11条查询结果,搜索用时 15 毫秒
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简略介绍了“尾流”效应(wakeeffect)的等离子体模型,并依之模拟计算了1.915MeVH、2.060MeVH在100A碳膜中分解后0°方向的能谱形式。给出了相同条件下的实验结果,将两者做了比较。 相似文献
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用于团簇碰撞研究的多路多道谱数据在线获取与处理系统 总被引:1,自引:0,他引:1
开发成功了基于ISA总线的智能高速AD数据采集接口电路。在一台PC微机中,可以同时使用多个该接口电路而不占用更多的PC机内存空间。在显示和处理数据时,数据采集速度不受影响。在Windows环境下开发成功了配套软件。用此接口电路构成了多路多道能谱数据获取与在线处理系统,并已成功地应用于微团簇与固体相互作用的实验研究中。 相似文献
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The bond length of ^4HeH^+ resulting from collision-induced destruction is measured at 1.4420 MeV using the Coulomb Explosion Technique. The measured bond length of ^4HeH^+ is 0.094±0.003nm. The bond length of ^4HeH^+ obtained with our radio frequency (RF) ion source is larger than that obtained with a duoplasmatron ion source at Argonne National Laboratory (ANL), but the bond lengths of H^+2 and H^+3obtained separately by ANL and by us with the two different ion sources are consistent with each other, which implies that there exists an ion source effect on the bond length of ^4HeH^+. The main reason why the 4^4HeH^+ bond lengths obtained by the two different ion sources are different is also discussed. 相似文献
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在0.6, 0.9, 1.2, 1.6和1.8 MeV的能量下, 测量了H+离子在不同厚度的碳膜中产生的中性产物H和负离子产物H-的产额Φ(H)和Φ(H-). 测量结果表明, 在相同的能量下Φ(H)和Φ(H-)都是常数, 而且Φ(H)比Φ(H-)大几个数量级. 分析了H+在固体中运行时不断地俘获和损失电子的电荷交换过程. 证明快离子在固体中确实存在这个过程, 并得到了电荷交换截面比的经验公式. 相似文献
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The electron capture of H+ ions in solid foils 总被引:1,自引:0,他引:1
The negative ion yields φ (H-)and the neutral atom yields φ (H) of 0.6, 0.9, 1.2, 1.6 and1.8 MeV H+ projectiles traversing various carbon foils have been measured. The experimental re-sults showed that neither φ (H-) nor φ (H) varies with the dwell time td at the same energy. φ (H) islarger than φ (H-) by about 3-4 orders of magnitude. The charge exchanging between H+ ionsand carbon foils was analyzed. It can be seen that the charge exchange is the most basic proc-ess.The experience formula of σc/σ/has been gotten. 相似文献
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