Cluster-assisted multiple ionization of methyl iodide by a nanosecond laser: Influence of laser intensity on the kinetic energy and peak profile of multicharged ions
文献类型：期刊论文
| 作者 | Wen, LH; Li, HY; Luo, XL; Niu, DM; Xiao, X; Wang, B; Liang, F; Hou, KY; Shao, SY |
| 刊名 | chemical physics
 |
| 出版日期 | 2006-03-20 |
| 卷号 | 322期号:3页码:360-365 |
| 关键词 | methyl iodide multiple ionization cluster space charge effect |
| 英文摘要 | the dependences of kinetic energies and peak profiles of multicharged ions of iq+ (q = 2-3) and c2+ on the laser intensity have been studied in detail by time-of-flight mass spectrometry, those multicharged ions are produced by irradiation of methyl iodide cluster beam with a nanosecond 532 nm nd-yag laser. our experiments show that the kinetic energies released of multicharged ions increase linearly with the laser intensity in the range of 3 x 10(9)-2 x 10(11) w/cm(2). the peaks of multicharged ions are split to forward ions and backward ions, and the ratio of the backward ions to forward ions decreases exponentially with laser intensity. the decreasing of backward ions is probably due to coulomb scattering by the heavier i+ ions when they turn around through the laser focus point. the linear dependence of kinetic energy of multicharged ions on laser intensity is interpreted by the ionization mechanism, in which the laser induced inverse bremsstrahlung heating of electron is the rate-limiting step. (c) 2005 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical ; physics, atomic, molecular & chemical |
| 研究领域[WOS] | chemistry ; physics |
| 关键词[WOS] | x-ray-emission ; coulomb explosion ; multiphoton ionization ; molecular clusters ; electron dynamics ; nuclear-dynamics ; atomic clusters ; generation ; fields ; pulses |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236318200014 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140264]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Techol, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, LH,Li, HY,Luo, XL,et al. Cluster-assisted multiple ionization of methyl iodide by a nanosecond laser: Influence of laser intensity on the kinetic energy and peak profile of multicharged ions[J]. chemical physics,2006,322(3):360-365. |
| APA | Wen, LH.,Li, HY.,Luo, XL.,Niu, DM.,Xiao, X.,...&Shao, SY.(2006).Cluster-assisted multiple ionization of methyl iodide by a nanosecond laser: Influence of laser intensity on the kinetic energy and peak profile of multicharged ions.chemical physics,322(3),360-365. |
| MLA | Wen, LH,et al."Cluster-assisted multiple ionization of methyl iodide by a nanosecond laser: Influence of laser intensity on the kinetic energy and peak profile of multicharged ions".chemical physics 322.3(2006):360-365. |
入库方式： OAI收割
来源：大连化学物理研究所
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