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题名: Cluster-assistant generation of multiply charged atomic ions in nanosecond laser ionization of seeded methyl iodide beam
作者: Luo, XL;  Niu, DM;  Kong, XL;  Wen, LH;  Liang, F;  Pei, KM;  Wang, B;  Li, HY
通讯作者: 李海洋
关键词: methyl iodide ;  coulomb explosion ;  multiply charged ions ;  cluster
刊名: CHEMICAL PHYSICS
发表日期: 2005-04-04
DOI: 10.1016/j.chemphys.2004.09.033
卷: 310, 期:1-3, 页:17-24
收录类别: SCI
文章类型: Article
部门归属: 1
项目归属: 102
产权排名: 2;8
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: The photoionization of methyl iodide beam seeded in argon and helium is studied by time-of-flight mass spectrometry using a 25 ns, 532 nm Nd-YAG laser with intensities in the range of 2 x 10(10)-2 x 10(11) W/cm(2). Multiply charged ions Of Iq+ (q = 2-3) and C2+ with tens of eV kinetic energies have been observed when laser interacts with the middle part of the pulsed molecular beam, whose peak profiles are independent on the laser polarization directions. Strong evidences show that these ions are coming from the Coulomb explosion of multiply charged CH3I clusters, and laser induced inverse bremsstrahlung absorption of caged electrons plays a key role in the formation of multiply charged ions. (C) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: COULOMB EXPLOSION ;  MULTIPHOTON IONIZATION ;  MOLECULAR CLUSTERS ;  ELECTRON DYNAMICS ;  PHOTON IONIZATION ;  NUCLEAR-DYNAMICS ;  FIELDS ;  PHOTODISSOCIATION ;  CH3I ;  NM
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000227421000003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93183
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Luo, XL,Niu, DM,Kong, XL,et al. Cluster-assistant generation of multiply charged atomic ions in nanosecond laser ionization of seeded methyl iodide beam[J]. CHEMICAL PHYSICS,2005,310(1-3):17-24.
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