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题名: Generation of multiple charged ions: Photoemission electron impact ionization
作者: Wang, L;  Li, HY;  Bai, JL;  Lu, RC
关键词: multiple charged ions ;  photoemission electron ;  electron impact ionization ;  time-of-flight mass spectrometer
刊名: SCIENCE IN CHINA SERIES B-CHEMISTRY
发表日期: 1998-10-01
卷: 41, 期:5, 页:525-534
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Delayed pulsed electric field was used to investigate the generation mechanism of multiple charged ions produced in the interaction of laser, metal surface and electric field on time-of-flight mass spectrometer (TOF MS). A special photoelectron generator was designed to control the energy and timing of the photoelectron beam. This modification made it possible to separate the photoionization process from photoelectron impact ionization. The experiment showed that the multiple charged ions could be produced only by the photoelectron impact, ionized step by step. A design of dual ionization configuration was presented, which could be used to study either multiphoton ionization or photoemission electron impact ionization.
关键词[WOS]: FLIGHT MASS-SPECTROMETER
语种: 英语
WOS记录号: WOS:000076532000011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138138
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.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Wang, L,Li, HY,Bai, JL,et al. Generation of multiple charged ions: Photoemission electron impact ionization[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,1998,41(5):525-534.
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