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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Professor Dr. Hongbin Ding
其他任职：物理学院学术委员会主任，等离子体联合研究中心主任,中国光学工程学会LIBS专委会副主任, 中国核学会核聚变等离子体分会常务理事，辽宁省物理学会副理事长，国际ITER-ITPA 委员
性别：男
毕业院校：巴塞尔大学
学位：博士
所在单位：物理学院
学科：等离子体物理. 光学工程
联系方式：hding@dlut.edu.cn
电子邮箱：hding@dlut.edu.cn
Diagnosis of Active Species in Reactive Acetylene Plasma by Laser-Ionization Molecular-Beam Time-of-Flight Mass Spectrometry
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论文类型：期刊论文
发表时间：2011-06-01
发表刊物：PLASMA CHEMISTRY AND PLASMA PROCESSING
收录刊物：SCIE、EI
卷号：31
期号：3
页面范围：405-415
ISSN号：0272-4324
关键字：LMB-TOFMS; Acetylene plasma; Intermediate species; Reactive plasma
摘要：This work reports a new laser molecular beam time-of-flight mass spectrometry (LMB-TOFMS) instrument built at Plasma Spectroscopy Lab in Dalian University of Technology (DUT). The preliminary investigation of the intermediate species distribution of acetylene plasma in an atmospheric-pressure fast-flow nanosecond-pulsed dc-discharge has been carried out. The C(x)H(2) species (x = 4,6,8), believed to be the dominant source of negative ions in C(2)H(2) plasma, have been detected with relatively intense peak signals and some complex radical species like C(7)H(7), C(9)H(5), C(10)H(5) are also observed. The addition of Ar gas significantly influenced the detection of the intermediate species. This is might be due to the metastable Ar(*) with energies of 11.5 and 11.7 eV and a long lifetime. The potentialities of LMB-TOFMS for hydrocarbon plasmas diagnosis have been discussed.