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Threshold Photoelectron-photoion Coincidence Imaging of Dissociation Dynamic of NO+ at c3∏(v′=0) State
Jin-da Sun,Xiao-bin Shan,Fu-yi Liu,Liu-si Sheng*,Xiao-feng Tang,Ming-li Niu,Lei Song,Xiao-guo Zhou,Shi-lin Liu
Author NameAffiliationE-mail
Jin-da Sun School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China  
Xiao-bin Shan School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China  
Fu-yi Liu School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China  
Liu-si Sheng* School of Nuclear Science and Technology, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China lssheng@ustc.edu.cn 
Xiao-feng Tang Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Ming-li Niu Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Lei Song Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Xiao-guo Zhou Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Shi-lin Liu Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Abstract:
The photodissociation of NO+ at c3∏(v′=0) state is studied by threshold photoelectron-photoion coincidence imaging method. By some assumptions, the relations between velocity in center of mass (CM) coordinates and most probable center of mass (MPCM) coordinates,time of flight and displacement in the velocity map image of fragment ions are derived using vector addition of velocity and displacement on the condition of perpendicular molecular beam. Using these relations the velocity in CM coordinates, the velocity and angular distri-bution of N+ fragment ions in MPCM coordinates are obtained and discussed, respectively.
Key words:  Threshold photoelectron-photoion coincidence imaging, Velocity map imag-ing, Nitric oxide, Kinetic energy released distribution, Angular distribution
FundProject:
阈值光电子-光离子符合成像研究NO+c3∏(v′=0)态解离动力学
孙金大,单晓斌,刘付轶,盛六四*,唐小锋,牛铭理,宋磊,周晓国,刘世林
摘要:
用阈值光电子-光离子符合成像方法研究了处于c3∏(v′=0)态的NO+的光解离. 在使用垂直分子束的情况下,近似矢量加法规则推导了碎片离子在质心坐标系和最可几质心坐标系中的速度,飞行时间和在速度图像中的位移之间关系. 得到并讨论了N+碎片离子在质心坐标系中速度及在最可几质心坐标系中的速度和角度分布.
关键词:  阈值光电子-光离子符合成像,速度成像,一氧化氮,释放动能,角度分布
DOI:10.1088/1674-0068/23/05/509-512
分类号: