Molecular Axis Orientation in Charge Transfer Reactions Determined with a Reaction Microscope  

作　　者：Shao-feng Zhang Xin-wen Ma Xiao-long Zhu 

机构地区：[1]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Chinese Journal of Chemical Physics》2009年第6期621-626,J0002,共7页化学物理学报（英文）

基　　金：V. ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.10434100） and the Knowledge Innovation Project of Chinese Academy of Sciences.

摘　　要：Based on the reaction microscope at the institute of modern physics, the reaction mechanism in molecular ion-atom collisions is investigated experimentally. The features of this system is illustrated by a kinematically complete experhnent performed for the collision process. Using the so-called list-mode data recording technique and the coincidence measurement, the momentum vector of each fragment from the molecular ion were recorded event by event. The orientation of the molecular axis for H2^＋ dissociation reactions could be determined for each event in the off-line analysis. The measured orientation of the molecular ion is believed the same as the one at the instance of collision under axial recoil approximation. The polar angle resolution of the molecular orientation of ±8° was obtained.

关 键 词：Reaction microscope Imaging technique Molecular orientation Hydrogen molecular ion DISSOCIATION 

分 类 号：O614.338[理学—无机化学] O484.1[理学—化学]