Ion-Neutral Photofragment Coincidence Imaging of Photodissociation Dynamics of Ionic Species

作     者：Ze-feng Hua Yun-xiao Zhao You-qing Li Gao-ming Hu Yang Chen Dong-feng Zhao 华泽丰;赵云肖;李佑卿;胡高明;陈场;赵东锋

作者机构：CAS Center for Excellence in Quantum Information and Quantum PhysicsHefei National Laboratory for Physical Sciences at the Microscaleand Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026China 

基　　金：This work was supported by the National Key R&D Program of China(No.2017YFA0303502) the National Natural Science Foundation of China(No.21773221 and No.21827804) the Fundamental Research Funds for the Central Universities of China(No.WK2340000078) 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2021年第34卷第1期

页      码：81-86,I0011,I0012页

摘      要：The recen tly cons true ted cryogenic cylindrical ion trap velocity map imaging spectrometer(CIT-VMI)has been upgraded for coincidence imaging of both ionic and neutral photofragments from photodissociation of ionic *** prepared ions are cooled down in a homemade cryogenic cylindrical ion trap and then extracted for photodissociation *** th the newly designed elec trie fields for extraction and acceleration,the ion beam can be accelerated to more than 4500 eV,which is necessary for velocity imaging of the neutral photofragments by using the position-sensitive imaging detect *** setup has been tested by the 355 nm pho todissocia tion dynamics of the argon dimer cat ion(Ar2+).From the recorded experimen tal images of both neu tral Ar and ionic Ar+fragments,we interpret velocity resolutions of△v/vu4.6%for neutral fragments,and△v/vul.5%for ionic fragments,respectively.

主 题 词：Ion trap Velocity map imaging photofragment coincidence imaging 

学科分类：081704[081704] 07[理学] 070304[070304] 08[工学] 0817[工学-轻工类] 0703[理学-化学类] 

核心收录：

D　O　I：10.1063/1674-0068/cjcp2007119

馆 藏 号：203102369...