Three-dimensional imaging of carbonyl sulfide and ethyl iodide photodissociation using the pixel imaging mass spectrometry camera

被引:30
作者
Amini, K. [1 ]
Blake, S. [1 ]
Brouard, M. [1 ]
Burt, M. B. [1 ]
Halford, E. [1 ]
Lauer, A. [1 ]
Slater, C. S. [1 ]
Lee, J. W. L. [2 ]
Vallance, C. [2 ]
机构
[1] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
[2] Univ Oxford, Dept Chem, Chem Res Lab, Oxford OX1 3TA, England
基金
英国工程与自然科学研究理事会;
关键词
TO-STATE PHOTODISSOCIATION; NONADIABATIC BENDING DISSOCIATION; POSITION-SENSITIVE DETECTOR; MICROCHANNEL-PLATE DETECTOR; ABSORPTION CROSS-SECTIONS; TIME-OF-FLIGHT; OCS MONOMERS; VELOCITY; FRAGMENTATION; DYNAMICS;
D O I
10.1063/1.4934544
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The Pixel Imaging Mass Spectrometry (PImMS) camera is used in proof-of-principle three-dimensional imaging experiments on the photodissociation of carbonyl sulfide and ethyl iodide at wavelengths around 230 nm and 245 nm, respectively. Coupling the PImMS camera with DC-sliced velocity-map imaging allows the complete three-dimensional Newton sphere of photofragment ions to be recorded on each laser pump-probe cycle with a timing precision of 12.5 ns, yielding velocity resolutions along the time-of-flight axis of around 6%-9% in the applications presented. (C) 2015 AIP Publishing LLC.
引用
收藏
页数:15
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