Amini K, Blake S, Brouard M, Burt M B, Halford E, Lauer A, Slater C S, Lee J W L, Vallance C
The Physical and Theoretical Chemistry Laboratory, The Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom.
The Chemistry Research Laboratory, The Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom.
Rev Sci Instrum. 2015 Oct;86(10):103113. doi: 10.1063/1.4934544.
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.
像素成像质谱（PImMS）相机用于原理验证的三维成像实验，分别对波长约为230nm和245nm的羰基硫和碘乙烷进行光解离研究。将PImMS相机与直流切片速度映射成像相结合，可在每个激光泵浦 - 探测周期以12.5ns的时间精度记录光碎片离子完整的三维牛顿球，在所展示的应用中，沿飞行时间轴的速度分辨率约为6% - 9%。
