Perspective: Advanced particle imaging
Perspective: Advanced particle imaging
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DOI：
10.1063/1.4983623
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发表时间：
2017-07-07
影响因子：
4.4
通讯作者：
Parker, David H.
中科院分区：
文献类型：
--
作者：
Chandler, David W.;Houston, Paul L.;Parker, David H.
自从第一次离子成像实验[D.W.钱德勒和P.L.休斯顿，j.chem。[物理学报，87,1445-1447(1987)]，证明了从单分子解离事件中收集光碎片图像并分析该图像以获得碎片三维速度分布的能力，离子成像技术的有效性和应用范围不断提高和增长。随着速度映射、离子/电子质心和切片成像技术的加入，其通用性和速度分辨率已经无与伦比。最近分子束、激光、传感器和计算机技术的进步使更先进的粒子成像实验成为可能，最终我们可以期望在单次拍摄的基础上进行具有协方差和完全重合能力的多质量成像，重复率在千赫兹范围内。这一进展将进一步使“完整”实验成为可能——这是分子动力学的圣杯——在实验中，双分子散射事件的所有反应物和产物的量子数都是完全确定的，甚至在我们的控制之下。AIP出版社出版。
Since the first ion imaging experiment [D.W. Chandler and P.L. Houston, J. Chem. Phys. 87, 1445-1447 (1987)], demonstrating the capability of collecting an image of the photofragments from a unimolecular dissociation event and analyzing that image to obtain the three-dimensional velocity distribution of the fragments, the efficacy and breadth of application of the ion imaging technique have continued to improve and grow. With the addition of velocity mapping, ion/electron centroiding, and slice imaging techniques, the versatility and velocity resolution have been unmatched. Recent improvements in molecular beam, laser, sensor, and computer technology are allowing even more advanced particle imaging experiments, and eventually we can expect multi-mass imaging with co-variance and full coincidence capability on a single shot basis with repetition rates in the kilohertz range. This progress should further enable "complete" experiments-the holy grail of molecular dynamics-where all quantum numbers of reactants and products of a bimolecular scattering event are fully determined and even under our control. Published by AIP Publishing.