Imaging Reactive and Inelastic Stereodynamics of Radicals

这是一个化学博士研究项目。该项目将研究小自由基分子碰撞的立体动力学，通过共振增强的多光子电离结合交叉分子束和光谱状态检测，再加上产生离子的速度图成像。自由基（如NO， OH， CH）将在大气，燃烧或天体化学环境中与感兴趣的原子和分子碰撞，候选人将在特定的旋转状态水平上确定自由基的微分散射截面，并在可能的情况下确定角度分辨的旋转极化矩。这些结果将与散射的理论模型进行比较，要么是经典的，要么是可能的量子力学的，提供关于决定碰撞动力学的势能表面的信息和测试。

This is a PhD research project in Chemistry. The project will study the stereodynamics of collisions of small radical molecules, using a combination of crossed molecular beams with spectroscopic state detection through resonance-enhanced multiphoton-ionisation, coupled to velocity-map imaging of the resulting ions. The radicals (e.g. NO, OH, CH) will be collided with atoms and molecules of interest in atmospheric, combustion or astrochemical environments, and the candidate will determine the differential scattering cross sections for the radicals at a rotational state-specific level, and where possible, the angle-resolved rotational polarization moments. These results will be compared to theoretical models of the scattering, either classical, or where possible quantum mechanical, providing information on, and tests of, the potential energy surfaces that determine the collision dynamics.