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A new electron-ion coincidence 3D momentum-imaging method and its application in probing strong field dynamics of 2-phenylethyl-N, N-dimethylamine

机译:一种新的电子 - 离子重合3D动量成像方法及其在探测2-苯基乙基-N,N-二甲胺的强田动力学中的应用

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We report the development of a new three-dimensional (3D) momentum-imaging setup based on conventional velocity map imaging to achieve the coincidence measurement of photoelectrons and photo-ions. This setup uses only one imaging detector (microchannel plates (MCP)/phosphor screen) but the voltages on electrodes are pulsed to push both electrons and ions toward the same detector. The ion-electron coincidence is achieved using two cameras to capture images of ions and electrons separately. The time-of-flight of ions and electrons are read out from MCP using a digitizer. We demonstrate this new system by studying the dissociative single and double ionization of PENNA (2-phenylethyl-N, N-dimethylamine). We further show that the camera-based 3D imaging system can operate at 10 kHz repetition rate. Published by AIP Publishing.
机译:我们报告了一种基于传统速度映射成像的新三维(3D)动量成像设置的开发,以实现光电子和光子的重合测量。 该设置仅使用一个成像检测器(微通道板(MCP)/荧光屏),但是电极上的电压被脉冲,以将电子和离子推向相同的检测器。 使用两个相机实现离子电子巧合,以分别捕获离子和电子的图像。 使用数字化器从MCP读出离子和电子的飞行时间。 我们通过研究PenNA的分离单和双电离(2-苯基乙基-N,N-二甲胺)来证明这种新系统。 我们进一步表明,基于相机的3D成像系统可以以10 kHz的重复率运行。 通过AIP发布发布。

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