利用激光层析成像对 dusty plasma 中颗粒进行 3D 跟踪
3D tracking of particles in a dusty plasma by laser sheet tomography
AI总结：
本文提出了一种基于扫描激光片和单高速相机的高速层析成像方法，克服了传统立体成像在样本体积和时间尺度上的限制，实现了对dusty plasma中数十个颗粒在厘米尺度、数分钟内的3D跟踪。
摘要：
悬浮于弱电离等离子体（dusty plasma）中颗粒的集体行为引起了重大的科学兴趣。这是由于作用在颗粒上的复杂力阵列，以及它们作为等离子体环境原位诊断的潜力。理想情况下，应在长时间内跟踪许多颗粒的三维（3D）运动。通常，使用多相机结合粒子图像测速（PIV）的立体成像被用于获取许多颗粒的速度场，但该方法受限于其样本体积和短时间尺度。在此，我们展示了一种不同的高速层析成像方法，能够跟踪单个颗粒。我们使用与单个高速相机耦合的扫描激光片。我们能够在厘米尺度上识别并跟踪数十个单个颗粒，持续数分钟，对应于超过 10,000 帧。
英文摘要：
The collective behavior of levitated particles in a weakly-ionized plasma (dusty plasma) has raised significant scientific interest. This is due to the complex array of forces acting on the particles, and their potential to act as in-situ diagnostics of the plasma environment. Ideally, the three-dimensional (3D) motion of many particles should be tracked for long periods of time. Typically, stereoscopic imaging using multiple cameras combined with particle image velocimetry (PIV) is used to obtain a velocity field of many particles, yet this method is limited by its sample volume and short time scales. Here we demonstrate a different, high-speed tomographic imaging method capable of tracking individual particles. We use a scanning laser sheet coupled to a single high-speed camera. We are able to identify and track tens of individual particles over centimeter length scales for several minutes, corresponding to more than 10,000 frames.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
