Creese Mathew, Howard John
Plasma Research Laboratory, Australian National University, Canberra ACT 0200, Australia.
Rev Sci Instrum. 2010 Oct;81(10):10D722. doi: 10.1063/1.3492410.
Recent advances in imaging techniques have allowed the extension of the standard polarimetric 1D motional Stark effect (MSE) diagnostic to 2D imaging of the internal magnetic field of fusion devices [J. Howard, Plasma Phys. Controlled Fusion 50, 125003 (2008)]. This development is met with the challenge of identifying and extracting the new information, which can then be used to increase the accuracy of plasma equilibrium and current density profile determinations. This paper develops a 2D analysis of the projected MSE polarization orientation and Doppler phase shift. It is found that, for a standard viewing position, the 2D MSE imaging system captures sufficient information to allow imaging of the internal vertical magnetic field component B(Z)(r,z) in a tokamak.
成像技术的最新进展使得标准的极化一维运动斯塔克效应（MSE）诊断能够扩展到聚变装置内部磁场的二维成像[J. 霍华德，《等离子体物理与受控核聚变》50，125003（2008）]。这一发展面临着识别和提取新信息的挑战，这些新信息随后可用于提高等离子体平衡和电流密度分布测定的准确性。本文开展了对投影MSE极化方向和多普勒相移的二维分析。结果发现，对于标准的观测位置，二维MSE成像系统捕获了足够的信息，从而能够对托卡马克内部的垂直磁场分量B(Z)(r,z)进行成像。
