Development and preliminary results of phase contrast imaging diagnostic on HL-2A

• Published in: Fusion engineering and design Vol. 139; pp. 104 - 108
• Main Authors: Gong, S.B., Yu, Y., Xu, M., Sun, A.P., Lan, T., Liu, H., Zhong, W.L., Shi, Z.B., Wang, H.J., Wu, Y.F., Yuan, B.D., Mao, S.F., Ye, M.Y., Duan, X.R.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.02.2019; Elsevier Science Ltd
• Subjects: Broadband; Carbon dioxide; Carbon dioxide lasers; Diagnostic systems; Magnetic probes; Magnetohydrodynamics; PCI; Phase contrast; Phase shift; Plasma; Plasma density; Plasma density fluctuations; Sound sources; Stability; Temporal resolution; Tokamak devices; Variation; Phase shift; Plasma density fluctuations; PCI

•A laser based phase contrast imaging diagnostic has been developed on HL-2 A.•Frequency and wavenumber range are 1 kHz ˜ 500 kHz and 2 cm−1 ˜ 15 cm-1.•A special designed imaging platform is constructed to ensure stability.•Comparison with magnetic probe data shows the reliability of this PCI diagno...