title: Observation of electron beam moiré fringes in an image conversion tube.
abstract: An image conversion tube with a magnetic lens was designed to observe electron beam moiré fringes. Electron beam moiré fringes result from the interference between the photocathode and the anode meshes. The photocathode had a strip line structure with a spatial frequency of 10L/mm. The anode mesh had a fixed spatial frequency of 10L/mm, and could be rotated around the axis of the image tube. The changes to the fringe direction and the spacing as a function of the rotation angle between the photocathode and the anode mesh were examined. The experimental results agreed with the theoretical analysis. Moiré fringes with a modulation of ~20% were obtained using a 3keV electron beam.
authors: Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen University, Shenzhen 518060, China.
authors: Yunfei
authors: Y
authors: Lei
authors: Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen University, Shenzhen 518060, China.
authors: Yubo
authors: Y
authors: Liao
authors: College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, China.
authors: Jing-Hua
authors: JH
authors: Long
authors: Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen University, Shenzhen 518060, China.
authors: Houzhi
authors: H
authors: Cai
authors: Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen University, Shenzhen 518060, China.
authors: Yanli
authors: Y
authors: Bai
authors: Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Shenzhen University, Shenzhen 518060, China. Electronic address: ljy@szu.edu.cn.
authors: Jinyuan
authors: J
authors: Liu
keywords: Anode mesh; Electron beam moiré; Image conversion tube; Magnetic lens; Photocathode