Laser & Optoelectronics Progress, Volume. 55, Issue 7, 70401(2018)

Temporal and Spatial Performances of Framing Camera Based on Magnetic Focusing Imaging and Electron Pulse Time Dilation

Cai Houzhi1, Fu Wenyong1, Lei Yunfei1, Liao Yubo1, Liu Jinyuan1, and Long Jinghua2、*
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  • 1[in Chinese]
  • 2[in Chinese]
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    A novel framing camera based on multiple magnetic focusing imaging and electron pulse time dilation is developed. The relationship between the spatial resolution and the number of the magnetic focusing lenses as well as that between the spatial resolution and the current is investigated. The experimental results show that the spatial resolution is the best when three magnetic focusing lenses and the suitable current are chosen. The larger the off-axis distance is, the worse the spatial resolution is. The relationship between spatial resolution and bias voltage is investigated and it is found that the spatial resolution improves with the increase of the bias voltage between the photo-cathode and the mesh. The image plane of this novel framing camera is a curved surface and the whole cathode surface cannot be simultaneously imaged. The temporal resolution is improved to 11 ps when the time dilation technology is introduced and the static spatial resolution is 5 lp·mm-1 when the image ratio is 2∶1.

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    Cai Houzhi, Fu Wenyong, Lei Yunfei, Liao Yubo, Liu Jinyuan, Long Jinghua. Temporal and Spatial Performances of Framing Camera Based on Magnetic Focusing Imaging and Electron Pulse Time Dilation[J]. Laser & Optoelectronics Progress, 2018, 55(7): 70401

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    Paper Information

    Category: Detectors

    Received: Dec. 26, 2017

    Accepted: --

    Published Online: Jul. 20, 2018

    The Author Email: Jinghua Long (jhlong@szu.edu.cn)

    DOI:10.3788/lop55.070401

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