蔡厚智, 龙井华, 刘进元, 谢维信, 牛憨笨. 无增益微通道板皮秒分幅技术研究[J]. 红外与激光工程, 2015, 44(S1): 109-112.
引用本文: 蔡厚智, 龙井华, 刘进元, 谢维信, 牛憨笨. 无增益微通道板皮秒分幅技术研究[J]. 红外与激光工程, 2015, 44(S1): 109-112.
shu
Cai Houzhi, Long Jinghua, Liu Jinyuan, Xie Weixin, Niu Hanben. Non-gain microchannel plate picosecond framing technology[J]. Infrared and Laser Engineering, 2015, 44(S1): 109-112.
Citation: Cai Houzhi, Long Jinghua, Liu Jinyuan, Xie Weixin, Niu Hanben. Non-gain microchannel plate picosecond framing technology[J]. Infrared and Laser Engineering, 2015, 44(S1): 109-112.
shu

无增益微通道板皮秒分幅技术研究

Non-gain microchannel plate picosecond framing technology

    摘要
  • 摘要: 研制了无增益微通道板(Microchannel plate, MCP)选通X射线分幅相机,由无增益MCP变像管、成像针孔阵列、皮秒选通脉冲发生器及CCD构成。对相机时间分辨率进行了测量,当无增益MCP加载-1.5 kV、145 ps的选通脉冲和-300 V的直流偏置时,测得相机的时间分辨率为59 ps。改变MCP直流偏置电压,获得了时间分辨率、输出信号强度与MCP偏置电压的关系。实验结果表明,随着MCP偏置电压的减小,时间分辨率提高,但输出信号强度降低。

     

    Abstract: A non-gain microchannel plate (MCP) gated X-ray framing camera was reported. It is made up of four basic components, the non-gain MCP imager, the pinhole array, the picosecond gating pulse generator, and the CCD camera system. The temporal resolution was measured by using a fiber bunch. While the gating pulse with width of 145 ps and amplitude of -1.5 kV plus -300 V bias were applied on the non-gain MCP, the measured temporal resolution of this camera was about 59 ps. Furthermore, the relationship between the temporal resolution and the MCP bias voltage was obtained. The variation of the temporal resolution with the intensity of the output signal was also provided. The experimental results show that the temporal resolution is improved while the MCP bias voltage is decreased. However, the intensity of the output signal is reduced while the MCP bias voltage is decreased.

     

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