MCP成像探测器前端电子学增益补偿

Research on front-end electronics gain compensation of MCP imaging detector

基于微通道板电子倍增电荷分割型阳极的成像探测器常用于行星大气、气辉等微弱信号探测。针对探测器读出电路增益不相等导致探测器成像产生畸变的问题,利用理论分析结合MATLAB仿真揭示了不同畸变图像的形成机制,在该基础上提出了一种探测器读出电路增益补偿方法减小探测器成像畸变。通过MATLAB仿真和实验测试结果表明该文提出的方法能够有效减小由于读出电路增益不相等导致的探测器成像畸变。

The imaging detectors based on the electron multiplication charge splitting anode of micro-channel plate are often used for weak signal detection such as planetary atmosphere and airglow.In view of the problem of detector imaging distortion caused by unequal gain of detector readout circuit,the theoretical analysis combined with MATLAB simulations were used to reveal the formation mechanism of different distorted images,and a gain compensation method of detector readout circuit was proposed to reduce the detector imaging distortion.The MATLAB simulation and experimental results show that the proposed method can effectively reduce the detector imaging distortion due to the unequal gain of readout circuit.