论文部分内容阅读
全部实验结果表明,用来读出探测器信号的电荷耦合器件(CCD)或用作信号处理电子装置的CCD,可以在高电离辐射环境下实时工作。进一步的工作应是在制造过程中提高CCD 所能承受的硬度而耐受总剂量达1×10~6拉德的辐射(Si),并研究在与红外探测器相结合的电荷耦合器件中电离辐射的效应。用来读出探测器信号的CCD 器件可以制成能够处理辐射产生的过量噪声,并能处理探测元件中产生的高虚警率。在CCD 读出结构内直接产生的影响中,预计主要是探测器中产生的电离辐射效应;但许多影响因探测器的相对尺寸而异。在CCD-MOS 场效应管结构中测得的γ辐射引起的过量低频噪声可能使需进行实时工作的空间传感器仅仅在γ辐射通量级很高的情况下出现疑问。有可能在CCD 电子读出装置的输出端使用鉴别和避免的方法。在CCD 电子读出装置输出端测得的γ辐射引起的脉冲,其振幅是不一致的,脉宽是变化的(有些是时钟周期的好几倍)。
All the experimental results show that the CCD (Charge Coupled Device) used to read the detector signal or the CCD used as the signal processing electronic device can work in real time under high ionizing radiation environment. Further work should be to increase the hardness of the CCD can withstand the manufacturing process to withstand radiation (Si) of a total dose of 1 × 10 ~ 6 Radon, and to study the ionization coupled with the infrared detector charge-coupled device The effect of radiation. The CCD device used to read the detector signal can be made to handle the excess noise generated by the radiation and to handle the high false alarm rate generated in the detector element. Of the direct effects that occur within the CCD readout structure, it is expected that this will primarily be the effect of ionizing radiation generated in the detector; however, many effects will vary depending on the relative size of the detector. The excess low-frequency noise caused by gamma radiation measured in a CCD-MOS FET structure may make it problematic that space sensors requiring real-time operation only have high gamma radiation flux levels. It is possible to use a method of discrimination and avoidance at the output of the CCD electronic read-out device. The pulses of gamma radiation measured at the output of the CCD electronic readout have inconsistent amplitudes and varying pulse widths (some several times the clock period).