利用微通道板极间耦合损失实现复合探测的空间束导栅型调制机制

从位置和能量复合分辨的角度出发, 开展基于微通道束导栅型空间调制的复合探测技术研究:探究微通道光电倍增机构的电子束空间束导机理, 构建适用于栅型薄膜空间调制的微通道束导机构;揭示相关电子光学参数对其空间光学传递特性影响关系;设计构建基于微通道束导栅型空间调制的复合探测原型器件并在真空测试系统中开展了性能对比实验, 最终验证栅型结构在成像与探测动态范围方面具有明显优势。

Beam-Guide Gate-Type Complex Detection Mechanism Based on Energy Loss in Coupling of Two Microchannel Plates

Herein, we addressed the astronomical complex detection technique, based on the microchannel beam-guide gate-type spatial modulation and from the perspectives of position and energy resolutions. First, the mechanism, responsible for the electron beam spatialbeam-guidein microchannel photomultipliers, was theoretically analyzed. Second, the influence of the properties of the electronic optical system on the space optical transfer characteristics was investigated for desgn optimization of the complex detection device. Finally, the prototyped complex detection device was desgned and fabricated by means the microchannel beam-guide gate-type spatial modulation. The test results show that when it comes to imaging and detection dynanics in space, the newly-devloped complex detection device outperforms the one we reported previously[10].