Image charge multi-role and function detectors
Image charge multi-role and function detectors
复制标题
图像电荷多功能和功能探测器
DOI：
10.1016/j.nima.2009.01.179
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发表时间：
2009
影响因子：
1.4
通讯作者：
J. Howorth
中科院分区：
文献类型：
--
作者：
J. Milnes;J. Lapington;O. Jagutzki;J. Howorth
与微通道板成像管一起使用的图像电荷技术通过用于将电子图像读出与检测器隔离而提供若干操作和实际益处。检测器和读出器之间的简单介电界面提供真空隔离，并且不需要真空电馈电。由于读出器与探测器在机械上是分离的，因此通过将其连接到不同的读出设备和电子设备上，可以简单地针对各种应用优化通用设计的图像管。我们目前的成像性能的结果，使用一个单一的图像管与各种读出设备适合于不同的应用：（a）四电极电荷划分四楔阳极，优化光子计数模式中的最佳空间分辨率。(b)交叉延迟线阳极，实现更高的计数率，并有可能区分近重合事件，以及优于1ns的事件定时分辨率。(c)多阳极读出器连接到多通道示波器，用于快速光脉冲的模拟测量，或者连接到多通道时间相关单光子计数（TCSPC）卡。
The image charge technique used with microchannel plate imaging tubes provides several operational and practical benefits by serving to isolate the electronic image readout from the detector. The simple dielectric interface between detector and readout provides vacuum isolation and no vacuum electrical feed-throughs are required. Since the readout is mechanically separate from the detector, an image tube of generic design can be simply optimised for various applications by attaching it to different readout devices and electronics. We present imaging performance results using a single image tube with a variety of readout devices suited to differing applications: (a) A four electrode charge division tetra wedge anode, optimised for best spatial resolution in photon counting mode. (b) A cross delay line anode, enabling higher count rate, and the possibility of discriminating near co-incident events, and an event timing resolution of better than 1ns. (c) A multi-anode readout connected, either to a multi-channel oscilloscope for analogue measurements of fast optical pulses, or alternately, to a multi-channel time correlated single photon counting (TCSPC) card.