首页> 外文会议>Conference on X-Ray and Gamma-Ray Instrumentation for Astronomy XI 2-4 August 2000 San Diego, USA >Silicon Microchannel Plates: Initial Results for Photon Counting Detectors
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Silicon Microchannel Plates: Initial Results for Photon Counting Detectors

机译:硅微通道板:光子计数检测器的初步结果

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The emergence of Silicon based microchannel plates (MCP's) has been awaited for a number of years, with many proposed advantages over standard glass MCPs for space-based detectors. Si should have a ver low inherent background (<0.01 events sec~(-1) cm~(-2)), as well as being a low Z element with low stopping power for x, gamma nd cosmic rays. The surface is oxidied and can be baked to very high temperatures (>800 deg C), and will not react with photocathodes deposited on the surface. This could potentially allow opaque photocathodes,w ith their higher resolutiona nd efficiency, to be used in the near UV/optical bands. Since the microchannel positions are determined photolithographically, the pattern will be uniform and coherent, resulting in more uniform flat fields and less differential nonlinearity in the spatial response.
机译:硅基微通道板(MCP's)的出现已经等待了很多年,与用于天基探测器的标准玻璃MCP相比,它具有许多建议的优势。 Si应具有非常低的固有背景(<0.01个事件秒〜(-1)cm〜(-2)),并且是一种低Z元素,对x,γ和宇宙射线具有较低的阻止能力。表面被氧化,可以烘烤到很高的温度(> 800摄氏度),并且不会与沉积在表面上的光电阴极反应。这可能潜在地允许不透明的光电阴极,以其较高的分辨率和效率,可用于近紫外/光学波段。由于微通道位置是通过光刻法确定的,因此图案将是均匀且连贯的,从而导致更均匀的平坦场和较少的空间响应微分非线性。

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