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Chemical method to increase extreme ultraviolet microchanell-plate quantum efficiency. II. Analysis and optimization

机译:化学方法可提高极紫外微通道板的量子效率。二。分析与优化

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Enhancement of the extreme ultraviolet quantum detection efficiency (QDE) of microchannel plate (MCP) detectors by use of a wet chemical method is examined. It is shown that the chemical process of ion exchange, in addition to physical processes that increase surface roughness and decrease surface density, augments the secondary electron emission coefficient, which in turn increases the quantum detection efficiency of the input MCP. The method has been demonstrated with nitric acid, acetic acid, or water used as the active reactant. By monitoring and optimizing the ion-exchange process, we achieved a 2.6-4.4 increase in the MCP QDE from 1216 to 304 Angstrom, respectively, with an absolute QDE of approximately 50% at 304 Angstrom. (C) 2003 Optical Society of America. [References: 32]
机译:研究了通过使用湿化学方法提高微通道板(MCP)检测器的极紫外量子检测效率(QDE)。结果表明,离子交换的化学过程,除了增加表面粗糙度和降低表面密度的物理过程之外,还增加了二次电子发射系数,进而提高了输入MCP的量子检测效率。已经用硝酸,乙酸或水作为活性反应物证明了该方法。通过监视和优化离子交换过程,我们使MCP QDE分别从1216到304埃增加了2.6-4.4,在304埃处的绝对QDE约为50%。 (C)2003年美国眼镜学会。 [参考:32]

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