arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1603.04493physics.ins-det
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光子计数探测器中的高量子效率S-20光电阴极

High quantum efficiency S-20 photocathodes in photon counting detectors

Dmitry A. Orlov, Jeff DeFazio, Serge Duarte Pinto, Rene Glazenborg, Emilie Kernen

摘要:

基于传统的S-20工艺,开发了一系列新的高量子效率(QE)光电阴极,可以专门调谐用于光谱的紫外线,蓝色或绿色区域。在最大响应时,QE值超过30%,并且发现在室温下暗计数率低至30 Hz/cm $^2$。这种特性与快速时间响应的组合使得这些光电阴极非常适合应用于光子计数探测器,其用MCP光电倍增管来说明,用于单个和多个光电子检测。

英文摘要:

Based on conventional S-20 processes, a new series of high quantum efficiency (QE) photocathodes has been developed that can be specifically tuned for use in the ultraviolet, blue or green regions of the spectrum. The QE values exceed 30% at maximum response, and the dark count rate is found to be as low as 30 Hz/cm$^2$ at room temperature. This combination of properties along with a fast temporal response makes these photocathodes ideal for application in photon counting detectors, which is illustrated with an MCP photomultiplier tube for single and multi-photoelectron detection.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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