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Scintillator Detectors for Scanning Transmission X-ray Microscopes at the Advanced Light Source

机译:用于在高级光源扫描变速器X射线显微镜的闪烁器探测器

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The choice of x-ray detectors presents a challenge for scanning transmission x-ray microscopes (STXM). The ultimate detector for the ALS STXMs should have a very high efficiency over a wide energy range, single photon counting capabilities up to 1GHz, high rejection of red laser light, fast response, and work in both vacuum and at atmospheric pressure. The results of an investigation using a photomultiplier tube (PMT) with a number of different scintillators are presented. The PMT is used in photon counting and analog modes. Scintillators used for this study include commercially available phosphor powders and various single crystals.
机译:X射线检测器的选择呈现扫描传输X射线显微镜(STXM)的挑战。 ALS STXMS的最终检测器应在宽的能量范围内具有非常高的效率,单光子计数能力高达1GHz,高拒绝红色激光,快速响应,以及在真空和大气压下工作。呈现了使用具有多种不同闪烁体的光电倍增管(PMT)的研究的结果。 PMT用于光子计数和模拟模式。用于该研究的闪烁体包括市售的磷光体粉末和各种单晶。

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