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A novel set-up for fast muon-spin-rotation experiments

机译:快速μ自旋旋转实验的新颖装置

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摘要

A novel set-up for fast muon-spin-rotation experiments with an effective time resolution of (150 +/- 10) ps (full-width at half-maximum) of the 'prompt peak' is described. A new method of extending the histogram length of the hitherto existing data-acquisition system allows the use of the full time range of the clock with a histogram length of approximately 5 mu s and pile-up and second-muon gates with the same length. The whole electronics consists of only four NIM modules and an EG & G Ortec 'Picosecond Time Analyzer' mod. 9308 connected to a personal computer. The performance of the novel spectrometer is demonstrated in measurements of the hyperfine precession frequency of muonium in fused quartz, liquid water, and different silsesquioxanes at room temperature. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 5]
机译:描述了一种新型的快速muon自旋旋转实验装置,其有效时间分辨率为“提示峰”的(150 +/- 10)ps(半峰全宽)。一种扩展迄今为止现有数据采集系统直方图长度的新方法,允许使用直方图长度大约为5 s s的时钟的整个时间范围,以及具有相同长度的堆积门和第二μon门。整个电子设备仅包含四个NIM模块和一个EG&G Ortec“皮秒时间分析器” mod。 9308连接到个人计算机。新型光谱仪的性能在室温下测量熔融石英,液态水和不同倍半硅氧烷中mu的超精细进动频率时得到了证明。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:5]

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