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arXiv 0902.2305physics.ins-det
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用于飞行时间研究的UV LED快脉冲光电子源

A UV LED-based fast-pulsed photoelectron source for time-of-flight studies

K. Valerius, M. Beck, H. Arlinghaus, J. Bonn, V. M. Hannen, H. Hein, B. Ostrick, S. Streubel, Ch. Weinheimer, M. Zboril

摘要:

我们报告光谱和飞行时间测量使用18千电子伏的快速脉冲光电子源的可调强度,范围从单光电子每脉冲到5光电子每微秒的脉冲重复率高达10 kHz。通过在深紫外(或UV-C)区域中以kHz频率切换中心输出波长为265 nm和257 nm的发光二极管来产生长度在40 ns和40微秒之间的短脉冲。这样的光电子源可以成为测试高分辨率静电光谱仪性能的有用校准设备,就像当前中微子质量搜索中使用的那样。

英文摘要:

We report on spectroscopy and time-of-flight measurements using an 18 keV fast-pulsed photoelectron source of adjustable intensity, ranging from single photoelectrons per pulse to 5 photoelectrons per microsecond at pulse repetition rates of up to 10 kHz. Short pulses between 40 ns and 40 microseconds in length were produced by switching light emitting diodes with central output wavelengths of 265 nm and 257 nm, in the deep ultraviolet (or UV-C) regime, at kHz frequencies. Such photoelectron sources can be useful calibration devices for testing the properties of high-resolution electrostatic spectrometers, like the ones used in current neutrino mass searches.

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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