Ultraviolet and vacuum-ultraviolet detector-based radiometry at the Metrology Light Source
Ultraviolet and vacuum-ultraviolet detector-based radiometry at the Metrology Light Source
复制标题
计量光源中基于紫外线和真空紫外线探测器的辐射测量
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
G. Ulm
中科院分区：
文献类型：
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作者：
A. Gottwald;U. Kroth;M. Richter;Hendrik Schöppe;G. Ulm
计量光源（Metrology Light Source，MLS）是德国联邦物理技术研究所（Physikalisch-Technische Bundesanstalt）的一个低能电子储存环。它针对从太赫兹到极紫外光谱范围内的基本辐射测量和辐射测量应用进行了优化。作为基本任务之一，基于探测器的辐射测量以低温电替代辐射计作为主要探测器标准来执行。对于40和400纳米之间的光谱范围，随着2008年初在微波着陆系统开始用户操作，探测器校准设施从BESSY II储存环的旧址转移。结合一个专门的垂直入射单色光束线，光电探测器的光谱响应度可以确定的相对不确定度范围从1.1%下降到0.2%，在紫外和真空紫外波长范围。光束线有几个选项，以尽量减少高阶效应，并配备可靠的强度监测系统。光束线特性的广泛表征导致了详细的不确定性预算。
The Metrology Light Source (MLS) is a low-energy electron storage ring owned by the Physikalisch-Technische Bundesanstalt. It is optimized for basic radiometry and radiometric applications in the wavelength range from the terahertz to the extreme-ultraviolet spectral regime. As one of the basic tasks, detector-based radiometry is performed with a cryogenic electrical substitution radiometer as a primary detector standard. For the spectral range between 40 and 400 nm, the detector calibration facility was moved from its former site at the BESSY II storage ring with the beginning of user operation at the MLS in early 2008. In combination with a dedicated normal-incidence monochromator beamline, the spectral responsivities of photodetectors can be determined with relative uncertainties ranging from 1.1% down to 0.2% in the ultraviolet and vacuum-ultraviolet wavelength range. The beamline has several options to minimize high-order effects and comes with reliable intensity monitoring systems. Extensive characterization of the beamline properties has led to a detailed uncertainty budget.