Mendenhall Marcus H, Henins Albert, Hudson Lawrence T, Szabo Csilla I, Windover Donald, Cline James P
NIST, 100 Bureau Drive, Gaithersburg, MD, 20899 USA, Official contribution of the National Institute of Standards and Technology; not subject to copyright in the United States.
Theiss Research, 7411 Eads Ave, La Jolla, CA 92037, United States.
J Phys B At Mol Opt Phys. 2017 Jun;50(11). doi: 10.1088/1361-6455/aa6c4a. Epub 2017 May 12.
The structure of the X-ray emission lines of the Cu K complex has been remeasured on a newly commissioned instrument, in a manner directly traceable to the Système Internationale definition of the meter. In this measurement, the region from 8000 eV to 8100 eV has been covered with a highly precise angular scale, and well-defined system efficiency, providing accurate wavelengths and relative intensities. This measurement updates the standard multi-Lorentzian-fit parameters from Härtwig, Hölzer, , and is in modest disagreement with their results for the wavelength of the K line when compared via quadratic fitting of the peak top; the intensity ratio of K to K agrees within the combined error bounds. However, the position of the fitted top of K is very sensitive to the fit parameters, so it is not believed to be a robust value to quote without further qualification. We also provide accurate intensity and wavelength information for the so-called K "satellite" complex. Supplementary data is provided which gives the entire shape of the spectrum in this region, allowing it to be used directly in cases where simplified, multi-Lorentzian fits to it are not sufficiently accurate.
利用一台新启用的仪器，以可直接追溯到国际单位制米定义的方式，对铜K系X射线发射线的结构进行了重新测量。在此次测量中，8000电子伏特至8100电子伏特的区域采用了高精度角标度和明确的系统效率进行覆盖，从而提供了精确的波长和相对强度。此次测量更新了哈尔特维希、霍尔泽等人的标准多洛伦兹拟合参数，并且通过对峰顶进行二次拟合比较时，对于K线波长，此次测量结果与他们的结果存在一定分歧；K与K的强度比在综合误差范围内一致。然而，K拟合峰顶的位置对拟合参数非常敏感，因此如果没有进一步限定，认为引用该值并不可靠。我们还提供了所谓K“卫星”复合体的精确强度和波长信息。提供了补充数据，给出了该区域光谱的完整形状，以便在对其进行简化的多洛伦兹拟合不够准确的情况下直接使用。
