一种用于X射线光谱学和衍射的大孔径动态聚焦矢状单色仪。
A wide-aperture dynamically focusing sagittal monochromator for X-ray spectroscopy and diffraction.
作者信息
Bilsborrow R L, Atkinson P A, Bliss N, Dent A J, Dobson B R, Stephenson P C
机构信息
CCLRC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, UK.
出版信息
J Synchrotron Radiat. 2006 Jan;13(Pt 1):54-8. doi: 10.1107/S0909049505036903. Epub 2005 Dec 22.
A scanning dynamically focusing sagittal X-ray monochromator accepting 7 mrad of the fan from a 6 T wiggler is in routine use on beamline 16.5 (ultra-dilute spectroscopy) of the SRS at CCLRC Daresbury Laboratory, UK. The energy range covered is 7-27 keV, with a horizontal spot size of <1.1 mm FWHM. Measured monochromatic flux from a Si 220 crystal pair is 1 x 10(11) photons s(-1) (100 mA)(-1) at 9 keV. This level of flux, usually associated with an insertion device on a third-generation source, permits collection of EXAFS data on concentrations at or below 10 ppm.
一种扫描动态聚焦矢状X射线单色仪，可接收来自6T摆动器的7毫弧度扇形光束，目前在英国CCLRC达累斯伯里实验室SRS的16.5号光束线（超稀光谱）上常规使用。其覆盖的能量范围为7 - 27keV，水平光斑尺寸的半高宽小于1.1mm。在9keV时，由一对Si 220晶体测得的单色通量为1×10¹¹ 光子·秒⁻¹·(100mA)⁻¹。这种通量水平通常与第三代光源上的插入式设备相关联，能够收集浓度为10ppm或更低浓度的扩展X射线吸收精细结构（EXAFS）数据。
Zotero 插件