Walker D, Clark S M, Jones R L, Cranswick L M
Lamont Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA.
J Synchrotron Radiat. 2000 Jan 1;7(Pt 1):18-21. doi: 10.1107/S0909049599014636.
A complementary pair of rapid methods for the energy calibration of solid-state detectors have been developed. Each method requires only a single measurement from either (i) a glass sample containing elements chosen to produce fluorescence lines over a suitable energy range when exposed to a polychromatic beam of X-rays, or (ii) a powder diffraction standard in the presence of diffraction slits. The fluorescent glass method has the advantage of allowing simultaneous energy calibration of a number of detectors without requiring diffraction slits. There is the potential for the glass material to be incorporated into virtually any sample holder to allow a continuous in situ calibration. Complementary observations of a powder diffraction standard allow simultaneous calibration of diffraction 2theta and monitoring of the detector for drift.
已经开发出一对用于固态探测器能量校准的快速互补方法。每种方法仅需进行一次测量,测量对象可以是以下二者之一:(i) 一种玻璃样品,该样品包含在暴露于多色X射线束时能在合适能量范围内产生荧光线的元素;(ii) 存在衍射狭缝时的粉末衍射标准物质。荧光玻璃法的优点是无需衍射狭缝就能同时对多个探测器进行能量校准。这种玻璃材料几乎有可能被纳入任何样品架中,以实现连续的原位校准。对粉末衍射标准物质的互补观测能够同时校准衍射2θ并监测探测器的漂移情况。