Patent ID: 9001968
Filing Date: 2015-04-07
Classification: G01N,G21B,G21K,Y02E

Abstract:
1. A method for characterizing spectrometric properties of bent crystal comprising: a) positioning a bent crystal that is suitable to image selected emission spectra and reflect characteristic x-ray emission spectra of a target substance disposed on a Rowland circle in the path of x-ray emissions from the target substance wherein a reflective surface of the bent crystal is disposed at approximately the Bragg angle to the path; b) exciting the target substance sufficient to generate x-ray emissions to impinge upon the bent crystal; thereupon c) capturing and recording intensity of a first preselected known narrow spectrum of the x-ray emissions as diverted by the bent crystal at an off-angle to direct reflections of x-ray emission; d) incrementally rotating the bent crystal about its reflective center of rotation; e) repeating steps b), c) and d) to build a rocking curve of x-ray reflections off-angle to the direct reflection angle; f) using the first preselected known narrow spectrum to make a rocking curve at angles far from normal incidence that characterizes the crystal at a second preselected known narrow spectrum of a lower energy level, and characterized by a larger Bragg angle, for use as an imaging optic at the second preselected known narrow spectrum at angles close to normal incidence.