Buy article online - an online subscription or single-article purchase is required to access this article.
research papers
A new diffraction technique based on a wide-energy-bandpass X-ray beam in connection with lock-in detection for diffraction studies of crystals subjected to external perturbations has been developed. The broad-energy-bandpass beam is obtained by combining a wiggler or bending-magnet source with a curved Si monochromator in Laue geometry. This new technique has been applied in diffraction experiments on single crystals in external electric fields. Both the speed and accuracy of the measurements are increased by more than two orders of magnitude compared with conventional methods.