A new method to do time‐resolved, x‐ray diffraction studies: The rotating crystal Laue method

• Published in: Review of Scientific Instruments 1992-01, Vol.63 (1), p.1032-1034
• Main Authors: Knapp, G. S., Beno, M. A.
• Format: Article
• Language: English
• Subjects: 440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments; ALKALINE EARTH METAL COMPOUNDS; AMINES; AMMONIUM COMPOUNDS; BARIUM COMPOUNDS; BARIUM OXIDES; BEAM BENDING MAGNETS; CHALCOGENIDES; COHERENT SCATTERING; COMPUTERIZED SIMULATION; COPPER COMPOUNDS; COPPER OXIDES; DIFFRACTION; DIFFRACTION METHODS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; Exact sciences and technology; HIGH-TC SUPERCONDUCTORS; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; LAUE METHOD; MAGNETS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; Physics; QUATERNARY COMPOUNDS; RADIATION SOURCES; RESOLUTION; ROTATING CRYSTAL METHOD; SCATTERING; SIMULATION; SUPERCONDUCTORS; SYNCHROTRON RADIATION SOURCES; TIME RESOLUTION; TIMING PROPERTIES; TRANSITION ELEMENT COMPOUNDS; X- and γ-ray instruments and techniques; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS; YTTRIUM OXIDES
• ISSN: 0034-6748; 1089-7623
• DOI: 10.1063/1.1143191

In order to achieve the ultimate time resolution of a synchrotron source we propose a new experimental technique by which time‐dependent structural changes can be monitored on the time scale of synchrotron pulse widths. Samples will be studied by a rotating crystal Laue diffraction technique where we rapidly spin the sample and observe the diffraction pattern from a broadband of incident x rays. A computer simulation is presented of the diffraction pattern time evolution using the parameters for an APS undulator of a phase change in the YBa2Cu3O7−x superconductor. We will discuss the application of this and closely related techniques at other synchrotron sources including bending magnets and insertion devices at NSLS and CHESS.