title: An instrument for combining x-ray multiple diffraction and x-ray topographic imaging for examining crystal microcrystallography and perfection.
abstract: Diffraction imaging using x-ray topography (XRT) and x-ray multiple diffraction (XRMD) provide valuable tools for examining the growth defects in crystals and the distributions from ideal lattice symmetry (microcrystallography). The topographic x-ray multiple diffraction microprobe (TMDM) combines the complementary aspects of both techniques enabling XRT and XRMD studies within the same instrument providing a useful resource for the structural characterization of materials that are not very stable in vacuum and electron beam environments. The design of the TMDM instrument is described together with data taken on GaAs (001) and potassium dihydrogen phosphate (001).
authors.affiliation: Institute of Particle Science and Engineering, School of Process, Environmental and Materials Engineering, The University of Leeds, Leeds LS2 9JT, United Kingdom.
authors.forename: X
authors.initials: X
authors.lastname: Lai
authors.forename: C Y
authors.initials: CY
authors.lastname: Ma
authors.forename: K J
authors.initials: KJ
authors.lastname: Roberts
authors.forename: L P
authors.initials: LP
authors.lastname: Cardoso
authors.forename: A O
authors.initials: AO
authors.lastname: dos Santos
authors.forename: D
authors.initials: D
authors.lastname: Bogg
authors.forename: M C
authors.initials: MC
authors.lastname: Miller