The Australian diffractometer at the Photon Factory

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dc.contributor.authorBarnea, Zen_AU
dc.contributor.authorCreagh, GCen_AU
dc.contributor.authorDavis, TJen_AU
dc.contributor.authorGarrett, RFen_AU
dc.contributor.authorJanky, Sen_AU
dc.contributor.authorStevenson, AWen_AU
dc.contributor.authorWilkins, SWen_AU
dc.date.accessioned2024-05-01T06:53:41Zen_AU
dc.date.available2024-05-01T06:53:41Zen_AU
dc.date.issued1992-01en_AU
dc.date.statistics2024-04-16en_AU
dc.descriptionPhysical copy held at DDC: 539.735/19. Also accessible at: https://doi.org/10.1063/1.1143202en_AU
dc.description.abstractOutlined are design features of a versatile high‐resolution two‐axis diffractometer that is being constructed for operation at the Photon Factory as an Australian national facility. The instrument features optional use of multiple‐imaging plates on a translating cassette to allow rapid recording of an almost complete range of data covering both the high‐angle and small‐angle scattering regime or alternatively the use of electronic detectors. The instrument will be capable of operation in various modes including the following: (i) high‐resolution powder diffraction with single‐channel counter and crystal analyzer, (ii) high‐resolution, high‐speed powder diffraction in the Debye–Scherrer mode with imaging plates as recording medium, either stationary or translating (for time‐dependent studies), (iii) small‐angle x‐ray scattering with imaging plates as recording medium, (iv) protein crystallography in screenless Weissenberg mode, and (v) two‐ or three‐axis single‐crystal diffractometry. The salient features of the instrument are the use of a double‐crystal sagittal focusing monochromator as primary monochromator together with the optional use of a condensing–collimating channel‐cut (CCCC) monochromator or other channel‐cut monochromator as secondary monochromator. The use of a CCCC monochromator enables fine tuning of beam position on sample, harmonic suppression, beam‐condensation, and variation of wavelength bandpass. Further features include the use of high‐precision incremental encoders on both axes, together with the capability of operating the whole diffractometer, including secondary monochromator and detectors, in vacuum of order 10−3 Torr in order to reduce absorption and parasitic scattering, and the use of a large camera radius (approximately 0.57 m) for the imaging plate cassette in order to increase angular resolution and signal to noise. © 1992 American Institute of Physics.en_AU
dc.identifier.booktitleProceedings of the 4th International Conference on Synchrotron Radiation Instrumentation: 15-19 July 1991, Chester, United Kingdom,en_AU
dc.identifier.citationBarnea, Z., Creagh, D. C., Davis, T. J., Garrett, R. F., Janky, S., Stevenson, A. W., & Wilkins, S. W. (1992). The Australian diffractometer at the Photon Factory. Paper presented to the 4th International Conference on Synchrotron Radiation Instrumentation, 15-19 July 1991, Chester, United Kingdom. Proceedings of the 4th International Conference on Synchrotron Radiation Instrumentation, 15-19 July 1991, Chester, United Kingdom, (pp. 1069-1072).en_AU
dc.identifier.conferenceenddate1991-07-19en_AU
dc.identifier.conferencename4th International Conference on Synchrotron Radiation Instrumentationen_AU
dc.identifier.conferenceplaceChester, United Kingdomen_AU
dc.identifier.conferencestartdate1991-07-15en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleReview of Scientific Instrumentsen_AU
dc.identifier.placeofpublicationNew York, United States of Americaen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15566en_AU
dc.identifier.volume63en_AU
dc.language.isoenen_AU
dc.publisherAmerican Institute of Physicsen_AU
dc.subjectAustralian organizationsen_AU
dc.subjectDiffractometersen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectMonochromatorsen_AU
dc.subjectDebye-Scherrer methoden_AU
dc.subjectCrystalsen_AU
dc.subjectWeierstrass Functionsen_AU
dc.subjectScatteringen_AU
dc.titleThe Australian diffractometer at the Photon Factoryen_AU
dc.typeConference Paperen_AU
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