Angular dispersive diffraction using a diamond-anvil pressure cell and synchrotron X-ray source |
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| Authors: | S B Qadri R Dobbyn E F Skelton |
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| Institution: | 1. Naval Research Laboratory , Washington, D. C., 20375-5000, U.S.A.;2. National Institue of Science and Technology , Gaithersburg, MD, USA;3. Naval Research Laboratory , Washington, D. C., 20375-5000, U.S.A. |
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| Abstract: | Abstract Wavelength dispersive diffraction studies have been performed using a diamond-anvil pressure cell and bending magnet synchrotron produced radiation. A double-crystal monochromator was used to select 15 and 17 keV photons and a 80 μm diameter collimator was used to restrict the beam entering the pressure cavity. Parallelism between the incident beam and the collimator axis was assisted by computer control of the collimator. The image of the transmitted beam was observed using a Hamamatsu x-ray Vidicon and TV monitor, for this alignment. The diffracted beam was recorded on x-ray film using a double film cassette and exposure times ranged from 6 to 8 hours. Neither the exposure time nor the line width of the diffraction lines was significantly altered by replacement of the incident beam collimator with a slit system. |
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| Keywords: | Wavelength dispersive diffraction synchrotron radiation |
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