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Title: Fast identification of mineral inclusions in diamond at GSECARS using synchrotron X-ray microtomography, radiography and diffraction

Journal Article · · Journal of Synchrotron Radiation (Online)
 [1]; ORCiD logo [1];  [2]; ORCiD logo [3];  [1];  [2];  [4];  [4]; ORCiD logo [5];  [3]
  1. Northwestern Univ., Evanston, IL (United States). Dept. of Earth and Planetary Sciences
  2. Univ. of Hawaii, Honolulu, HI (United States). Hawaii Inst. of Geophysics and Planetology
  3. Univ. of Alberta, Edmonton, AB (Canada). Dept. of Earth and Atmospheric Sciences
  4. The Univ. of Chicago, Chicago, IL (United States). Center for Advanced Radiation Sources
  5. Carnegie Inst. for Science, Washington, D.C. (United States). Dept. of Terrestrial Magnetism

Mineral inclusions in natural diamond are widely studied for the insight that they provide into the geochemistry and dynamics of the Earth's interior. A major challenge in achieving thorough yet high rates of analysis of mineral inclusions in diamond derives from the micrometre-scale of most inclusions, often requiring synchrotron radiation sources for diffraction. Centering microinclusions for diffraction with a highly focused synchrotron beam cannot be achieved optically because of the very high index of refraction of diamond. A fast, high-throughput method for identification of micromineral inclusions in diamond has been developed at the GeoSoilEnviro Center for Advanced Radiation Sources (GSECARS), Advanced Photon Source, Argonne National Laboratory, USA. Diamonds and their inclusions are imaged using synchrotron 3D computed X-ray microtomography on beamline 13-BM-D of GSECARS. The location of every inclusion is then pinpointed onto the coordinate system of the six-circle goniometer of the single-crystal diffractometer on beamline 13-BM-C. Because the bending magnet branch 13-BM is divided and delivered into 13-BM-C and 13-BM-D stations simultaneously, numerous diamonds can be examined during coordinated runs. The fast, high-throughput capability of the methodology is demonstrated by collecting 3D diffraction data on 53 diamond inclusions from Juína, Brazil, within a total of about 72 h of beam time.

Research Organization:
George Washington Univ., Washington, DC (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
Grant/Contract Number:
NA0003858; FG0294ER14466; AC02-06CH11357
OSTI ID:
1617941
Alternate ID(s):
OSTI ID: 1574022
Journal Information:
Journal of Synchrotron Radiation (Online), Vol. 26, Issue 5; ISSN 1600-5775
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Figures / Tables (7)