Next-generation diamond cell and applications to single-crystal neutron diffraction
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division, Neutron Sciences Directorate
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division, Neutron Sciences Directorate; North Carolina State Univ., Raleigh, NC (United States). Department of Molecular and Structural Biochemistry
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division, Neutron Sciences Directorate; Carnegie Institution for Sciences, Washington, DC (United States). Geophysical Laboratory
In this paper, a diamond cell optimized for single-crystal neutron diffraction is described. It is adapted for work at several of the single-crystal diffractometers of the Spallation Neutron Source and the High Flux Isotope Reactor at the Oak Ridge National Laboratory (ORNL). A simple spring design improves portability across the facilities and affords load maintenance from offline pressurization and during temperature cycling. Compared to earlier prototypes, pressure stability of polycrystalline diamond (Versimax®) has been increased through double-conical designs and ease of use has been improved through changes to seat and piston setups. These anvils allow ~30%-40% taller samples than possible with comparable single-crystal anvils. Hydrostaticity and the important absence of shear pressure gradients have been established with the use of glycerin as a pressure medium. Large single-crystal synthetic diamonds have also been used for the first time with such a clamp-diamond anvil cell for pressures close to 20 GPa. The cell is made from a copper beryllium alloy and sized to fit into ORNL’s magnets for future ultra-low temperature and high-field studies. Finally, we show examples from the Spallation Neutron Source’s SNAP and CORELLI beamlines and the High Flux Isotope Reactor’s HB-3A and IMAGINE beamlines.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE
- Grant/Contract Number:
- AC05-00OR22725; SC0001057
- OSTI ID:
- 1474626
- Alternate ID(s):
- OSTI ID: 1471797
- Journal Information:
- Review of Scientific Instruments, Vol. 89, Issue 9; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
A nano-polycrystalline diamond anvil cell with bulk metallic glass cylinder for single-crystal neutron diffraction
|
journal | December 2019 |
Development of cubic anvil type high pressure apparatus for neutron diffraction
|
journal | July 2019 |
DEMAND, a Dimensional Extreme Magnetic Neutron Diffractometer at the High Flux Isotope Reactor
|
journal | December 2018 |
Files describing work on alternating blade 3D printed collimator
|
dataset | January 2023 |
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