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Title: Next-generation diamond cell and applications to single-crystal neutron diffraction

Journal Article · · Review of Scientific Instruments
DOI: https://doi.org/10.1063/1.5031454 · OSTI ID:1474626
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1];  [3]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division, Neutron Sciences Directorate
  2. 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
  3. 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) (SC-22)
Grant/Contract Number:
AC05-00OR22725; SC0001057
OSTI ID:
1474626
Alternate ID(s):
OSTI ID: 1471797
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 89; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

Development of cubic anvil type high pressure apparatus for neutron diffraction journal July 2019
A nano-polycrystalline diamond anvil cell with bulk metallic glass cylinder for single-crystal neutron diffraction journal December 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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