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Title: Novel diamond cells for neutron diffraction using multi-carat CVD anvils

Abstract

Traditionally, neutron diffraction at high pressure has been severely limited in pressure because low neutron flux required large sample volumes and therefore large volume presses. At the high-flux Spallation Neutron Source at the Oak Ridge National Laboratory, we have developed in this paper new, large-volume diamond anvil cells for neutron diffraction. The main features of these cells are multi-carat, single crystal chemical vapor deposition diamonds, very large diffraction apertures, and gas membranes to accommodate pressure stability, especially upon cooling. A new cell has been tested for diffraction up to 40 GPa with an unprecedented sample volume of ~0.15 mm 3. High quality spectra were obtained in 1 h for crystalline Ni and in ~8 h for disordered glassy carbon. Finally, these new techniques will open the way for routine megabar neutron diffraction experiments.

Authors:
 [1];  [2]; ORCiD logo [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Carnegie Inst. of Washington, Washington, DC (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); ORNL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1394410
Alternate Identifier(s):
OSTI ID: 1375502; OSTI ID: 1399552
Grant/Contract Number:  
AC05-00OR22725; SC0001057; ­SC0001057
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 88; Journal Issue: 8; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; diamond; neutron diffraction; biological physics; metalloids; chemical compounds

Citation Formats

Boehler, R., Molaison, J. J., and Haberl, B. Novel diamond cells for neutron diffraction using multi-carat CVD anvils. United States: N. p., 2017. Web. doi:10.1063/1.4997265.
Boehler, R., Molaison, J. J., & Haberl, B. Novel diamond cells for neutron diffraction using multi-carat CVD anvils. United States. doi:10.1063/1.4997265.
Boehler, R., Molaison, J. J., and Haberl, B. Thu . "Novel diamond cells for neutron diffraction using multi-carat CVD anvils". United States. doi:10.1063/1.4997265. https://www.osti.gov/servlets/purl/1394410.
@article{osti_1394410,
title = {Novel diamond cells for neutron diffraction using multi-carat CVD anvils},
author = {Boehler, R. and Molaison, J. J. and Haberl, B.},
abstractNote = {Traditionally, neutron diffraction at high pressure has been severely limited in pressure because low neutron flux required large sample volumes and therefore large volume presses. At the high-flux Spallation Neutron Source at the Oak Ridge National Laboratory, we have developed in this paper new, large-volume diamond anvil cells for neutron diffraction. The main features of these cells are multi-carat, single crystal chemical vapor deposition diamonds, very large diffraction apertures, and gas membranes to accommodate pressure stability, especially upon cooling. A new cell has been tested for diffraction up to 40 GPa with an unprecedented sample volume of ~0.15 mm3. High quality spectra were obtained in 1 h for crystalline Ni and in ~8 h for disordered glassy carbon. Finally, these new techniques will open the way for routine megabar neutron diffraction experiments.},
doi = {10.1063/1.4997265},
journal = {Review of Scientific Instruments},
number = 8,
volume = 88,
place = {United States},
year = {Thu Aug 17 00:00:00 EDT 2017},
month = {Thu Aug 17 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 6 works
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Works referenced in this record:

Very high growth rate chemical vapor deposition of single-crystal diamond
journal, September 2002

  • Yan, C.-s.; Vohra, Y. K.; Mao, H.-k.
  • Proceedings of the National Academy of Sciences, Vol. 99, Issue 20, p. 12523-12525
  • DOI: 10.1073/pnas.152464799