On intensities in high pressure neutron powder diffraction using single and polycrystalline diamond anvils: small versus large sample volumes

ABSTRACT

We report a quantitative comparison of measured intensities of neutron powder diffraction data collected in a single-crystal diamond anvil cell and in large-volume sintered diamond anvils. As expected from the difference in sample volumes, the latter provides 1–2 orders of magnitude higher intensities, depending on the anvil material. The remaining differences are due to effects of absorption and angular aperture.

KEYWORDS:

• High pressure
• neutrons
• diamond anvil cell
• Paris-Edinburgh cell

Disclosure statement

No potential conflict of interest was reported by the authors.

Acknowledgments

The authors acknowledge the useful discussion with Steve Hull (ISIS,STFC) and are grateful for commissioning beamtime made available by STFC, ISIS.

ORCID

Craig L. Bull http://orcid.org/0000-0002-5170-6674