The European Physical Journal Plus

, 127:76

High-pressure and high-temperature neutron reflectometry cell for solid-fluid interface studies

  • P. Wang
  • A. H. Lerner
  • M. Taylor
  • J. K. Baldwin
  • R. K. Grubbs
  • J. Majewski
  • D. D. Hickmott
Regular Article

DOI: 10.1140/epjp/i2012-12076-0

Cite this article as:
Wang, P., Lerner, A.H., Taylor, M. et al. Eur. Phys. J. Plus (2012) 127: 76. doi:10.1140/epjp/i2012-12076-0

Abstract

A new high pressure-temperature (P -T Neutron Reflectometry (NR) cell developed at Los Alamos National Laboratory (LANL) is described that significantly extends the capabilities of solid/fluid interface investigations up to 200MPa ( \(\ensuremath \sim 30000\) psi) and 200 ° C. The cell's simple aluminum construction makes it light and easy to operate while thinned neutron windows allow up to 74% neutron transmission. The wide-open neutron window geometry provides a maximum theoretical \(\ensuremath Q_{{\rm z}}\) range of 0.31Å-1. Accurate T and P controls are integrated on the cell's control panel. Built-in powder wells provide the ability to saturate fluids with reactive solids, producing aqueous species and/or decomposing into gaseous phases. The cell is designed for samples up to 50.8mm in diameter and 10.0mm in thickness. An experiment investigating the high P -T corrosion behavior of aluminum on LANL's Surface ProfilE Analysis Reflectometer (SPEAR) is presented, demonstrating the functioning and capability of the cell. Finally, outlooks on high P -T NR applications and perspectives on future research are discussed.

Copyright information

© Società Italiana di Fisica and Springer 2012

Authors and Affiliations

  • P. Wang
    • 1
  • A. H. Lerner
    • 2
  • M. Taylor
    • 1
  • J. K. Baldwin
    • 3
  • R. K. Grubbs
    • 4
  • J. Majewski
    • 1
  • D. D. Hickmott
    • 2
  1. 1.Los Alamos Neutron Science CenterLos Alamos National LaboratoryLos AlamosUSA
  2. 2.Earth and Environmental Sciences DivisionLos Alamos National LaboratoryLos AlamosUSA
  3. 3.Center for Integrated NanotechnologiesLos Alamos National LaboratoryLos AlamosUSA
  4. 4.Sandia National LaboratoriesLivermore, CaliforniaUSA