No evidence for large-scale proton ordering in Antarctic ice from powder neutron diffraction

We have examined a sample of 3000 year old Antarctic ice, collected at the Kohnen Station, by time-of-flight powder neutron diffraction to test the hypothesis of Fukazawa et al. [e.g., Ann. Glaciol. 31, 247 (2000)] that such ice may be partially proton ordered. Great care was taken to keep our sampl...

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Bibliographic Details
Main Authors: Fortes, AD, Wood, IG, Grigoriev, D, Alfredsson, M, Kipfstuhl, S, Knight, KS, Smith, RI
Format: Article in Journal/Newspaper
Language:unknown
Published: AMER INST PHYSICS 2004
Subjects:
D2O ICE
SCATTERING MEASUREMENTS
DIELECTRIC-PROPERTIES
PHASE-TRANSITION
DOME-FUJI
IH
XI
KOH
RAMAN
CORE
Antarctic
Dome Fuji
Kohnen
Kohnen Station
Antarc*
Online Access:http://discovery.ucl.ac.uk/100077/
Description
Summary:We have examined a sample of 3000 year old Antarctic ice, collected at the Kohnen Station, by time-of-flight powder neutron diffraction to test the hypothesis of Fukazawa et al. [e.g., Ann. Glaciol. 31, 247 (2000)] that such ice may be partially proton ordered. Great care was taken to keep our sample below the proposed ordering temperature (237 K) at all times, but we did not observe any evidence of proton ordering. (C) 2004 American Institute of Physics.

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