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Abstract

Uranium and thorium have sufficiently low radioactive dose rates to allow their study at synchrotrons and neutron facilities. Correspondingly, numerous compounds of these 2 actinides have been studied under pressure by synchrotron X-ray diffraction (XRD). The maximum pressures reached were of the order of 60-80 GPa, and 300 GPa in one case.

The situation is much more difficult for all other actinides. Their high level of radioactivity has up to now prevented their study at synchrotrons, except in a few special cases. In contrast, all actinide metals are available in sufficient quantities, and a large number of compounds of highly radioactive actinides, have been studied in high-pressure laboratory facilities. Recent examples of in situ high pressure X-ray diffraction work will be described.

Additional information

Authors: BENEDICT U ET AL, JRC Karlsruhe (DE);OLSEN J S, Niels Bohr Institute, Copenhagen (DK);GERWARD L, Technical University of Denmark, Department of Physics, Lyngby (DK);HAIRE R G, Oak Ridge National Laboratory, Transuranium Research Laboratory (US);VOHRA Y K ET AL, University of Alabama at Birmingham, Department of Physics (US)
Bibliographic Reference: Paper presented: 4th Workshop of the IUCc High Pressure Group on synchrotron and Neutron Sources, Tsukuba (JP), March 22-24, 1995
Availability: Available from (1) as Paper EN 39502 ORA
Record Number: 199610183 / Last updated on: 1996-03-01
Category: PUBLICATION
Original language: en
Available languages: en