Levitation apparatus for neutron diffraction investigations on high temperature liquids
- CNRS-CRMHT, 1d avenue de la Recherche Scientifique, 45071 Orleans Cedex 2 (France)
We describe a new high temperature environment based on aerodynamic levitation and laser heating designed for neutron scattering experiments up to 3000 deg. C. The sample is heated to the desired temperature with three CO{sub 2} lasers from different directions in order to obtain a homogeneous temperature distribution. The apparent temperature of the sample is measured with an optical pyrometer, and two video cameras are employed to monitor the sample behavior during heating. The levitation setup is enclosed in a vacuum-tight chamber, enabling a high degree of gas purity and a reproducible sample environment for structural investigations on both oxide and metallic melts. High-quality neutron diffraction data have been obtained on liquid Y{sub 3}Al{sub 5}O{sub 12} and ZrNi alloy for relatively short counting times (1.5 h)
- OSTI ID:
- 20779370
- Journal Information:
- Review of Scientific Instruments, Vol. 77, Issue 5; Other Information: DOI: 10.1063/1.2200756; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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