Neutron scattering from liquid {sup 3}He at intermediate to large wavevectors
Journal Article
·
· Journal of Low Temperature Physics
- Keele Univ. (United Kingdom)
- PTB, Braunschweig (Germany); and others
Neutron inelastic scattering experiments have been performed on liquid {sup 3}He at saturated vapour pressure and T = 1.4 K covering a wide range of energy and momentum transfers (9 {le} Q {le} 20 {angstrom}{sup -1}). Allowing for the very strong {sup 3}He neutron absorption, the data is of excellent quality and it has been analysed to extract information on the scattering function widths, peak positions and single particle kinetic energies. It is found that there are no width oscillations with momentum transfer and that the average atomic kinetic energy is approximately 20% lower than theoretical predictions, in agreement with previous neutron scattering results. A new method of analysis aimed at extracting both the atomic momentum distribution and final state effects is also presented and the results discussed in the light of current theory.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 175467
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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