Simultaneous measurement of lithium and fluorine momentum in 7LiF.
We present momentum widths and mean kinetic energies of lithium and fluorine in (7)LiF, as determined simultaneously from deep inelastic neutron scattering (DINS) measurements. Experimental data across a temperature range from 4 to 300 K are presented, and these results compared to those calculated...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2012
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| _version_ | 1797054801516691456 |
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| author | Seel, A Ceriotti, M Edwards, P Mayers, J |
| author_facet | Seel, A Ceriotti, M Edwards, P Mayers, J |
| author_sort | Seel, A |
| collection | OXFORD |
| description | We present momentum widths and mean kinetic energies of lithium and fluorine in (7)LiF, as determined simultaneously from deep inelastic neutron scattering (DINS) measurements. Experimental data across a temperature range from 4 to 300 K are presented, and these results compared to those calculated using a quasi-harmonic density-functional approach. In all cases, measured momentum widths are seen to be within approximately 5% of those calculated, despite the very low scattering cross sections of both (7)Li and (19)F. This is the first determination and comparison with theory of such simultaneous measurements for nuclei of mass > 4 amu, and demonstrates the implementation of the DINS method in its current form as a mass-selective neutron spectroscopy. |
| first_indexed | 2024-03-06T19:02:23Z |
| format | Journal article |
| id | oxford-uuid:13f86939-f56f-4140-820c-3011fa9e1aa4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:02:23Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:13f86939-f56f-4140-820c-3011fa9e1aa42022-03-26T10:16:57ZSimultaneous measurement of lithium and fluorine momentum in 7LiF.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:13f86939-f56f-4140-820c-3011fa9e1aa4EnglishSymplectic Elements at Oxford2012Seel, ACeriotti, MEdwards, PMayers, JWe present momentum widths and mean kinetic energies of lithium and fluorine in (7)LiF, as determined simultaneously from deep inelastic neutron scattering (DINS) measurements. Experimental data across a temperature range from 4 to 300 K are presented, and these results compared to those calculated using a quasi-harmonic density-functional approach. In all cases, measured momentum widths are seen to be within approximately 5% of those calculated, despite the very low scattering cross sections of both (7)Li and (19)F. This is the first determination and comparison with theory of such simultaneous measurements for nuclei of mass > 4 amu, and demonstrates the implementation of the DINS method in its current form as a mass-selective neutron spectroscopy. |
| spellingShingle | Seel, A Ceriotti, M Edwards, P Mayers, J Simultaneous measurement of lithium and fluorine momentum in 7LiF. |
| title | Simultaneous measurement of lithium and fluorine momentum in 7LiF. |
| title_full | Simultaneous measurement of lithium and fluorine momentum in 7LiF. |
| title_fullStr | Simultaneous measurement of lithium and fluorine momentum in 7LiF. |
| title_full_unstemmed | Simultaneous measurement of lithium and fluorine momentum in 7LiF. |
| title_short | Simultaneous measurement of lithium and fluorine momentum in 7LiF. |
| title_sort | simultaneous measurement of lithium and fluorine momentum in 7lif |
| work_keys_str_mv | AT seela simultaneousmeasurementoflithiumandfluorinemomentumin7lif AT ceriottim simultaneousmeasurementoflithiumandfluorinemomentumin7lif AT edwardsp simultaneousmeasurementoflithiumandfluorinemomentumin7lif AT mayersj simultaneousmeasurementoflithiumandfluorinemomentumin7lif |