An automated neutron reflectometer (POSY II) at the intense pulsed neutron source
| Autor: | Y.Y. Huang, Alamgir Karim, R. Goyette, B.H. Arendt, G. P. Felcher, R. Kleb |
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| Rok vydání: | 1991 |
| Předmět: |
Physics
business.industry Scattering Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Neutron diffraction Condensed Matter Physics Intense Pulsed Neutron Source Neutron time-of-flight scattering Electronic Optical and Magnetic Materials Optics Neutron backscattering Neutron detection Neutron Neutron reflectometry Electrical and Electronic Engineering Nuclear Experiment business |
| Zdroj: | Physica B: Condensed Matter. 173:17-24 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/0921-4526(91)90030-i |
| Popis: | A brief description is given of the time-of-flight neutron reflectometer POSY II at the Intense Pulsed Neutron Source (IPNS) at Argonne National Laboratory. Both data collection and refinement of the experimental data are nearly automatic. The neutron reflectivity is measured as a function of the neutron momentum perpendicular to the surface over a range from 0 to 0.1 A -1 . The instrument is capable of measuring reflectivities as low as 10 -6 . The neutron reflectivity is used to determine the composition profile of the layers close to the surface of the sample, with a depth resolution of ∽10 A. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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