The SNS Liquids Reflectometer
- ORNL
- Stevens Institute of Technology, Hoboken, New Jersey
The SNS Liquids Reflectometer [1], installed as one of the first instruments at the Spallation Neutron Source, has now been functional for more than a year. This instrument is designed to view liquid and solid surfaces in specular, off specular, and near-surface small angle scattering geometries. The guide system supplies 2 {angstrom} < {angstrom} < 16.5 {angstrom} neutrons at vertical incident angles ranging from 0{sup o} < {alpha}{sub i} < 5.5{sup o} for free liquid surfaces and up to 45{sup o} for solid surfaces. Three bandwidth choppers, synchronized with the spallation source and operating at 15-60 Hz, provide neutrons in bandwidths ranging from 3.5-14 {angstrom} at a fixed incident angle onto a sample. The sample stage enables all of the motions necessary for positioning liquid and solid surfaces, while the detector arm directs a position-sensitive detector to view the sample at specular or off specular angles up to 90{sup o} and can scan out of the specular plane by up to 30{sup o}.
- Research Organization:
- Oak Ridge National Laboratory (ORNL); Spallation Neutron Source
- Sponsoring Organization:
- ORNL LDRD Director's R&D; SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 943540
- Journal Information:
- Neutron News, Journal Name: Neutron News Journal Issue: 3 Vol. 19
- Country of Publication:
- United States
- Language:
- English
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