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The high-flux backscattering spectrometer at the NIST Center for Neutron Research
Open accessAbstract
We describe the design and current performance of the high-flux backscattering spectrometer located at the NIST Center for Neutron Research. The design incorporates several state-of-the-art neutron optical devices to achieve the highest flux on sample possible while maintaining an energy resolution of less than 1 μeV. Foremost among these is a novel phase-space transformation chopper that significantly reduces the mismatch between the beam divergences of the primary and secondary parts of the instrument. This resolves a long-standing problem of backscattering spectrometers, and produces a relative gain in neutron flux of 4.2. A high-speed Doppler-driven monochromator system has been built that is capable of achieving energy transfers of up to ±50 μeV, thereby extending the dynamic range of this type of spectrometer by more than a factor of 2 over that of other reactor-based backscattering instruments.
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Cited by
Liu, L., Chen, S.-H., Faraone, A., Yen, C.-W., & Mou, C.-Y. (2005) · Physical Review Letters · doi:10.1103/physrevlett.95.117802 · Cited by 481
Fragile-to-strong liquid transition in deeply supercooled confined water
Faraone, A., Liu, L., Mou, C.-Y., Yen, C.-W., & Chen, S.-H. (2004) · The Journal of Chemical Physics · doi:10.1063/1.1832595 · Cited by 314
Metadata
- Authors
- Meyer, A., Dimeo, R. M., Gehring, P. M., & Neumann, D. A.
- Venue
- Review of Scientific Instruments
- Publisher
- AIP Publishing
- Published
- 2003-05-01
- Volume
- 74
- Issue
- 5
- Pages
- 2759-2777
- ISSN
- 0034-6748 (ISSN-L)
- 1089-7623
- OpenAlex
- W2138082545
- Cited by
- 284
- References
- 0
- FWCI
- 9.16
- Type
- journal article
- Language
- en
- Open access
- green
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- Meyer, A., Dimeo, R. M., Gehring, P. M., & Neumann, D. A. (2003). The high-flux backscattering spectrometer at the NIST Center for Neutron Research. Review of Scientific Instruments. https://doi.org/10.1063/1.1568557
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