期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 85, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4891302
关键词
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资金
- Scientific User Facilities Division, Office of Basic Energy Sciences, U. S. Department of Energy
We have engineered and installed a radial collimator for use in the scattered beam of a neutron time-of-flight spectrometer at a spallation neutron source. The radial collimator may be used with both thermal and epithermal neutrons, reducing the detected scattering intensity due to material outside of the sample region substantially. The collimator is located inside of the sample chamber of the instrument, which routinely cycles between atmospheric conditions and cryogenic vacuum. The oscillation and support mechanism of the collimator allow it to be removed from use without breaking vacuum. We describe here the design and characterization of this radial collimator. (C) 2014 AIP Publishing LLC.
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