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Title: The CG1 instrument development test station at the high flux isotope reactor
Authors: Crow, L
Robertson, L
Bilheux, H
Fleenor, M
Iverson, E
Tong, X
Stoica, D
Lee, WT
Keywords: Neutron diffraction
Neutron flux
Polarized beams
Neutron spectra
Issue Date: 1-Apr-2011
Publisher: Elsevier
Citation: Crow, L., Robertson, L., Bilheux, H., Fleenor, M., Iverson, E., Tong, X., Stoica, D., & Lee, W.T. (2011). The CG1 instrument development test station at the high flux isotope reactor. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, Vol.634 (1, Supplement): S71-S74. doi:10.1016/j.nima.2010.06.213
Abstract: The CG1 instrument development station at the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory began commissioning operation in 2009. When completed, the station will have four beams. CG1A is a 4.22 angstrom monochromatic beam intended for spin-echo resolved grazing incidence scattering (SERGIS) prototype development. Initial beam operation and characterization are in progress. CG1B will be a 2.35 angstrom monochromatic beam for a 2-axis utility diffractometer for sample alignment and monochromator development. CG1C will have a double-bounce monochromator system, which will produce a variable wavelength beam from about 1.8-6.4 angstrom, and will be used for imaging and optical development. The CG1D beam is a single chopper time-of-flight system, used for instrument prototype and component testing. The cold neutron spectrum, with an integrated flux of about 2.7 x 10(9) n/cm(2) s, has a guide cutoff at 0.8 angstrom and useful wavelengths greater than 20 angstrom. Initial results from CG1 include spectral characterization, imaging tests, detector trials, and polarizer tests. An overview of recent tests will be presented, and upcoming instrument prototype efforts will be described. (C) 2010 Elsevier B.V. All rights reserved.
Gov't Doc #: 3801
ISSN: 0168-9002
Appears in Collections:Journal Articles

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