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Title: The 40m General Purpose Small-Angle Neutron Scattering Instrument at Oak Ridge National Laboratory

Abstract

A high-flux, 40m long small-angle neutron scattering (SANS) instrument has been constructed at Oak Ridge National Laboratory (ORNL). The facility utilizes a mechanical velocity selector, pinhole collimation and a high count-rate (> 105 Hz), large-area (1m2) two-dimensional position-sensitive detector. The incident wavelength (λ), resolution (Δλ/λ), incident collimation and sample-detector distance are independently variable under computer control. The detector can translate 45cm off axis to increase the overall Q-range (< 0.001 < Q = 4πλ-1sin θ < 1 Å-1), where 2θ is the angle of scatter. The design and characteristics of this instrument are described along with examples of scattering data to illustrate the performance.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1056938
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Applied Crystallography
Additional Journal Information:
Journal Volume: 45; Journal Issue: 5; Journal ID: ISSN 0021-8898
Country of Publication:
United States
Language:
English
Subject:
Small-angle neutron scattering; biology; polymer structure; solid state physics

Citation Formats

Wignall, George D., Bailey, Katherine M., Buchanan, Michelle V., Butler, Paul D., Heller, William T., Littrell, Ken, Lynn, Gary W., Melnichenko, Yuri B., Myles, Dean A A, and Urban, Volker S. The 40m General Purpose Small-Angle Neutron Scattering Instrument at Oak Ridge National Laboratory. United States: N. p., 2012. Web. doi:10.1107/S0021889812027057.
Wignall, George D., Bailey, Katherine M., Buchanan, Michelle V., Butler, Paul D., Heller, William T., Littrell, Ken, Lynn, Gary W., Melnichenko, Yuri B., Myles, Dean A A, & Urban, Volker S. The 40m General Purpose Small-Angle Neutron Scattering Instrument at Oak Ridge National Laboratory. United States. doi:10.1107/S0021889812027057.
Wignall, George D., Bailey, Katherine M., Buchanan, Michelle V., Butler, Paul D., Heller, William T., Littrell, Ken, Lynn, Gary W., Melnichenko, Yuri B., Myles, Dean A A, and Urban, Volker S. Mon . "The 40m General Purpose Small-Angle Neutron Scattering Instrument at Oak Ridge National Laboratory". United States. doi:10.1107/S0021889812027057.
@article{osti_1056938,
title = {The 40m General Purpose Small-Angle Neutron Scattering Instrument at Oak Ridge National Laboratory},
author = {Wignall, George D. and Bailey, Katherine M. and Buchanan, Michelle V. and Butler, Paul D. and Heller, William T. and Littrell, Ken and Lynn, Gary W. and Melnichenko, Yuri B. and Myles, Dean A A and Urban, Volker S.},
abstractNote = {A high-flux, 40m long small-angle neutron scattering (SANS) instrument has been constructed at Oak Ridge National Laboratory (ORNL). The facility utilizes a mechanical velocity selector, pinhole collimation and a high count-rate (> 105 Hz), large-area (1m2) two-dimensional position-sensitive detector. The incident wavelength (λ), resolution (Δλ/λ), incident collimation and sample-detector distance are independently variable under computer control. The detector can translate 45cm off axis to increase the overall Q-range (< 0.001 < Q = 4πλ-1sin θ < 1 Å-1), where 2θ is the angle of scatter. The design and characteristics of this instrument are described along with examples of scattering data to illustrate the performance.},
doi = {10.1107/S0021889812027057},
journal = {Journal of Applied Crystallography},
issn = {0021-8898},
number = 5,
volume = 45,
place = {United States},
year = {2012},
month = {10}
}

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