Small-angle scattering instruments on a 1 MW long pulse spallation source
Two small-angle neutron scattering instruments have been designed and optimized for installation at a 1 MW long pulse spallation source. The first of these instruments allows access to length scales in materials from 10 to 400 {angstrom}, and the second instrument from 40 to 1200 {angstrom}. Design characteristics were determined and optimization was done using the MCLIB Monte Carlo instrument simulation package. The code has been {open_quote}benchmarked{close_quote} by simulating the {open_quote}as-built{close_quote} D11 spectrometer at ILL and a performance comparison of the three instruments was made. Comparisons were made by evaluating the scattered intensity for {delta} scatterers at different Q values for various instrument configurations needed to span a Q-range of 0.0007 - 0.44 {angstrom}{sup {minus}1}.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 137307
- Report Number(s):
- LA-UR-95-3612; CONF-9510212-4; ON: DE96002592; TRN: 96:001272
- Resource Relation:
- Conference: ICANS-XIII: 13. international collaboration on advanced neutron sources, Villigen (Switzerland), 11-14 Oct 1995; Other Information: PBD: 1995
- Country of Publication:
- United States
- Language:
- English
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