VULCAN-The engineering diffractometer at the SNS

Journal Article · Sun Jan 01 04:00:00 EST 2006 · Physica B: Condensed Matter

DOI:https://doi.org/10.1016/j.physb.2006.06.103· OSTI ID:1001704

Wang, Xun-Li ^[1]; Holden, T. M. ^[2]; Rennich, George Q ^[1]; Stoica, A. D. ^[3]; Liaw, Peter K ^[4]; Choo, Hahn ^[1]; Hubbard, Camden R ^[1]

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1. ORNL
2. Northern Stress Technology
3. Oak Ridge Associated Universities (ORAU)
4. University of Tennessee, Knoxville (UTK)

The VULCAN diffractometer at the Spallation Neutron Source (SNS) is designed to tackle a broad range of problems in materials science and engineering, including spatial mapping of the residual stress distribution in components, deformation behavior under static and cyclic loadings, and the kinetics of the phase transformation. The optics design features a focusing neutron guide, wide-angular detector coverage for diffraction, and an area detector for small angle scattering. By employing an interchangeable neutron guide-collimator system, the instrument can be optimally configured for individual experiments with desired resolution. The performance of the instrument was estimated using Monte Carlo simulation. A suite of specialized sample environments is also under construction as an integrated part of the instrument.

• Research Organization: Oak Ridge National Laboratory (ORNL); Spallation Neutron Source
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1001704
• Journal Information: Physica B: Condensed Matter, Journal Name: Physica B: Condensed Matter Journal Issue: 1 Vol. 385-386; ISSN 0921-4526
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONSTRUCTION
DEFORMATION
DESIGN
DIFFRACTION
DIFFRACTOMETERS
DISTRIBUTION
FOCUSING
KINETICS
NEUTRON GUIDES
NEUTRON SOURCES
NEUTRONS
OPTICS
PERFORMANCE
PHASE TRANSFORMATIONS
RESOLUTION
SIMULATION
SMALL ANGLE SCATTERING
SPALLATION