Ultra-small-angle x-ray scattering at the Advanced Photon Source.

Journal Article · Mon Jun 01 04:00:00 EDT 2009 · J. Appl. Crystallogr.

DOI:https://doi.org/10.1107/S0021889809008802· OSTI ID:956919

Ilavsky, J; Jemian, P R; Allen, A J; Zhang, F; Levine, L E; Long, G G; NIST,

The design and operation of a versatile ultra-small-angle X-ray scattering (USAXS) instrument at the Advanced Photon Source (APS) at Argonne National Laboratory are presented. The instrument is optimized for the high brilliance and low emittance of an APS undulator source. It has angular and energy resolutions of the order of 10{sup -4}, accurate and repeatable X-ray energy tunability over its operational energy range from 8 to 18 keV, and a dynamic intensity range of 10{sup 8} to 10{sup 9}, depending on the configuration. It further offers quantitative primary calibration of X-ray scattering cross sections, a scattering vector range from 0.0001 to 1 {angstrom}{sup -1}, and stability and reliability over extended running periods. Its operational configurations include one-dimensional collimated (slit-smeared) USAXS, two-dimensional collimated USAXS and USAXS imaging. A robust data reduction and data analysis package, which was developed in parallel with the instrument, is available and supported at the APS.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 956919
• Report Number(s): ANL/XSD/JA-62960
• Journal Information: J. Appl. Crystallogr., Journal Name: J. Appl. Crystallogr. Journal Issue: Jun. 2009 Vol. 42; ISSN 0021-8898; ISSN JACGAR
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
ANL
CALIBRATION
CONFIGURATION
CROSS SECTIONS
DATA ANALYSIS
DESIGN
ENERGY RANGE
ENERGY RESOLUTION
RELIABILITY
SCATTERING
STABILITY
VECTORS
WIGGLER MAGNETS