Design and characterization of an undulator beam line optimized for small-angle coherent x-ray scattering at the Advanced Photon Source.

Journal Article · Fri Jan 01 00:00:00 EST 1999 · J. Synchrotron Radiat.

DOI:https://doi.org/10.1107/S0909049599009590· OSTI ID:942682

Sandy, R; Lurio, L B; Mochrie, S G. J.; Mailk, A; Stephenson, G B; Pelletier, J F; Sutton, M

An undulator beamline and small-angle-scattering spectrometer have been implemented at the Advanced Photon Source. The beamline is optimized for performing small-angle wide-bandpass coherent X-ray scattering measurements, and has been characterized by measuring static X-ray speckle patterns from isotropically disordered samples. Statistical analyses of the speckle patterns have been performed from which the speckle widths and contrast are extracted versus wavevector transfer and sample thickness. The measured speckle widths and contrast are compared with an approximation to the intensity correlation function and found to be in good agreement with its predictions.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC); USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 942682
• Report Number(s): ANL/MSD/JA-33704; JSYRES; TRN: US0903734
• Journal Information: J. Synchrotron Radiat., Vol. 6, Issue 1999; ISSN 0909-0495
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
BEAMS
CORRELATION FUNCTIONS
DESIGN
SCATTERING
SMALL ANGLE SCATTERING
SPECTROMETERS
THICKNESS
WIGGLER MAGNETS