EXPERIMENTAL STATION 1-4

CURRENT STATUS:	Open
SUPPORTED TECHNIQUES:	Small angle x-ray scattering
MAIN SCIENTIFIC DISCIPLINES:	Materials
% TIME GENERAL USE:	100%
SCHEDULING:	Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules
SOURCE:	Bend magnet
BEAM LINE SPECIFICATIONS:   energy range resolution DE/E spot size flux angular acceptance focused 7100-9000 eV 4.0 x 10-3 0.25 x 1.0 mm ~1010 2.0 mrad
OPTICS:
MONOCHROMATOR:	Bent crystal; Si
ABSORPTION:	NA
INSTRUMENTATION:	Small/Low Angle X-ray Scattering Camera System w/CCD Detector
DATA ACQUISITION AND ANALYSIS:	SPEC For questions and issues related to SPEC, contact beam line staff or send an email to M$SPEC@ssrl.slac.stanford.edu
RESPONSIBLE STAFF:	John Pople, 650-926-5124
BEAM LINE PHONE NUMBER:	650-926-5214 On-site Users: Contact the Duty Operator at 9-926-4040
GENERAL DESCRIPTION:	BL1-4 is a general user SAXS scattering facility with some limited capability for WAXS. A new hutch was installed during the 2003-2004 SPEAR3 shutdown, which increased the accessible range of reciprocal space, opening up the facility to the demands of colloidal and nano-particle scattering projects. The principal mirror on the beam line was replaced, and all upstream optics retrofitted to cope with the higher flux available from the SPEAR3 source at 500 mA. The beam line is equipped with a new Rayonix165 CCD detector with a large angular range. Beam line stages include a solid/liquid sample temperature control stage (25-450° C with +/- 2°C control), and a tensiometer mount providing beam in-situ uniaxial extension to a sample and a heating capacity up to 100°C. There is a drivable x-y flat-plate stage and a goniometer for scattering studies in reflection geometry. SPEC software interfaces provide control of the optics and all sample environments, and extract physical parameters from the SAXS data collected.
SCIENTIFIC APPLICATIONS / SELECTED RESULTS:	January 2011: Science Snapshot: Nickel Nanocubes August 2006: Hydrogen: Key to a Sustainable Future July 2004: Nanoparticles: Strained and Stiff February 2003: Tailoring Plastics at the Molecular Level for Cost and Environmental Benefits in Industrial Processing
ENGINEERING NOTES:	http://www-ssrl.slac.stanford.edu/safety/beamlines/bl1/

SSRL | Beamlines | User Admin | Safety

Last Updated:	27 JAN 2011
Content Owner:	John Pople
Page Editor:	Lisa Dunn