EXPERIMENTAL STATION 6-2

CURRENT STATUS:	Open
SUPPORTED TECHNIQUES:	BL6-2a: Soft x-ray absorption spectroscopy Rapid-scanning xRF imaging Advanced x-ray spectroscopy (XES, XRS, RIXS) XES: Resonant and non-resonant x-ray emission spectroscopy XRS: Non-resonant x-ray Raman scattering BL6-2b: X-ray microprobe X-ray absorption spectroscopy imaging Total x-ray reflection fluorescence BL6-2c: Transmission X-ray Microscopy
MAIN SCIENTIFIC DISCIPLINES:	Biology / Materials / Environmental
% TIME GENERAL USE:	100%
SCHEDULING:	Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules
SOURCE:	56-pole, 0.9-Tesla Wiggler ID End Station
BEAM LINE SPECIFICATIONS:   energy range resolution DE/E spot size flux angular acceptance focused 2360-5000 eV ~10-4 0.2 x 0.5 mm   0 - 1.2 mrad unfocused 4000-17000 eV ~10-5 2.0 x 20.0 mm   0 - 1.2 mrad
OPTICS:	M0: Bent flat single-crystal Silicon Rh coated 10-17 keV cutoff, vertically collimating M1: Bent cylindrical single-crystal Silicon Rh coated, standard focus M2: Bent flat Zerodur Ni coated 5 keV cutoff
MONOCHROMATOR:	LN2-cooled monochromator Si(111)Φ=0, Si(311)Φ=0 Monochromator Crystal Glitch Library Crystal changes need to be scheduled and coordinated in advance with BL support staff.
ABSORPTION:	127 micron Be
INSTRUMENTATION:	Soft X-ray (2.4-5 keV) XAS instrument, 13-element Ge detector array, ion chambers Instrumentation for continous-scanning, large-spot size (50-100 micron2) XAS imaging experiments Instrumentation for inelastic scattering experiments Kirkpatrick-Baez based XAS imaging instrument Xradia transmission x-ray microscope instrument
DATA ACQUISITION AND ANALYSIS:	XAS-collect, EXAFSPAK, SUPER X-ray Data Booklet
RESPONSIBLE STAFF:	Bart Johnson, 650-926-3858 Uwe Bergmann, 650-926-3048 (BL6-2a,b) Serena DeBeer George, 650-926-4674 (BL6-2a) Joy Andrews Hayter, 650-926-4285 (BL6-2c)
BEAM LINE PHONE NUMBER:	650-926-5262 On-site Users: Contact the Duty Operator at 9-926-4040
GENERAL DESCRIPTION:	BL6-2 has an in-vacuum LN2-cooled monochromator and is windowless up to a 127 mm Be window in the hutch. For high-energy applications, a toroidal Si M1 mirror is used as post-monochromator focusing element. For soft-energy applications, the M2 mirror is used for harmonic rejection.
Sample Preparation Labs:	The SSRL Structural Molecular Biology (SMB) Sample Preparation Laboratories are available to users by prearrangement. To use a laboratory, users must complete laboratory training, and provide a list of all chemicals to be brought, used or stored in the Sample Preparation Laboratory. For details, contact Cynthia Patty (650-926-3925).
SCIENTIFIC APPLICATIONS / SELECTED RESULTS:	Feb 2009: X-rays used to reveal secrets of famous fossil May 2008: A New Eye on Sulfur in Living Tissues May 2008: Brains in the Beam Line March 2008: Big Science Gets Small December 2007: Uwe Bergmann Demystifies X-rays November 2007: Solvent Tuning of Properties of Iron-Sulfur Clusters in Proteins April 2007: An X-ray Time Machine April 2007: Zebra Fish in the Mineshift: Understanding Mercury Toxicity February 2007: Delocalized Molecular Orbitals of the [6Fe-6S] Cluster of the FeFe-Hydrogenase December 2006: Compositions of Stardust Impact Tracks and Terminal Particles in Aerogel by Hard X-ray Microprobe at SSRL December 2006: Synchrotrons Help Reveal the Nature of Comets August 2006: Modern Technology Reveals Ancient Science July 2006: Holey Germanium - New Routes to Ordered Nanoporous Semiconductors October 2005: Sulfur in the Timbers of Henry VIII's Warship Mary Rose: Synchrotrons Illuminate Conservation Concerns May 2005: X-rays Illuminate Ancient Archimedes Text March 2002: Formation of Chlorinated Hydrocarbons in Weathering Plant Material February 2002: Can Sulfur Spectroscopy Save the 17th-Century Warship Vasa? January 2002: Bacterial Sulfur Storage Globules
ENGINEERING NOTES	http://www-ssrl.slac.stanford.edu/safety/ beamlines/bl6/

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Last Updated:	19 Feb 2009
Content Owner:	Bart Johnson
Page Editor:	Nikola Stojanovic