EXPERIMENTAL STATION 11-2

CURRENT STATUS:	Open
SUPPORTED TECHNIQUES:	X-ray absorption spectroscopy Grazing incidence x-ray absorption spectroscopy
MAIN SCIENTIFIC DISCIPLINES:	Molecular Environmental and Interface Science (see also: BL11-2 User Support)
% TIME GENERAL USE:	100%
SCHEDULING:	Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules
SOURCE:	26-pole, 2.0-Tesla Wiggler ID End Station
BEAM LINE SPECIFICATIONS:   energy range resolution DE/E spot size flux angular acceptance focused 4500 - 21000 eV ~1 x 10-4 0.5 x 3.0 mm   1.5 mrad unfocused 4500 - 37000 eV ~10-4 3.0 x 30.0 mm   ~0.9 mrad Collimated 4500 - 20000 eV ~1 x 10-4 2.0x 30.0 mm   ~0.9 mrad
OPTICS:	M0: Bent flat Si M1: Bent cylindrical Si
MONOCHROMATOR:	LN2-cooled monochromator Si(220), Phi=0 or 90 degrees Monochromator Crystal Glitch Library Crystal changes need to be scheduled and coordinated in advance with BL support staff.
ABSORPTION:
INSTRUMENTATION:	30-element Ge solid state Detector Array LHe cryostat Grazing incidence XAS instrument
DATA ACQUISITION AND ANALYSIS	XAS Collect, Super and Six PACK X-ray Data Booklet
RESPONSIBLE STAFF:	Joe Rogers, 650-926-3088, Cellphone: 408-529-5688 John Bargar, 650-926-4949, Cellphone: 650-284-9573
BEAM LINE PHONE NUMBER	650-926-8650 On-site Users: Contact the Duty Operator at 9-926-4040
GENERAL DESCRIPTION	BL11-2 is a high-flux XAS station dedicated to molecular environmental and interface sciences. It is equipped with a 30-element Ge solid state detector, a LHe cryostat, a grazing incidence XAS instrument and specialized equipment for monitoring and potential containment of radioactive materials. It has an adjacent "ante-room" for secure temporary storage of the samples, some of which are related to the DOE's mission for remediation of radionuclides resulting from the nuclear stockpile.
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	January 2009: The Competition for Iron Impacts the Global Carbon Cycle July 2007: A Surprising Behavior of Yttrium Impurities June 2007: Understanding Arsenic March 2007: Rare Minerals Illuminate 17,000-year old Questions November 2006: A Uranium Dilemma October 2006: In Situ Biological Uranium Remediation within a Highly Contaminated Aquifer September 2006: X-ray Science Saves Taxpayers Billions in Radioactive Cleanup September 2006: SSRL and Rocky Flats Plutonium Remediation September 2006: Effect of Local Coordination in the Photoluminescence Properties of Er-doped Y2O3 Thin Films June 2005: Geological and Anthropogenic Factors Influencing Mercury Speciation in Mine Wastes October 2004: Investigations to Identify the Soluble, Non-pertechnetate Species in the High-level Nuclear Waste at the Hanford Site November 2003: Remediation of Uranium-contaminated Water at Fry Canyon, Utah
ENGINEERING NOTES	http://www-ssrl.slac.stanford.edu/safety/ beamlines/bl11/

SSRL | Beamlines | User Admin | Safety

Last Updated:	22 APR 2008
Content Owner:	John Bargar
Page Editor:	Nikola Stojanovic