Photon Sciences | Brookhaven National Laboratory
Source TypeBending magnet
StatusOperational
General User Beamtime50%
Energy Range CategoryHard X-Ray (1-50 keV)
Energy Range1.2-8 keV, standard 2-5
Beamline TypeParticipating Research Team (PRT)
Technique(s)X-ray absorption spectroscopyX-ray absorption spectroscopy, extended fine structureX-ray absorption spectroscopy, fine structureX-ray absorption spectroscopy, near edge fine structureX-ray absorption spectroscopy, near edge structure
Institution(s)Corning, Inc.Georgia Institute of TechnologyLawrence Berkeley National LaboratoryLucent Technologies, Inc.Miami UniversityNaval Research Laboratory (NRL)North Carolina State UniversityPrinceton UniversitySUNY @ Stony BrookUniversity of DelawareWoods Hole Oceanographic Institute
Research TypesEnviron. interfaces, contam. transport/speciation, carbonate/high-press. minerals, atmos. particles; photovoltaics, fuel-cells, CO2-sequestration; Paleo-ocean chem., biomass/fuel productivity/ sustainability, nutrient transport/bioavailability, C cycling
Spokesperson Paul Northrup, SUNY @ Stony Brook, northrup@bnl.gov, 6313443565
Local Contact Paul Northrup, SUNY @ Stony Brook, northrup@bnl.gov, 6313443565
Beamtime Scheduler Paul Northrup, SUNY @ Stony Brook, northrup@bnl.gov, 6313443565
Beamline Phone631-344-5715
Beamline Characteristics
Optical SystemMirror 1: Cylindrical platinum coated Glidcop; 1m long; cooled; vertically collimating; incidence angle can be adjusted (0.2 deg. to 2.0 deg. range) to discriminate against harmonics; located 8 meters from the source. Monochromator: Double flat crytal UHV monochromator with fixed-exit geometry; first crystal is cooled; Bragg angle range from 10 deg. to 80 deg.; located 10 meters from the source. Crystal pairs include Si(111), Ge(111), Si(311), InSb, Beryl. Energy resolution is determined by crystals. Energy repeatability is within 0.1 eV scan-to-scan and over 24+ hours. Mirror 2: 1:1 focusing platinum coated ULE (silica) toroid; 0.4 degree incidence angle; 1m long.
Experimental ApparatusA small Hutch Box, with air or He atmosphere, is equipped with a Ge fluorescence detector, ion chambers, and sample stage. Operating range is 1.2-8 keV. Stage has accommodations for solution flow and electrochemistry cells, and grazing-incidence geometries. An ultra-high vacuum chamber is available for use by highly-qualified users under supervision of beamline personnel. Contact Spokesperson for specifications. An independent end station supplied by the General User and approved by the Spokesperson may be installed downstream of the existing UHV chamber.
Computer System Hardware & SoftwarePC386 and Pentium computers with Windows 95, floppy, Jaz and Zip drives; associated software and graphics. Export of text formats for users.
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