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SSRL - BL7-3

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Beamline Name BL7-3
Primary Contact: NameRitimukta Sarangi
Secondary Contact: NameMatthew Latimer
Status DetailsOpen
%Time Available (general use)100
Experiments DetailsBeam line 7-3 is a wiggler side-station beam line dedicated for X-ray absorption spectroscopy and EXAFS measurements on dilute biological systems. BL7-3 is equipped with a 30-element Ge solid-state detector in addition to ionization chambers and Lytle detectors. A dedicated liq-He cryostat allows for routine low temperature measurements. The unfocused beam is ideal for samples especially susceptible to radiation damage, such as high-valent intermediates and other oxidized species.
Special CapabilitiesAbsorption Edges
Special Capabilities DetailsLow temperature XAS measurements on radiation sensitive samples.
Source Details20-pole, 2-Tesla wiggler - Acceptance up to 1.0 mrad
Spot Size (mm): HeightVariable; max 2
Spot Size (mm): WidthVariable; max 20
MonochromatorLiquid nitrogen-cooled double crystal, non-fixed exit slit
Crystal TypeSi(220), 2 phi orientations, LN2 cooled
MirrorsM0: Si, vertically collimating, flat, bent,1 m, Rh-coated
Flux(PHOTONS/SEC)1 x 10^12
Flux Details
Wavelength Range (Å)info not available
Energy Range (keV)5 - 30
Detector: Type30-element Ge solid state array; Lytle detector; PIPS detector, ion chambers
Detector: ModelCanberra
Detector: Activated for Serviceinfo currently not available
Detector: Removed from Service
Cryo CapabilityOxford CF1208 continuous flow liquid helium cryostat
Cryo Capability Details10-200 K
Lab FacilitiesSample preparation laboratory, cold room, glove boxes
Software: NameICS (instrumentation control); XAS Collect (acquisition, Ge30Plus (detector setup), SRS570 (amplifier control), EXAFSPAK (analysis)
Software: ClassificationControl, data acquisition, analysis