Experimental Station 7-2

Beam line 7-2 is a wiggler end station dedicated for x-ray scattering with a focus on in-situ experiments. BL7-2 is equipped with a customized Huber type 5021 6+2 axis diffractometer and uses PILATUS 100K and 300K area detectors (including for time-resolved experiments), a Si crystal-analyzer with point detector for high resolution studies, or a 1 mradian Soller slit with a Vortex Si drift detector.  After many years of service, the scattering capability is planned to be removed from bamline 7-2 after the first cycle of 2019.  All of the wonderful capabilities our users appreciate will be available at the new undulator scattering beamline BL 17-2. 

Status
Open
Supported Techniques
X-ray diffraction
X-ray reflectivity
X-ray scattering
Main Scientific Disciplines
Environmental Sciences
Materials Sciences
Beam Line Specifications

Source

20-pole, 2-Tesla wiggler, 0.5 mrad acceptance

Energy Range Resolution ΔE/E Spot Size Flux
14000 eV <3x10-4 0.18 x 0.40mm2 <2 x 1012

 

Optics

M0 mirror: vertical focusing, flat bent, 0.6 m, Si, Rh-coated

Monochromator: LN2-cooled Si(111), ϕ = 0o, double-crystal Sagittal focusing

Absorption

546 μm Be, 15 μm C

Instrumentation

Detectors: Pilatus 300K and 100K may be scheduled. PMT or Vortex point detectors.

Cryocooler (60-300K), or Displex (20-300K), or Anton Paar (to 700C) heated stage may be scheduled.

Other: Shutter and variable filters to protect detectors and alleviate sample beam damage. 

Sample Environment

Ambient temperature/pressure (He) by default

Sample temperature: see above

Vacuum Chuck for reflection geometry samples

Anton-Parr Heater

Sample size: 2 to 15 mm typical

Data Acquisition and Analysis

Data Acquisition - SPEC,  XmapGUI for Vortex.

Data Analysis - WxDiff, Nika & IRENA macros for Igor Pro

Beam Line Phone
650-926-5272. On-site Users: Contact the Duty Operator at 9-926-4040
Beam Line Contact

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