BL7-2

Overview
BL7-2

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

After many years of service, the scattering capability is planned to be removed from bamline 7-2 after the first cycle of 2019 (March 2020). All of the wonderful capabilities our users have appreciated will be available at the new undulator scattering beamline BL 17-2 later in 2020.

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.

Sample Environment —

Standard Ambient temperature/pressure (He) by default
Vacuum Chuck for reflection geometry samples
Anton-Parr Heater
Sample size 2 to 15 mm typical
Sample temperature See above

Instrumentation —

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

Technical Specifications

Energy —

Energy Range Resolution ΔE/E Spot Size Flux
Focused 14000 eV 3 x 10-4 0.18 x 0.40 mm
W: 0.1-0.25 m		 < 2 x 1012

Optics —

M0 Mirror Monochromator
Vertical focusing, flat bent, 0.6 m, Si, Rh-coated -cooled Si(111), ϕ = 0o, double-crystal Sagittal focusing

Absorption —

46 μm Be, 15 μm C

Publications

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Science Highlights

Beam Line 7-2 Science Highlights

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