Materials Sciences

The beamline 17-2 end-station is currently under construction. This beamline will support simultaneous SAXS/WAXS, XRD, and optical pump x-ray probe measurements. The scientific focus is targeted to take advantage of the high brightness anticipated from the micro-focused beam, with an emphasis on in-situ experiments with demanding time resolution. The beamline will have multiple detectors available and configurable by the beamline staff including a suite of area detectors including an Eiger 1M, Eiger 2 500k, and Eiger 4M.

Beamline 15-2 is an undulator experimental station dedicated to advanced hard x-ray spectroscopy. The end station is equipped with sub-corehole lifetime resolution x-ray emission spectrometers (a 7-crystal Johann spectrometer and a 8 crystal von Hamos instrument) as well as a high-throughput and high energy resolution (0.3eV) 40-crystal low-q x-ray Raman spectrometer.

Beam line 14-3b, located on the downstream table in the BL14-3 hutch, is a bending magnet side station dedicated to x-ray imaging and micro x-ray absorption spectroscopy of biological, biomedical, materials, and geological samples. Most often used for data collection at the S K edge, BL14-3 is the only SSRL beam line capable of XAS at the P K edge. During imaging mode, a SIGRAY axially symmetric mirror system is used to achieve the microfocus with a beam size of ~ 5 x 5 microns, or sub-micron sizes.

Beam line 14-3a, located on the upstream table of the hutch of the BL14-3 bending magnet side station, is dedicated to bulk x-ray absorption spectroscopy of biological, materials, and geological samples in the tender x-ray photon energy range 2.1-5.0 keV. BL14-3 is the only beam line at SSRL capable of obtaining spectroscopy data at the phosphorous K edge. In this configuration the beam is unfocused over a size of 1 mm x 6 mm to allow for high energy-resolution measurements on homogenous samples.

Beam line 13-3 utilizes a spherical grating monochromator (SGM) on an elliptical polarized undulator (EPU) operating in the photon energy range from 230 eV to 1700 eV with full polarization control (linear vertical/horizontal and circular left/right) covering the C, O, F K-edges, 3d transition metal L-edges, and 4f rare-earth element M-edges.

Beam line in transition.

Beam line 11-3 is a fixed energy (12.7 keV) wiggler side-station dedicated primarily for wide angle x-ray scattering (WAXS). BL11-3 is equipped with a two-dimensional Rayonix MX225 CCD area detector. Supports sample-to-detector distances of 80-550 mm. There are sample environments available for both transmission and grazing incidence geometries. Sample heating is available for both single sample transmission and grazing incidence geometries.

Beam line currently closed for upgrade.

Beam line 10-2 is a wiggler-based source that splits time between the front hutch (BL10-2a), instrumented for wide-angle X-ray scattering, and the rear hutch (BL10-2b), instrumented for X-ray spectroscopy with a focus on in-situ, time-resolved catalyst characterization.

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 6-2c is a wiggler end-station dedicated to hard x-ray transmission x-ray microscopy. The BL6-2c back hutch houses a Transmission X-ray Microscope with 2D and 3D full field imaging and spectroscopic capabilities, with an instrument resolution down to 30 nm. It has specific capabilities for in-situ tomographic studies of catalytic processes including x-ray absorption spectroscopy.