13 BM-C Beamline

Supported Techniques

• Surface Diffraction
• High Pressure Diamond Anvil Cell
• Single Crystal Diffraction
• In Situ Powder Diffraction

Major Beamline Components

• Monochromator
• One-Meter Long Rhodium-Coated Silicon Vertical Mirror
• Newport Kappa Six-Circle General Purpose Diffractometer

Detectors

• Vortex Single-Element and 4-Element SDD Detectors
• Dectris Pilatus 100K Pixel Array Detector
• Dectris Pilatus3 1M Pixel Array Detector

Additional Equipment

• Environmental cells for surface scattering that support in situ mineral-water interface chemistry, interfacial redox chemistry, electrochemistry, and radioactive samples.
• Access to GSECARS laboratories including microscopy instrumentation, wet lab, fume hood, laminar-flow hood, glove box, and sample prep areas

Experiments in the 13 BM-C station.

• Surface diffraction : 15 keV. Collects entire 1.5 mrad fan focused on sample with monochromator.
• In situ powder diffraction : 15 or 29 keV.  Time-resolved powder diffraction collected while manipulating chemistry, heating, electrochemistry, etc.
• Diamond anvil cell diffraction and imaging : 29 keV. Can use either entire 1.5 mrad fan and focused on sample, or smaller horizontal beam focused by KB mirror in hutch.

Beamline Optics

The bending magnet fan is divided into two parts.   An outboard fan of 2.5 mrad feeds the 13-BM-D station, and an inboard fan of 1.5 mrad feeds the 13-BM-C station.   These fans are separated  by 1 mrad. The extreme inside and outside 0.5 mrad on each edge of the 6 mrad fan is not used.

The 13-BM-C beamline has a focusing Si <111> and Si<311> single-crystal side-bounce monochromator.  It operates at a fixed angle where the <111> is 15 keV and the <311> is 29 keV.  There is a 1 m long vertical focusing mirror in the 13-BM-B optics station.  This mirror is used for some experiments and removed for others.  There are small K/B mirrors that are placed on the experimental table in 13-BM-C.

APS Beamine Directory Entry for 13 BMC