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.
- Partnership for Extreme Crystallography (PX^2) at 13 BMC. Click for more info
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.
BM-C Contacts
Peter Eng
Beamline Scientist
Interface / Surface Studies and Powder Diffraction
(630) 252-0424
eng@cars.uchicago.edu
Joanne Stubbs
Beamline Scientist
Interface / Surface Studies and Powder Diffraction
(630) 252-0427
stubbs@cars.uchicago.edu
Vitali Prakapenka
Beamline Scientist
High Pressure / High Temperature Diamond Anvil Cell (DAC)
(630) 252-0439
prakapenka@cars.uchicago.edu
Dongzhou Zhang
Beamline Scientist
dzzhang@uchicago.edu