Beamline 12-BM / BESSRC-CAT

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Scientific focus:

Spectroscopy, x-ray scattering, and diffraction

Scientific programs:

Materials science

Geoscience

Chemistry

Atomic Physics

Optics & Optical Performance

BESSRC standard monochromator

Mirrors

Experiment Stations

12-BM-A

12-BM-B

Detectors

Beamline Controls and Data Acquisition

Beamline Support Equipment/Facilities

12-BM-B

Bending Magnet Source Characteristics (nominal)

source APS bending magnet
critical energy 19.51 keV
on-axis peak brilliance at 16.3 keV 2.9 x 1015 ph/sec/mrad2/mm2/0.1%bw
on-axis peak angular flux at 16.3 keV 9.6 x 1013 ph/sec/mrad2/0.1%bw
on-axis peak horizontal angular flux at 5.6 keV 1.6 x 1013 ph/sec/mradh/0.1%bw
source size at critical energy  
Σx 145 μm
Σy 36 μm
source divergence at critical energy  
Σx' 6 mrad
Σy' 47 μrad