12-BM-B: Multipurpose X-ray Absorption and Scattering
XSD
Catalysis, Chemistry, Environmental Science, Materials Science, Physics, Polymer Science
Catalysis, Chemistry, Environmental Science, Materials Science, Physics, Polymer Science
12-BM is a X-ray Absorption Spectroscopy (XAS) beamline with simultaneous SAXS/WAXS capability. The beamline uses a water-cooled, double-crystal, fixed-exit monochromator with Si(111)/Si(311) crystals capable of operations between 4.5 and 40 keV. A double mirror system (flat plus toroidal) with a cutoff energy of 40 keV focuses the beam in the experimental station to 0.5 mm x 0.5 mm. Supported techniques include EXAFS, XANES and combined XAS - SAXS/WAXS. The end station is equipped with a Vortex-ME7 with Xspress3 electronics for spectroscopy, MX225 (Rayonix) and MerlinX (Quantum Detectors) for SAXS/WAXS.
Beamline Specifications
Source : Bending Magnet
Monochromator Type : Si(311)
Energy Range : 10-40 keV
Resolution : 2 x 10-5
Flux : 1 x 1011 @12 keV
Beam Size Hxv :
Unfocused : 10mm x 2mm
Source : Bending Magnet
Unfocused : 10mm x 2mm
Monochromator Type : Si(111)
Energy Range : 4.5-20 keV
Resolution : 1.4 x 10-4
Flux : 4 x 1011 @12 keV
Beam Size Hxv :
Focused : 500µm x 1000µm
Monochromator Type : Si(311)
Energy Range : 10-40 keV
Resolution : 2 x 10-5
Flux : 1 x 1011 @12 keV
Beam Size Hxv :
Unfocused : 10mm x 2mm
Source : Bending Magnet
Unfocused : 10mm x 2mm
Monochromator Type : Si(111)
Energy Range : 4.5-20 keV
Resolution : 1.4 x 10-4
Flux : 4 x 1011 @12 keV
Beam Size Hxv :
Focused : 500µm x 1000µm
Quick Stats
Current Status
Operational/Accepting General Users
Operational/Accepting General Users
Access Mode
On-site Remote Mail-in
On-site Remote Mail-in
Beamline Contacts
Beamline Techniques
X-ray absorption fine structure
Small-angle x-ray scattering
Wide-angle x-ray scattering
Endstations
12-BM-B
monochromatic beam station
monochromatic beam station
12-BM-B
spectroscopy (EXAFS and XANES)
spectroscopy (EXAFS and XANES)
12-BM-B
small angle X-ray scattering (SAXS) with EXAFS
small angle X-ray scattering (SAXS) with EXAFS
12-BM-B
wide angle X-ray Scattering (WAXS) with EXAFS
wide angle X-ray Scattering (WAXS) with EXAFS
Detectors
Ionization chambers
Vortex-ME7
MX225 (3072x3072 pixels)
MerlinX (512x512 pixels, 55um, 100Hz)
Equipment
Spectroscopy table
Ventilated Hutch, no HEPA filter
Autosampler system with Cartesian Robot
Additional Information
Additional Information
https://www.aps.anl.gov/Sector-12/12-BM
https://www.aps.anl.gov/Sector-12/12-BM
Software
Linux workstation running EPICS with VME and SPEC software, Windows running EPICS applications
Linux workstation running EPICS with VME and SPEC software, Windows running EPICS applications
Beamline Controls and Data Acquisition
Linux workstation running EPICS with VME and SPEC software, Windows running EPICS applications
Linux workstation running EPICS with VME and SPEC software, Windows running EPICS applications