BioXAS-Spectroscopy (07ID-2)

• Status

  Accepting Proposals

• Source

  Wiggler, 11-periods, K>29

• Energy Range

  5000 - 32000 eV

• Energy Resolution ΔE/E

  <10^-4

• Flux (ph/s/0.1%BW)

  >10¹² @ 12 keV

• Spot Size (HxV)

  Variable, 3mm x 0.5mm @ 12 keV

Techniques:

• X-ray Absorption Near Edge Structure (XANES)
• Extended X-ray Absorption Fine Structure (EXAFS)

Optics

• Rh-coated toroidal mirrors for vertical collimation and moderate horizontal focusing.
• Si220 Double Crystal Monochromator, pseudo channel-cut, LN₂-cooled
• CVD Diamond-coated Harmonic Rejection Mirrors

Endstation & Capabilities

• Beamline incorporates two endstations operating independently to maximize throughput.
• Standard setup includes 3 Ionization Chambers (N₂/Ar flow), Large-Area PIPS Diode (Total Fluorescence Yield), multi-positional sample holder on movable stage for automated measurements at ambient conditions.
• Beamline is equipped with the Liquid Helium cryostats to protect the samples from radiation damage and improve the signal/noise ratio in EXAFS region. LN₂ is used by default, please inform the beamline staff in advance if LHe is required.
• Two 32-channel HPGE detectors (Canberra) paired with powerful XSPRESS3 ADCs may work simultaneously and provide exceptional detection capabilities – sub-ppm / sub-µM in XANES regime.

Contacts

Beamline Scientist: Roman Chernikov 306-657-3814
Associate Scientist: Emilio Heredia 306-657-3576
 
Main Endstation Phone: 306-657-3626
Side Endstation Phone: 306-657-3627