BioXAS-side beamline has a 5 mrad separation from the central line. The Side beamline is similar to the Main beamline and differs in some of the optical components as outlined below.

Performance Figures

Source

22-poles (11-periods), 2.1 Tesla, Flat-top Wiggler
Energy Range	5-32 keV
Resolution (dE/E)	1 x 10^-4
Spot Size	3 mm x 0.5 mm (v x h ) @ 12 keV
Flux	1x10^11 @ 12k eV

Sample Environment
Cryostat	LN2 or LHe temperatures: 5x1 mm, 7x3 mm, 15x5mm
Sample Wheel	for samples, 5x 1mm, 7x3 mm.

Optics
M1 Mirror	water cooled, Toroidal 1 m Si, Rh coated, sagittal radius 33mm
Monochromator	LN2 cooled Si(220), phi= 0 or 90 deg, non-fixed exit.
M2 Mirror	Flat bent, vertically focusing 1.1 m Rh-coated
DBHR	for energies below 10keV; a double bounce harmonic rejection mirror ( C-Coated Si)

Instrumentation
Detectors	Ionization Chambers, PIPS, Canberra 32-element HPGe Solid Sate
Cryostat	Oxford Cryostat (10K or 80 K)
Other	Shutter and beam attenuation filter; Soller slits, fluorescence filters.
Reference wheel	automatic reference wheel

Data Acquisition
	GUI based Data Acquisition Manager Software (AcquaMan) and Python Based
	Automation Package (cls_bxs_control)
	Automatic scan queuing available for multiple samples and/or multiple spots on the same sample
	Athena, Larch and Viper for data analysis

Typical achievable flux

The plot of energy vs flux shows the typical flux achievable in the whole operational energy range (5-32 keV) for the Side beamline. Note: the flux drops noticeably at the edges of the range, but it's still usable for samples with relatively high concentrations of the elements of interest.

Reference Foils

Reference foil spectra captured on bioXAS-Side in transmission mode. The resolution is comparable to those reported in the literature for typical Spectroscopy Beamlines.