BL 2-3

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Micro-focus hard x-ray imaging and micro x-ray absorption spectroscopy

Ideal for obtaining elemental maps of small samples (10 microns - 25 mm) as well as performing spectroscopy on selected points in the sample

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Source: 1.3 Tesla Bend Magnet, 0.75 mrad acceptance

Monochromator: Water cooled, double crystal Si(111)

Energy range: 4.9 - 23 keV focussed (please contact for experiments above 19 keV)

Energy Resolution:

Beam size on sample: 1 micron OR 5 micron diameter                   axially symmetric focusing optics

Flux on sample: ~10^9 photon/sec (see image)

Detector: Single element Hitachi Vortex 90EX, 50mm^2 area

Detection system:                      Xspress3, Zebra and V2F100 

Max count rate: 3 million counts per second

Practical element detection: SiK - NbK, most L-edges (concentration dependent)

Sample Environment: Ambient temperature and pressure, biological cryo cell available on request

Sample mounting:

Primary mode is the "Wheel of Fortune"optimized for thin sections. Samples are mounted to cassettes that push fit into a wheel that can hold up to 6 cassettes (see gallery and CAD below).

Interactive CAD viewer of 2-3 Hutch and Sample Wheel

Tips:

  1. Click and drag to orbit.

  2. Hold shift, then click and drag to pan.

  3. Scroll (2 finger drag) for zoom.

  4. To hide or show components (such as the hutch walls) select the object, right click and select "Hide Selected".

  5. To show all components, right click and select "Show all objects".

Concentration Standard Foils

Standards & Concentrations: if you measured foils at the beamline, here is the key:

 

Row 1                                                                        Row 2

 

 

Row 3                                                                        Row 4

 

 

*Individual concentrations for: Cu: 39.4 ug/cm2, S: 11.8 ug/cm2)

Element
Concentration ug/cm2
CuSx*
51.2
Se
46.4
CaF2
56.8
ZnTe
45.8
Ni
55.4
Co
45
Mn
47.1
Fe
56
Element
Concentration ug/cm2
Pb
46.1
Au
47.6
SrF
246.3
AgHg
42.5
WO
354
GdF
353.7
MoO
351.7
Element
Concentration ug/cm2
GaAs
4.3
Cr
48.3
V
55.6
Ti
50.4
YP
348.2
SiO2
48.8
CsBr
50.5
Element
Concentration ug/cm2
LaF
347.6
TiCl
39.7
ZrF
434.49
GaP
47
KCl
49.1