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XRD2 Specifications
This page is a list of all the important parameters of the beamline and an indication of all the available instrumentation.
In case more details are needed you can contact directly the beamline scientists
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X-rays at sample
Energy range |
8-35 keV |
Photon flux |
2-3 x 1013 ph/sec @ 1 Ang, full beam |
Beam size |
280 x 292 um |
Angular divergence |
2.3 x 0.3 mrad |
Source
Type
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Insertion Device: Superconducting Wiggler (SCW) |
Section |
11.2 |
Gap |
16.5 mm |
Poles |
49 |
Period |
64 mm |
N. of periods |
24.5 |
B0 |
3.5 T |
Ec |
9.3 (13.4) keV at 2.0 (2.4) GeV |
K |
20.9 |
Source Size FWHM |
0.66 x 0.06 mm |
Angular acceptance |
1 x 0.18 urad |
Power (2 GeV, 400 mA) |
18 kW |
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![](/images/Documents/XRD/xrd2/slideshow/scw.jpg)
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Optics
Collimating Mirror |
Cilindrical Mirror with 50 nm Pt-coating
Radius (calculated) = 14 km
Distance from source = 21200 mm
Incidence angle = 3 mrad
Active length = 1200 mm |
Monochromator |
Double Crystal Si111 with LN2 closed loop cooling
Distance from source = 24100 mm
Energy range = 8-35 keV
Energy resolution = 10-4 for routine experiments and MAD experiments |
Focusing mirror |
Toridal Mirros with 50 nm Pt-coating
Tangential radius = 8.9 km
Sagittal radius = 50 mm
Distance from source = 27000 mm
Incidence angle = 3 mrad
Active length = 1200 mm |
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Diffractometer
Diffractometer Type |
Arinax Microdiffractometer MD2s |
Circle Axis |
Omega - Phi - miniKappa (0-48 deg, for 22 mm sample holder length, Spine standard) |
Linear Axis |
XYZ Alignment stage and XY Centering Table |
Sphere of Confusion |
<2 µm |
Sample Visualization |
On Axis Videomicroscope, with front and backlight |
Beam defining aperture |
Motorized pentaperture: 20, 50, 75, 100, 150 um available |
Beam diagnostics |
Motorized Scintillator/Photodiode at sample position |
Additional Notes |
Motorized capillary for background reduction Motorized beamstop Smart magnet for SPINE standard base Cryojet translation stage Fluorescence detector (Amptek X123SDD)
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Dectris Pilatus 6M
Type |
CMOS hybrid-pixel technology operating in single-photon-counting mode 5x 12 Modules |
Sensor |
Si 320 µm thick (room temperature; water circuit) |
Pixel Size |
172 x 172 µm2 |
Point-spread function |
1 pixel |
Format |
2463 x 2527 = 6,224,001 pixels |
Area |
423.6 x 434.6 mm2 |
Distance from sample |
146 - 1060 mm |
Intermodule gap |
x: 7 pixels, y: 17 pixels, 8.5% of total area |
Dynamic Range |
20 bits (1:1,048,576) |
Readout time |
3.6 ms (frame rate 30 Hz) |
Adjustable threshold |
range 2- 20 keV (energy resolution 500 eV) |
Energy range |
3 - 30 keV (quantum efficiency: 3 keV 80%; 8 keV 99%; 15 keV 55%) |
Counting rate per pixel |
> 2 x 106 X-ray/s |
Data Formats |
CBF; TIF |
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Last Updated on Friday, 21 February 2020 10:54