P10 - Coherence Application Beamline
The Coherence Beamline P10 at PETRA III benefits from the outstanding brilliance of the new storage ring. The flux of coherent synchrotron radiation exceeds that delivered by existing storage ring based sources. The beamline operates in the medium-hard x-ray regime (5-25keV). The beamline serves two main experimental goals: Investigation of sample dynamics in the range from microseconds to seconds by X-ray Photon Correlation Spectroscopy (XPCS) and Coherent imaging of micro- and nanostructures.
GENERAL SPECIFICATIONS
|
techniques available |
mainly coherent scattering techniques, namely: Bragg CDI, XPCS, XCCA |
|---|---|
|
photon source |
undulator |
|
period number of periods max power |
31.4 mm 154 7.5 kW |
|
source brilliance |
1020 ph / s / 0.1% bw / mA |
|
polarization available |
linear horizontal |
|
energy range |
5.0 keV to 20.0 keV |
|
beamline energy resolution |
~1eV at 10.0 keV |
|
max flux ON SAMPLE |
At 8 keV: 109 coherent ph/s in 10x10 µm2 |
|
spot size ON SAMPLE |
250 μm x 250 μm to 5 μm x 5 μm to 0.3 μm x 0.3 μm
(strongly depending on setup used) |
|
angle of incidence light – sample |
strongly setup dependent large horizontal diffraction setup: 0-15deg USAXS/SAXS setup: ~0-0.3 deg / ~0-1.0deg 6-circle: ??? |
|
sample type |
solid or liquid |
OPTICS
|
Monochromator |
Cryo cooled double crystal monochromator crystals: Si(111) and Si(111) channelcut energy ranges: 5.0 keV to 20 keV ~7.0 keV to 17 keV (channelcut) resolving power: 0.01% |
|---|---|
|
Mirrors |
Two horizontally reflecting flat mirrors R > 100km Si, Rh & Pt stripes additional Pink beam mirror foreseen |
|
Focusing |
1D & 2D Be lens transfocator for micron sized beams KB focusing for 300 nm x 300 nm sized beams
|
ENDSTATION(S)
Five independent experimental setups are installed at P10. For details see the other beamline web pages.
Sample environments
|
pressure range |
n.a. |
|---|---|
|
temperature range |
4 K to 500 K |
|
humidity range |
n.a. |
Detection modes
|
Transmission |
yes |
|---|---|
|
Reflection |
yes |
|
Fluorescence |
no |
|
Total electron yield |
no |
|
Grazing incidence angle |
yes |
Detectors
|
Type |
PI LCX CCD |
EIGER 500K |
EIGER 4M |
APD |
|---|---|---|---|---|
|
energy resolution |
none |
none | none |
none |
|
count rate [counts/s/pixel] |
40 [8 keV] |
1x106 |
1x106 |
~1x107 |
|
read-out time |
2 s |
µs |
us |
20 ns |
|
pixel size |
20 µm |
75 µm | 75 µm | slits |
|
array size |
1340 x 1300 |
1030x 514 |
2070 x 2167 |
|
|
field of view |
26 x 27mm2 |
77 x 38 mm2 | 155 x 165 mm2 |
CONTROL/DATA ANALYSIS
|
Software type |
online, Tango, perl, python |
|---|---|
|
Data output type |
images, correlation-functions, parameters like temperature |
|
Data output |
detector dependent - ascii, tif, cbf/edf, ... |
|
Software(s) for quantitative analysis |
in-house, XPCSGUI |
SUPPORT LAB
Sample preparation laboratory
Electronics laboratory
Mechanics laboratory
