Unified Data Sheet P61B

P61B is specialized in X-ray diffraction and radiography experiments at elevated pressures and temperatures on solids and liquids using high-energy x-rays.

NOTE: Beamline is in commissioning. Information shown here is preliminary only!


I. General specifications

Beamline technical design report can be viewed here (some elements may be outdated): TDR2015

Beamline calculations can be viewed here (PDF file)

Latest beamline poster (August 2019): open in new tab.

Full beamline layout incl. P61A (click for larger view)

beamline layout
Table 1. Beamline characteristics
Techniques available
X-ray diffraction and radiography
Photon source
10 wigglers
Max. source flux
1012 ph/s/0.1% b.w. (max. 100mA, aperture 1 x 1 mm2 at 133 m from source)
Energy range 
30 - 200 keV
Minimum: 300 micron CVD-diamond + 50 micron Cu
Maximum: 900 micron CVD-diamond + 150 micron Cu
Max. flux on SAMPLE
(assuming B-epoxy pressure medium and pre-gaskets, hBN sleeve, graphite furnace, attenuation thru air, and 2 frontend filters: 300 um CVD-dia, 50 um Cu)
4x1011 ph/s/0.1% b.w. at 50 keV (calculated)
Spot size ON SAMPLE 
max. 1.5 x 1.5 mm2
Sample type
encapsulated solid (powder or pre-sintered sample)

II. Detectors

2 high purity Ge-detectors with collimator-slit system

Detector configuration

Minimum horizontal range: ±5° (one at min. -5° and one at min. +5°)
Maximum horizontal range: ±10° (one at max. -10° and one at max. +10°)
Vertical angular range: 0° to 27° (only for 1 detector)
Simultaneous horizontal and vertical positioning at > 5° for both detectors


III. Radiography camera

Fast sCMOS camera on a white beam X-ray microscope with 10x and 20x objectives, using LaAG:Ce and GGG:Eu scintillators (20 um thickness).


IV. Large volume press specifications


-- 6 independently-controlled rams with laser positioning accuracy of 0.1 micron
-- 15 MN maximum load (5 MN per pair of rams)
-- Primary anvils of hardened tool steel (60 mm truncation)
-- 5-axis stage (X, Y1, Z, for translation, phiZ for rotation/oscillation, Y2 for phiZ alignment to the beam)

Different modes of compression

-- 6-8 'Kawai' compression geometry using eight 32 mm or 27 mm cubic WC anvils
-- 6-6 'cubic' compression geometry using six cylindrical WC anvils

High-pressure deformation in 6-6 geometry

-- Axisymmetric triaxial testing
-- 'True' triaxial testing (operating 2 pairs of independently moving rams)
-- Deformation in compression and in tension

Sample environment

-- 300 K - 2400 K (DC-heating with 10 kW power supply)
-- 1 GPa - 24 GPa (development ongoing to reach even higher pressures)
-- Short (0.5-2 h) and long-duration (2-8 h) experiments