Construction of the P61 white-beam beamline at PETRA III Extension M.Tischer, H. Schulte-Schrepping, T. Wroblewski Anne Wefer Radsynch, 21/04/2017
Contents • Introduction of PETRA III Extension • P61 Beamline Overview • Construction details • Outlook
PETRA III at DESY Parameter PETRA III Energy / GeV 6 Circumference / m 2304 Total current / mA 100 Number of bunches 960 / 40 Emittance (horz. / vert.) / nm 1 / 0.01 Number of insertion devices 14
PETRA III Extension beamlines
PETRA III North: damping wigglers 8 regular absorbers: < 26 kW each 2 long absorbers: à ~90 kW Final absorber: ~120 kW Total power: ~420 kW / DW section
PETRA III North: damping wigglers Magnet structure Peak field B0 1.52 T Magnetic gap 24 mm Period length 200 mm Number of poles 38 + 2 Magnet volume / period 2200 cm^3 Field quality at x0= 10 mm < 10^-3 Damping integral/ segment 3.9 T^2m Overall length / segment 4 m Number of wiggler segments 20 Flux density (one DW) 2.8 . 10 15 ph/s/mrad 2 /0.1%BW Critical energy 37 keV
Beamline P61 Overview Optics hutch 1 HZG experimental hutch P61.1 Optics hutch 2 P61.2 Experimental hutch PETRA III tunnel Control hutch Offline LVP hutch P64, P65 (XAFS beamlines) Hall North (PXN)
Beamline P61.2 Overview
In-situ X-ray observations / materials synthesis Optics hutch Experimental hutch On-line LVP 6-rams press 500ton x 6 in-situ ex-situ
Extreme Conditions Research 40m damping wiggler array energy ~50-200 keV flux ~10 11 1/s (0.1% BW) at 200 keV energy dispersive with pink beam (>50keV) Angle dispersive with monochromatic beam Mono beam Damping Wiggler Pink beam white beam SSD (energy filters dispersive 2D detector diffraction) (angle dispersive Fixed-exit double Laue diffraction) crystal Monochromator
Construction of the P61 beamline
Construction of the P61 beamline Door: 20mm lead + 10 cm PE
Construction of the P61 beamline
Construction of the P61 beamline
Outlook • 3D construction already finished • Call for tender in may • Start of construction in december • First beam fall 2018
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