Multi-anvil Beamline Project at PETRA-III Extension

• Combination of MA and synchrotron X-rays
• • Precise determination of phase relations by energy-dispersive X-ray diffraction with white X-rays
  • Falling-sphere viscosity measurement by X-ray radiography
  • Deformation experiment in combination of X-ray radiography and X-ray stress measurement by 2D-detector with monochromatic X-rays or by multiple SSD detectors with white X-rays
  • 3D textural analysis by X-ray radiography with mono. X-rays
• German synchrotron radiation (DESY) offers a damping wiggler beam line for MA experiments
• • Damping wiggler of PETRA-III provides the most brilliant white X-rays in the world
• Construction of MA experimental station with a 6-axis MA apparatus
• • Reliable phase relations to 1000-km depth
  • Rheological properties of minerals under deep-mantle conditions

Facility

• PETRA-III
• • Built in 1978 for particle physics
  • Rebuilt as a 3rd-generation 6GeV synchrotron radiation source in 2007/2008
• PETRA-III Extension
• • Add 11 more beam line to PETRA-III

Beamline

• P61.2 in the PETRA-III Extension Hall North
• • 2nd experimental station (downstream side) in a damping wiggler beamline

X-ray Source & Optics

• Damping wiggler: 10 wigglers are aligned in serial to produce high-flux white X-rays
• • 10 times more brilliant than BL04B1 in SPring-8
  • Low energy parts are attenuated by filters to suppress heat production

High-pressure apparatus

• Six-ram multi-anvil press with a maximum load of 5 MN at each axis
• Five-layer translation and rotation stages: Y2 - φZ - Y1 - X - Z
• Two compression modes:   6-8 and 6-6 modes

Detector system

• Horizontal and vertical goniometers with a Ge-SSD for EDXRD with white X-rays
• Phase identification, pressure measurement, & stress measurement
• X-ray CCD camera for radiography

Future Plan - Monochromatic X-rays

Time Line

• July 27 (Week 31) 2015: installation of 6-rams large-volume press
• 3. Quarter 2016: installation of detector mount
• 1. Quarter 2017: Commissioning of energy-dispersive X-ray diffraction under high-PT
• Summer 2017: User friendly operation for energy-dispersive X-ray diffraction
• 2018-2019: Monochromator installation
• ・2019-2020: User friendly operation angle-dispersive X-ray diffraction