Beamline ID15B is dedicated to the determination of structural properties of solids at high pressure using angle-dispersive-diffraction with diamond anvil cells.

The beam from an in-vacuum U20 insertion-device is focused by vertical and horizontal transfocator and monochromatized by Si(111) Bragg monochromator. The working energy for high pressure experiments is 30 keV with a flux of 1012photons/s at 200 mA. The beam size on the sample is normally about 10x10 µm2.

The scattered radiation is collected by a Mar555 flat panel detector, which has a 430 x 350 mm (555mm diagonal) active area.

A laser spectrometer is available for pressure determination by the ruby fluorescence method.
It is also possible to perform Raman scattering experiments simultaneously.

The beamline is equipped with severalmembrane-type diamondanvil cells (0-60 GPa), a Liquid He cooled cryostat to perform high pressure experiments at low temperatures (down to 10 K), and external resistive heating equipment for high temperatures up to 600 K.

A Nd-YAG laser system is availableexternally for high temperature annealing of samples inside the diamond anvil cell.

Beamline Energy Resolution
3 [eV] @ 30000 [eV]
Beamline Energy Range
30 [eV]
Max Flux On Sample
1 * 1012 [ph/s] @ 30000 [eV]
Spot Size On Sample Hor
10 - 50 [um]
Spot Size On Sample Vert
10 - 50 [um]
Divergence Hor
0.1 [mrad]
Divergence Vert
0.1 [mrad]
Photon Sources

IVU20

Type
Undulator
Energy Range
10 - 90 [keV]
Period
20 [mm]
Monochromators

Si111

Energy Range
30000 [eV]
Type
single bounce Si111 horizontal deflecting nitrogen cooled fixed exit Bragg monochromator
Resolving Power
1 * 10-4 [deltaE/E] @ 30000 [eV]
Other Optics
Endstations or Setup

EH1

Sample Environment

Description
Furnace:
External resistive furnace for diamond anvil cells; temperatures up to 600K
Temperature
300 - 600 [K]
Description
Liquid He cooled cryostat:
To perform high pressure experiments at low temperatures (down to 10K); high pressure anvil cells installed inside
It is a closed cycle cryostat.
Beam entry window: Mylar foil; exit window: Kapton foil
Temperature
10 - 300 [K]
Description
Membrane-type diamond anvil cells:
0-60 Gpa (up to 150Gpa, depending on diamond anvils) several different cells available + different cells from the high-pressure lab)
for Single crystal / powder diffraction
controlled with GE Pace 6000 (auto pressure controller)
Pressure (Max)
150 [mbar]
Description
Nd-YAG laser system:
External Nd-YAG laser system for high temperature annealing of samples inside the diamond anvil cell
Description
Raman spectrometer:
Detectors

mar555

Type
MAR555 flat panel detector
Pixel Size
X = 139 [um], Y = 139 [um]
Array Size
X = 2560 [pixel], Y = 3072 [pixel]
Passive or Active (Electronics)
Active
Dynamic Range
1 * 1018 [bit]

Detection

Detected Particle
Electron
Support Laboratories

hp-laboratory

Description

Fully equipped high pressure laboratory. This includes membrane diamond anvil cells, microscopes, micro hole, PRL system, gas loading machine (for inert gas only) .


Optics laboratory

Description

Raman and laser annealing system


contacts
Michael HANFLAND
Gaston Garbarino
Techniques
Diffraction
  • Crystallography
  • Crystallography (biological macromolecules)
  • Powder diffraction
Imaging
  • X-ray microscopy
Disciplines
Chemistry
  • Other - Chemistry
Earth Sciences & Environment
  • Other - Earth Sciences & Environment
Engineering & Technology
  • Other - Engineering & Technology
Material Sciences
  • Other - Material Sciences
Physics
  • Atomic & molecular physics
  • Other - Physics
control/Data analysis
Control Software Type
  • SPEC
Data Output Type
  • images
Data Output Format
  • mar2560, Esperanto, chiplot
Softwares For Data Analysis
  • Fit2d, Dioptas, CrysAlis
Equipment That Can Be Brought By The User
All type of diamond anvil cells
Other Equipment Available On Site
Fully equipped high pressure laboratory. This includes membrane diamond anvil cells, microscopes, micro hole, PRL system, gas loading machine (for inert gas only) .
Optical laboratory with Raman system and laser annealing system.
in partnership with