- Experiment & Sample preparation
- Data Analysis
Welcome to the power diffraction beamline at SESAME
The SESAME MS beamline is based on components previously installed at the Swiss Light Source donated to SESAME by the Paul Scherrer Institute. It is used for X-Ray Powder Diffraction (XRPD) applications. Its flexible optical design spans a wide energy range of the order of 5 to 25 keV. A two-circle goniometer installed in the experimental hutch accommodates standard XRPD experiments.
The XRPD technique of the MS beamline may be applied to material phase identification, quantitative analysis, atomic structural determinations, and the characterization of material microstructural properties such as structure imperfections, domain size determination, and kinetic studies.
This beamline, which has been hosting users since December 2020, may be used in a wide range of research fields stretching from materials science and engineering to chemistry, physics, and archeometry.
Information for users
Please cite the following reference paper in all publications that include in any part data obtained at the MS beamline. The reference papers to be cited in your papers following measurements at the MS beamline are:
- “Operational status of the X-ray powder diffraction beamline at the SESAME synchrotron”
M. Abdellatief, M. A. Najdawi, Y. Momani, B. Aljamal, A. Abbadi, M. Harfouche and G. Paolucci J. Synchrotron Rad. (2022). 29. doi.org/10.1107/S1600577521012820
- “The SESAME materials science beamline for XRD applications”
M Abdellatief, L Rebuffi, H Khosroabadi, M Najdawi, T Abu-Hanieh, M Attal, G Paolucci. Powder Diffraction Journal, Vol. 32 - S1, pp. S6-S12 (2017). doi: 10.1017/S0885715617000021
MS is based on a wiggler source operated at 12 mm magnetic gap equivalent to 1.38 T. the flux produced from the wiggler is high compared to a bending magnet source. The main components of the front end are
- Fixed mask for defining the beamline acceptance angles
- Photon shutter to stop the photon beam whenever necessary
- Rotating filter
- White beam slits
- Radiation stopper
The MS beamline optical layout consist of a cylindrically collimated Rhodium coated mirror fixed aligned to 3 m rad grazing angle. Then Kozhu Si (111) double-crystal fixed exit monochromator is located to select the energy, with second sagittal crystal to focus the beam horizontally at the sample location. Then a second cylindrical Rhodium coated mirror to focus the beam vertically.
The MS experimental station is based on a refurbished two circle diffractometer previously was installed at I19 beamline at Diamond synchrotron. The inner rotary (theta) is for the sample rotation while the second rotary (2theta) is for the detector rotation. A homemade spinner for transmission experiments is fixed on a translational XY stage attached on the theta rotary.
Pilatus 300K detector (donated by DECTRIS company) is the main detector in use at MS end station, it has a very good time resolution together with a reasonable angular resolution gained by fixing the detector at 740 mm distance from the sample.
Heating and cooling samples in capillaries are possible at MS using hot gas blower and liquid nitrogen cryostat respectively, moreover further sample environmental stages can be added the experimental station.
optical surface facing up
optical surface facing down
Dectris Pilatus 300K
- Powder samples filled in glass capillaries (Boro Silicate for room temperature; Quartz for temperature dependent)
- Capillary spinner
- Gas blower for temperature dependent experiments (RT – 1000 C)
- Liquid nitrogen cryostat (to be ready soon)
- Output data type as (2D images , Ascii (xy) files)
- PDF-4 database
- “Match!” software for phase matching analysis is available
- Several refinement software for structural analysis (e.g. GSAS-II, Fullprof)
An analytical calibration procedure to convert 2D TIFF images to Ascii(xy) files is used through a macro script of ImageJ software. Then a simple executable Python-based code is then used to merge all data files for each experiment to create one merged file (Zubi & Abdellatief, 2021: https://github.com/SESAME-Synchrotron/2thetaFilesMerger).
- Effect of vanadium and tungsten doping on the structural, optical, and electronic characteristics of TiO2 nanoparticles
Journal of Materials Science, Vol. , pp. (2022)
Z.K. Heiba, M. B.Mohamed, A. Badawi, M. Abdellatief
- Operational status of the X-ray powder diffraction beamline at the SESAME synchrotron
Journal of Synchrotron Radiation, Vol. 29, pp. (2022)
M. Abdellatief, M. A. Najdawi, Y. Momani, B. Aljamal, A. Abbadi, M. Harfouche, G. Paolucci
- Robust Barium Phosphate Metal Organic Frameworks Synthesized under Aqueous Conditions
ACS Materials Lett., Vol. , pp. 1010-1015 (2021)
K.A. Salmeia, S. Dolabella, D. Parida, T.J. Frankcombe, A.T. Afaneh, K.E. Cordova, B. Al-Maythalony, S. Zhao, R. Civioc, A. Marashdeh, B. Spingler, R. Frison, A. Neels
- The SESAME materials science beamline for XRD applications
Powder Diffraction, Vol. 32 - S1, pp. S6-S12 (2017)
M Abdellatief, L Rebuffi, H Khosroabadi, M Najdawi, T Abu-Hanieh, M Attal, G Paolucci
MS Beamline Principal Scientist
Work Tel: +962 5 351 1348 (Ext. 275)