Portrait Iyas IsmailChapo

Hello Iyas! Congratulation for this new position at CNRS, what a great achievement! We think that your story could interest many people, especially students regarding their professional career. Could you enlighten us about your background?


After graduating in physical engineering from the Higher Institute of Applied Sciences and Technology (HIAST), Damascus Syria, I came to France to prepare the DEA (Master 2) “Rayonnement et Plasmas” at the Université́ de Provence (Marseille). Then I moved to the Université́ de Paris-Sud, Laboratoire des Collisions Atomiques et Moléculaires (LCAM), where I obtained a PhD degree in Physics (2005). After that, I came back to Syria, where I was nominated in 2006 as permanent researcher at the Atomic Energy Commission of Syria to work at the Ion Beam Accelerator Laboratory. In 2014, I was promoted to senior researcher at the same laboratory.

In 2015, PLAS@PAR offered you the opportunity to work on MOSARIX, an important and exciting project fully founded by the Labex. May you explain the project and your results?


Mosarix 1   Mosarix 2

Credit: Iyas Ismail, LCPMR

In 2015, I have been recruited by PLAS@PAR for a 3-years contract at LCPMR (Sorbonne Université). I was in charge of the development of a new X-ray spectrometer (MOSARIX) with high resolution and high efficiency allowing for the first time to measure the photons X (1.8 to 5 keV) in coincidence with ions or electrons.

As part of this project, I developed a new detector of photons based on microchannel plates (MCPs). This detector was a subject of a patent application (January 12, 2018)! The fast response of this detector allows coincidence measurements of photons with good time and spatial resolution. This makes possible to reach a spectral resolution <1eV over the entire energy range. I recently designed, built and successfully tested, at GALAXIES beamline of the SOLEIL synchrotron, a first version of this spectrometer. This allowed to test our simulations, validate the design and to move toward the construction of the final multi-crystals version of the spectrometer!

This project looks like a success story! It should be a plus for the permanent position you were looking for at CNRS. Can you explain us if there is a direct link between your work on MOSARIX and your new missions?



Credit: LCPMR, https://lcpmr.cnrs.fr/

Yes, I will continue working on MOSARIX besides other new projects as well. Currently, I started working with two groups of the LCPMR using different heavy experimental setups: X-XUV spectrometers and electron spectrometer (magnetic bottle). These equipments can be used both at the laboratory and large-scale facilities (SOLEIL synchrotron and Free Electron Laser XFEL). I am interested in the development of these techniques besides the different scientific projects involved with. In addition, I have a project to combine MOSARIX with some of these spectrometers to make unique measurements of photons with high resolution and/or in coincidence with ions or electrons.

Can you precise your scientific goals?

My scientific objective is to study the processes occurring after excitation in inner shell of molecules using intense photon beams issued from third generation synchrotron or XFEL sources. Later on, it might be interesting to go toward to study larger molecules of biological interest owing to the unprecedented measurements of photons in coincidences with ions and electrons that can be performed with MOSARIX spectrometer and the different instruments of the LCPMR.

Thanks Iyas and good luck!