The Madeleine Lecoq Prize from the Academy of Sciences awarded to Suheyla Bilgen

On Tuesday October 18, 2022, under the dome of the Institut de France in Paris, the Madeleine Lecoq Prize for the Physics theme was awarded to Suheyla Bilgen for her research work on materials for accelerators.

After completing her thesis in collaboration with CERN in Geneva on the study of the dynamic vacuum in the LHC, Suheyla Bilgen continued in this field as a research engineer at the CNRS in the Physics of Accelerator research center at IJCLab. . As part of the MAVERICS team (Materials for Accelerator, dynamic Vacuum studies and innovative Research on superconductIng Cavities), she is interested in the evolution of pressure in the tubes of particle colliders.

These pressure variations are linked to the circulation of particle beams which ionize the residual gas present in these vacuum tubes. The ions and electrons thus produced interact with the walls of the accelerator and limit its performance. These interactions induce on the one hand a desorption (release) of the gases absorbed on the walls which leads to pressure increases in the tube. On the other hand, these interactions create secondary particles (electrons and ions), which leads by avalanche effect to the formation of clouds of electrons: their limitation is one of the major challenges of the LHC storage ring.

Congratulations to Suheyla, whose work has made it possible for the first time to measure the parasitic ions that disturb the LHC beam!

2022-11-16 15:25