First data from an e+e- machine with PLUME, an ultra-light system based on CMOS pixel sensors

by Prof. Jerome Baudot (IPHC-CNRS)

Monday 4 Jun 2018, 10:00 → 11:00 Asia/Shanghai

B326 (IHEP)

CMOS pixel sensors have now been established as an important detector technology for high-energy physics. One of the key advantage they offer for tracking devices reside in their extreme thinness. The material budget being one of the important requirements of a vertex detector at the future International Linear Collider, the PLUME development was set to exploit CMOS pixel sensors with a target of 0.15% of radiation length per measurement point. Several double-sided layers have been produced and thoroughly tested in test beams. Taking the opportunity of the starting new e+e- SuperKEKB collider in Japan, two PLUME ladders were installed in the location of the future vertex detector of Belle II for the first year of data taking. After having introduced the concepts of PLUME design, we will report on the first data observed with PLUME at SuperKEKB and discuss the prospects for development of ultra-light detection layers based on CMOS pixel sensors. About the speaker: Jerome Baudot obtained his PhD in 1997 from the University of Paris, studying B-physics with the DELPHI experiment at the LEP collider. The same year, he joined the Strasbourg laboratory to work on heavy-ion physics with the preparation of the ALICE experiment at LHC and the STAR experiment at RHIC, for which he developed and operated a silicon strip detector. Since 2006, Jerome Baudot’s research focuses on the R&D on CMOS pixel sensors and related detection systems for various high-energy physics experiments (STAR, ALICE, Belle II, CBM, ILC) and other scientific applications (dosimetry, hadrontherapy, X-ray imaging). In 2017, he joined the Belle II experiment for parallel physics analysis activities.

Slides plume_J-Baudot_IHEP_2018-06-04.pdf