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Official TWISMA Kick-Off Meeting held in CERN

February 1, 2023


The TWISMA project was officially launched at a kick-off meeting held in CERN, Geneva, Switzerland, on 20th January 2023. The meeting was held in hybrid offline-online mode via Zoom, making it possible for Ukrainian researchers who were not able to be present in person, to join the discussion.


Dr. Oleg Sidletskiy (Institute for Scintillation Materials NAS of Ukraine, coordinator of the project) overviewed the aim and tasks of the project, with a focus on the deliverables and milestones, which should be achieved in 2023. Also, Dr. Sidletskiy overviewed the status of works on garnet and BGSO crystals in ISMA.


Dr. Etiennette Auffray, project lead from CERN addressed the activities of her team in CERN in R&D on inorganic scintillation materials for novel ionizing radiation detectors for use in high-energy physics, medical imaging and industrial applications.


Dr. Kheirreddine Lebbou, project lead from ILM CNRS, presented the status of works on the growth of GAGG:Ce and other garnet scintillators in ILM CNRS and further research plans in the frame of TWISMA.


The project aims to conduct exploratory research on innovative calorimeters for high-energy physics based on advanced scintillation materials. Calorimeters are key components of detectors - used in high-energy experiments for the precise energy measurement of particles. The high luminosity LHC foreseen for 2028 – as well as new collider projects currently under study (e.g. high-intensity electron-positron collider, extreme energy proton-proton collider and muon collider) - will require detectors capable of withstanding very high collision rates. Such detectors will need to demonstrate excellent energy and position resolution, as well as high radiation tolerance and precise timing resolution well beyond the current state-of-the-art.


Within TWISMA’s preparatory research project, the Twinning partners will focus on developing advanced scintillation materials for homogeneous and sampling calorimeters. Namely, they will investigate ways to improve the scintillation properties of two types of advanced inorganic scintillating crystal - Ce-doped garnets and bismuth germanate-silicate oxides (Bi4Ge3-xSixO12) - by optimising the crystal growth production processes in ISMA and ILM CNRS. The prototype of the calorimeter based on the developed crystalline materials will be designed and tested in CERN.


In addition to the scientific and technological aspects, the Twinning scheme strongly focuses on raising the research profile and boosting the development of the Ukrainian institute involved in the project, with the support and collaboration of the partners.


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