Innovative Materials sustaining extreme beams for rare targets

22.06.2021 – FLNR Scientific Seminar ” Innovative Materials sustaining extreme beams for rare targets”, 15-00, FlerovLab Conference Hall and online WebEx.

Speaker:Benoît GALL, IPHC Strasbourg – USIAS Strasbourg University

Our present day understanding of atomic physics and nuclear cohesion is based on a long tradition of confrontation between experimental data and theoretical models. The quest of new elements is at the limits of our models, our knowledge and our technologies. While the heaviest elements such as flerovium, moscovium, livermorium, tenessine, and oganesson where discovered in Dubna using the heaviest available actinide targets bombarded with ⁴⁸Ca beams, next elements require ⁵⁰Ti, ⁵¹V and ⁵⁴Cr beams. Subsequent dropping down in cross section has therefore to be balanced by a significant increase in beam intensity going from 1 to 10 pµA.

New SHE-Factory in FLNR-Dubna provide now beams up to 10 pμA. The power induced by energy loss in the beam spot will be unsustainable for standard target backing materials. Quest of existing new material or development of innovative foils is of utmost importance for the future of SHE studies.

After an introduction on the prospects for these intense beams, their effects on target materials will be detailed. Finally a project for a study of several solutions for new target backing materials will be discussed.