Plasma processing has been used reliably to recover SRF cavity performance for a decade, starting from the very first successful application at ORNL for SNS multicell cavities. Recently HOMs plasma ignition has allowed plasma processing of LCLS-II and CEBAF cavities, overcoming coupling limitations at room temperature imposed by the fundamental passband. The reason that sparked the interest in plasma cleaning is its capability of recovering cavities performance in-situ, in the accelerator tunnel, without requiring a lot of man-hours for cryomodule disassembly and cavity re-processing. In this talk past and present experiences of plasma cleaning will be presented, along with some potential future developments for this technique.

This is an intensive summer school covering uncertainty quantification and surrogate model development in nuclear theory and experiment. The school will focus on practical applications of uncertainty quantification to topics in experimental design and control, theoretical model quantification and creation, as well as a primer in statistics -- all of high relevance for the scientific program at FRIB.

The IReNA Workshop on Weak Interactions in Nuclear Astrophysics will be held at the Facility for Rare Isotope Beams (FRIB) on the campus of Michigan State University (MSU) in East Lansing, MI USA. Reactions driven by the weak nuclear force (electron captures, B decays, neutrino-induced reactions) play important roles in many astrophysical phenomena, such as the cataclysmic events of neutron-star mergers, core-collapse, and thermonuclear supernovae, as well as in heating and cooling cycles of neutron-star crusts. In addition, reactions mediated by the weak force play an important role in the detection of multi-messenger signals, for example, neutrinos. Hence, the accurate estimation of weak reaction rates and incorporation in astrophysical simulations is important for understanding and modeling astrophysical events and interpreting their multi-messenger signals that can be detected on Earth. This workshop will bring together the IRENA weak-interactions working group and collaborators to accomplish the following goals: Identifying key unresolved questions and needs related to weak interaction data necessary for astrophysical modeling Identifying what expertise is available amongst IRENA partner networks and how such expertise can be shared to address items identified in item 1 Identify what expertise and tools/processes are missing to solve key questions and provide necessary weak-interaction data, and create a plan to address the gaps Defining across-network activities to address items identified under 1-3. The focus of such activities will be on concrete projects that require the collaboration between researchers in different networks that would be much harder to pursue if such projects were carried out by (groups in) isolated networks. An important aspect of the workshop is to bring together experimentalists, astrophysical modelers, nuclear theorists, observers, and researchers working on the interface between these areas