Upcoming seminars

Seminars at DIFFER cover a wide range of topics and are held on Thursdays at 11.15 AM in the seminar room of the institute (unless otherwise stated). Seminars are open to everybody. If you are interested in visiting a DIFFER seminar or want to subscribe to our mailing list, please follow the instructions for external visitors.

List all past seminars organized at DIFFER

Robert Goldston
March 23rd 2018
11:15 to 12:15
There have been major developments recently in the understanding of the very edge of tokamak plasmas. New experimental analyses, coupled with new heuristic theoretical understanding, has led to a simple and accurate model for the width of the narrow region of plasma that is scraped off the plasma edge and ultimately strikes material surfaces, the Scrape Off Layer or SOL. Furthermore, the model predicts instability at the edge, due to the strong pressure gradient in the SOL, at just the point in edge density where good plasma confinement is experimentally found to be lost. It is possible to deduce from these results the scaling for the density of impurities needed to radiate away the power from a tokamak fusion power system. New ideas are now being developed to provide a low-Z impurity, lithium, in the form of a dense vapor cloud localized at a distance from the main plasma, to allow for robust dissipation of the SOL heat flux, and a collaboration is under development between PPPL and Magnum-PSI to test this concept.
Laetitia Ouillet
March 29th 2018
11:15 to 12:15
Please note: Due to unavailability of the speaker this seminar will be rescheduled to a later date.
Marnix Wagemaker
April 5th 2018
11:15 to 12:15
abstract will follow soon
Bastiaan Braams
April 12th 2018
11:15 to 12:15
abstract will follow soon
Svetlana Ratynskaia
April 26th 2018
11:30 to 12:30
abstract will follow soon