Development and application of electron beam optical diagnostics for the multi-turn ERL of the Novosibirsk FEL facility. (5th June 2020) - Getmanov, Ya.; Borin, V.; Dorokhov, V.; Matveev, A.; Meshkov, O.; Mickailov, A.; Reshetov, D.; Shevchenko, O.; Vinokurov, N.