The 19th International Conference on RF Superconductivity, SRF2019, took place at the Hilton Hotel in Dresden, Germany from Sunday, 30 June to Friday, 5 July, 2019. Tutorial sessions took place during the three days preceding the conference from 27-29 June, 2019. SRF2019 was hosted by the Helmholtz-Zentrum Dresden-Rossendorf (HZDR).

Dresden as an exceptionally beautiful city was well placed to host an international conference. The venue, overlooking the Elbe river and the famous Frauenkirche, was ideally located in the heart of the historic city enjoying easy access to all major monuments. Preceded by a guided tour of the city, the conference dinner took place during a cruise on the River Elbe to the city of Pillnitz. It concluded with a splendid firework display.

The conference brought together more than 330 attendees, including international delegates from 16 countries, and 12 industrial exhibitors. 28 students received grants to attend the conference, and 40 students presented their work during the special student poster session on the Sunday afternoon.

A total of 67 invited oral presentations and about 300 posters were presented at the conference, and 8 JACoW editors, who began working on the Thursday preceding the conference, processed the 263 papers published in these proceedings.

The conference was organized into 11 sessions; three poster sessions were arranged on Monday, Tuesday and Thursday afternoons respectively. All other sessions were spread through Monday to Friday morning.

Three young investigator prizes, decided by the International Program Committee and honored during the closing ceremony on the Friday, were awarded for the best poster presented during the student poster session on the Sunday afternoon, and the two best orals of the conference, all presented by young investigators. Decisive for the nominations was that graduation to PhD was no more than 3 years prior to the conference. The prizes were awarded respectively to:

• Guilherme Dalla Lana Semione (DESY) for his poster presentation (THP005, SUSP040) entitled "Near-Surface Region of Nb(100) During Thermal Treatments Relevant for Superconducting Radio-Frequency Cavities",
• Bianca Giaccone (Fermilab and Illinois Institute of Technology) for her oral presentation (FRCAB7) entitled "Plasma Processing to Reduce Field Emission in LCLS-II 1.3 GHz SRF Cavities" and
• Ryan D. Porter (Cornell University) for his oral presentation (THFUA5) entitled "Field Limitation in Nb3Sn Cavities"

The success of SRF2019 was due to the excellent collaboration between the international teams of the IPC and the LOC. The work and enthusiasm of the participants, as well as on the continuous support of societies, institutes and laboratories worldwide contribute hugely also to the success of all SRF events!

It was a pleasure to host you at SRF2019.

Peter Michel, Conference Chair
Petra Neumann, SRF2019 Coordinator
André Arnold, Local Chair