- A. Keloth (CFEL)
- B. Credidio (Inst. of sciences and chemical Engineering, Lausanne)
- B. Sarler (Faculty of Mechanical Engineering, Ljubljana)
- C. Goy (DESY)
- D. Deangelis (FERMI)
- E. Beale (PSI)
- G. Woo Lee (Frontier of Extreme Physics, Republic of Korea)
- H. Han (SEC, EuXFEL)
- H. Wang (FXE, EuXFEL)
- K. Dorner (SEC, EuXFEL)
- L. Adriano (SCS, EuXFEL)
- M. Blum (ALS)
- M. Heymann (Bio, Uni-Stuttgart)
- M. Naumova (DESY)
- M. Trebbin (BioXFEL, State University, Buffalo)
- O. Kornilov (Max-Born, Berlin)
- R. Graceffa (EuXFEL)
- R. de Wijn (SPB, EuXFEL)
- R. Sierra (LCLS)
- S. Goede (HED, EuXFEL)
- S. Petter (Imperial Colledge, London)
- T. Gallo (MAX IV)
