| Simultaneous operation of two soft x-ray free-electron lasers driven by one linear accelerator B Faatz, E Plönjes, S Ackermann, A Agababyan, V Asgekar, V Ayvazyan, ... New Journal of physics 18 (6), 062002, 2016 | 165 | 2016 |
| Generation of coherent 19-and 38-nm radiation at a free-electron laser directly seeded at 38 nm S Ackermann, A Azima, S Bajt, J Bödewadt, F Curbis, H Dachraoui, ... Physical review letters 111 (11), 114801, 2013 | 131 | 2013 |
| Flexible and Coherent Soft X-ray Pulses at High Repetition Rate: Current Research and Perspectives L Schaper, S Ackermann, E Allaria, P Amstutz, K Baev, M Beye, C Gerth, ... Applied Sciences 11 (20), 9729, 2021 | 24 | 2021 |
| Novel method for the generation of stable radiation from free-electron lasers at high repetition rates S Ackermann, B Faatz, V Grattoni, MM Kazemi, T Lang, C Lechner, ... Physical Review Accelerators and Beams 23 (7), 071302, 2020 | 21 | 2020 |
| Status of the FLASH II Project K Honkavaara, S Ackermann, V Ayvazyan, N Baboi, V Balandin, ... WEPD07, textitProc. FEL 12, 2013 | 20 | 2013 |
| Measurements and simulations of seeded electron microbunches with collective effects K Hacker, R Molo, S Khan, LL Lazzarino, C Lechner, T Maltezopoulos, ... Physical Review Special Topics-Accelerators and Beams 18 (9), 090704, 2015 | 12 | 2015 |
| First direct seeding at 38 nm C Lechner, A Azima, J Bödewadt, M Drescher, E Hass, U Hipp, ... Proceeding of the FEL Conference, 2012 | 10 | 2012 |
| First Demonstration of Parallel Operation of a Seeded FEL and a SASE FEL S Ackermann, P Amstutz, F Christie, E Ferrari, S Hartwell, MM Kazemi, ... 40th Int. Free Electron Laser Conf.(FEL’22), Trieste, Italy, 2022 | 9 | 2022 |
| Recent results from FEL seeding at FLASH J Bödewadt, S Ackermann, R Aßmann, N Ekanayake, B Faatz, G Feng, ... TUBC3, These Proceedings, IPAC 15, 2015 | 9 | 2015 |
| sFLASH-present status and commissioning results S Ackermann, A Azima, J Bödewadt, F Curbis, M Drescher, E Hass, ... Proceedings of IPAC2011, San Sebastián, Spain, 923-927, 2011 | 9 | 2011 |
| Modal analysis of a seeded free-electron laser S Ackermann, B Faatz, V Miltchev Physical Review Special Topics-Accelerators and Beams 16 (10), 100702, 2013 | 8 | 2013 |
| Optimization of HHG seeding at FLASH II S Ackermann, B Faatz, V Miltchev, J Rossbach International Free-Electron Laser Conference, TUPD11, 2012 | 8 | 2012 |
| Advanced scheme to generate MHz, fully coherent FEL pulses at nm wavelength G Paraskaki, S Ackermann, B Faatz, G Geloni, T Lang, F Pannek, ... Applied Sciences 11 (13), 6058, 2021 | 7 | 2021 |
| Results and perspectives on the FEL seeding activities at FLASH J Bödewadt, C Lechner Proc. FEL’13, 2013 | 7 | 2013 |
| Seeding R&D at sFLASH C Lechner, S Ackermann, RW Assmann, B Faatz, V Grattoni, I Hartl, ... 39th Int. Free Electron Laser Conf.(FEL’19), Hamburg, Germany, 2019 | 6 | 2019 |
| Low level RF control implementation and simultaneous operation of two FEL undulator beamlines at FLASH V Ayvazyan, S Ackermann, J Branlard, B Faatz, M Grecki, O Hensler, ... Proc. of ICALEPCS2015 (Melbourne, Australia), 42-5, 2015 | 6 | 2015 |
| First Lasing of an HGHG Seeded FEL at FLASH K Hacker, S Khan, R Molo, TU DELTA, GS Ackermann, RW Assmann, ... Proc. Intern. FEL 2015 Conf, 646-649, 2015 | 6 | 2015 |
| Simultaneous operation of a multi beamline FEL facility B Faatz, S Ackermann, V Ayvazyan, W Decking, C Grün, K Klose, F Obier, ... | 6 | 2012 |
| Impact of electron beam energy chirp on seeded FELs G Paraskaki, S Ackermann, B Faatz, V Grattoni, C Lechner, J Zemella, ... 39th Int. Free Electron Laser Conf.(FEL’19), Hamburg, Germany, 2019 | 5 | 2019 |
| Measurements of the timing stability at the FLASH1 seeding experiment C Lechner, S Khan, S Ackermann, G Angelova-Hamberg, ... 36th International Free Electron Laser Conference, 2014 | 5 | 2014 |
