TY - JOUR AU - Knetsch, Alexander AU - Sheeran, Bridget AU - Boulton, Lewis AU - Niknejadi, Pardis AU - Poder, Kristjan AU - Schaper, Lucas AU - Zeng, Ming AU - Bohlen, Simon AU - Boyle, Gregory James AU - Bruemmer, Theresa Karoline AU - Chappell, James AU - D'Arcy, R. AU - Diederichs, Severin AU - Foster, Brian AU - Garland, Matthew James AU - Gonzalez Caminal, Pau AU - Hidding, Bernhard AU - Libov, Vladislav AU - Lindstrøm, Carl Andreas AU - Martinez de la Ossa, Alberto AU - Meisel, Martin AU - Parikh, Trupen AU - Schmidt, Bernhard AU - Schröder, Sarah AU - Tauscher, Gabriele AU - Wesch, Stephan AU - Winkler, Paul Viktor AU - Wood, Jonathan Christopher AU - Osterhoff, Jens TI - Stable witness-beam formation in a beam-driven plasma cathode JO - Physical review accelerators and beams VL - 24 IS - 10 SN - 1098-4402 CY - College Park, MD PB - American Physical Society M1 - PUBDB-2021-02678 M1 - arXiv:2007.12639 M1 - DESY-20-125 SP - 101302 PY - 2021 N1 - Phys. Rev. Accel. Beams 24, 101302 (2021). 11 pages, 9 figures AB - Electron beams to be accelerated in beam-driven plasma wakes are commonly formed by a photocathode and externally injected into the wakefield of a preceding bunch. Alternatively, using the plasma itself as a cathode offers the possibility of generating ultrashort, low-emittance beams by trapping and accelerating electrons from the ambient plasma background. Here, we present a beam-driven plasma cathode realized via laser-triggered density-downramp injection, showing stable beam formation over more than a thousand consecutive events with an injection probability of 95 KW - plasma: wake field (INSPIRE) KW - electron: beam (INSPIRE) KW - accelerator: wake field (INSPIRE) KW - beam: injection (INSPIRE) KW - stability (INSPIRE) KW - efficiency (INSPIRE) KW - performance (INSPIRE) KW - beam emittance (INSPIRE) KW - DESY Lab (INSPIRE) KW - electrode (INSPIRE) KW - plasma: density (INSPIRE) KW - electron: velocity (INSPIRE) KW - electron: energy spectrum (INSPIRE) KW - bibliography (INSPIRE) LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000706475500001 DO - DOI:10.1103/PhysRevAccelBeams.24.101302 UR - https://bib-pubdb1.desy.de/record/459686 ER -