R
Robert H. Siemann
Researcher at Stanford University
Publications - 154
Citations - 3352
Robert H. Siemann is an academic researcher from Stanford University. The author has contributed to research in topics: Particle accelerator & Plasma acceleration. The author has an hindex of 25, co-authored 154 publications receiving 3140 citations. Previous affiliations of Robert H. Siemann include University of Southern California & Cornell University.
Papers
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Journal ArticleDOI
Energy doubling of 42 GeV electrons in a metre-scale plasma wakefield accelerator
I. Blumenfeld,C. E. Clayton,Franz-Josef Decker,Mark Hogan,Chengkun Huang,Rasmus Ischebeck,R. Iverson,Chan Joshi,Tom Katsouleas,Neil Kirby,Wei Lu,K. A. Marsh,Warren Mori,Patric Muggli,Erdem Oz,Robert H. Siemann,Dieter Walz,Miaomiao Zhou +17 more
TL;DR: An energy gain of more than 42 GeV is achieved in a plasma wakefield accelerator of 85 cm length, driven by a 42GeV electron beam at the Stanford Linear Accelerator Center (SLAC), in excellent agreement with the predictions of three-dimensional particle-in-cell simulations.
Journal ArticleDOI
Multi-GeV energy gain in a plasma-wakefield accelerator.
Mark Hogan,C.D. Barnes,C. E. Clayton,F.-J. Decker,S. Deng,P. Emma,Chengkun Huang,R. H. Iverson,D. K. Johnson,C. Joshi,Tom Katsouleas,Patrick Krejcik,Wei Lu,K. A. Marsh,Warren Mori,Patric Muggli,C.L. O'Connell,Erdem Oz,Robert H. Siemann,D. Walz +19 more
TL;DR: A plasma-wakefield accelerator has accelerated particles by over 2.7 GeV in a 10 cm long plasma module, driving a large amplitude plasma wake that in turn accelerates particles in the back of the bunch by more than 2.8 GeV.
Journal ArticleDOI
Electron scattering at 4° with energies of 4.5-20 GeV
S. Stein,W. B. Atwood,Elliott D. Bloom,R.L.A. Cottrell,DeStaebler Hc,C. L. Jordan,H. Piel,C. Y. Prescott,Robert H. Siemann,Richard E. Taylor +9 more
TL;DR: In this paper, the authors present the results of the analysis of a single-arm inelastic-electron-scattering experiment at an angle of 4.5mm.
Journal ArticleDOI
Ionization-induced electron trapping in ultrarelativistic plasma wakes
Erdem Oz,S. Deng,Tom Katsouleas,Patric Muggli,C.D. Barnes,I. Blumenfeld,F.-J. Decker,P. Emma,Mark Hogan,Rasmus Ischebeck,R. H. Iverson,Neil Kirby,Patrick Krejcik,C.L. O'Connell,Robert H. Siemann,D. Walz,D. W. Auerbach,C. E. Clayton,Chengkun Huang,D. K. Johnson,Chan Joshi,Wei Lu,K. A. Marsh,Warren Mori,Meng Zhou +24 more
TL;DR: The experimentally inferred trapping threshold is at a wake amplitude of 36 GV/m, in good agreement with an analytical model and PIC simulations, and the onset of trapping of electrons born inside a highly relativistic, 3D beam-driven plasma wake is investigated.
Journal ArticleDOI
Breakdown limits on Gigavolt-per-meter electron-beam-driven wakefields in dielectric structures.
M. C. Thompson,M. C. Thompson,H. Badakov,Alan M. Cook,James Rosenzweig,R. Tikhoplav,Gil Travish,I. Blumenfeld,Mark Hogan,Rasmus Ischebeck,Neil Kirby,Robert H. Siemann,D. Walz,Patrick Muggli,Alan L. Scott,R. B. Yoder +15 more
TL;DR: First measurements of the breakdown threshold in a dielectric subjected to GV/m wakefields produced by short (30-330 fs), 28.5 GeV electron bunches have been made and correlation of structure damage to beam-induced breakdown is established using an array of postexposure inspection techniques.