Zobrazeno 1 - 10
of 1 985
pro vyhledávání: '"A. Irman"'
Autor:
A. Hannasch, A. Laso Garcia, M. LaBerge, R. Zgadzaj, A. Köhler, J. P. Couperus Cabadağ, O. Zarini, T. Kurz, A. Ferrari, M. Molodtsova, L. Naumann, T. E. Cowan, U. Schramm, A. Irman, M. C. Downer
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Abstract We reconstruct spectra of secondary X-rays from a tunable 250–350 MeV laser wakefield electron accelerator from single-shot X-ray depth-energy measurements in a compact (7.5 × 7.5 × 15 cm), modular X-ray calorimeter made of alternating l
Externí odkaz:
https://doaj.org/article/eaf60a2fc3cd454c90139f4fc9eaa78d
Autor:
T. Kurz, T. Heinemann, M. F. Gilljohann, Y. Y. Chang, J. P. Couperus Cabadağ, A. Debus, O. Kononenko, R. Pausch, S. Schöbel, R. W. Assmann, M. Bussmann, H. Ding, J. Götzfried, A. Köhler, G. Raj, S. Schindler, K. Steiniger, O. Zarini, S. Corde, A. Döpp, B. Hidding, S. Karsch, U. Schramm, A. Martinez de la Ossa, A. Irman
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Particle accelerators based on laser- or electron-driven plasma waves promise compact sources for relativistic electron bunches. Here, Kurz and Heinemann et al. demonstrate a hybrid two-stage configuration, combining the individual features of both a
Externí odkaz:
https://doaj.org/article/50ea584b3fe34925ab5e0db1d7702567
Autor:
T. Ziegler, D. Albach, C. Bernert, S. Bock, F.-E. Brack, T. E. Cowan, N. P. Dover, M. Garten, L. Gaus, R. Gebhardt, I. Goethel, U. Helbig, A. Irman, H. Kiriyama, T. Kluge, A. Kon, S. Kraft, F. Kroll, M. Loeser, J. Metzkes-Ng, M. Nishiuchi, L. Obst-Huebl, T. Püschel, M. Rehwald, H.-P. Schlenvoigt, U. Schramm, K. Zeil
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Abstract We report on experimental investigations of proton acceleration from solid foils irradiated with PW-class laser-pulses, where highest proton cut-off energies were achieved for temporal pulse parameters that varied significantly from those of
Externí odkaz:
https://doaj.org/article/e3f76523dd594bf78c86935a340aa976
Autor:
F. M. Foerster, A. Döpp, F. Haberstroh, K. v. Grafenstein, D. Campbell, Y.-Y. Chang, S. Corde, J. P. Couperus Cabadağ, A. Debus, M. F. Gilljohann, A. F. Habib, T. Heinemann, B. Hidding, A. Irman, F. Irshad, A. Knetsch, O. Kononenko, A. Martinez de la Ossa, A. Nutter, R. Pausch, G. Schilling, A. Schletter, S. Schöbel, U. Schramm, E. Travac, P. Ufer, S. Karsch
Publikováno v:
Physical Review X, Vol 12, Iss 4, p 041016 (2022)
We present experimental results on a plasma wakefield accelerator (PWFA) driven by high-current electron beams from a laser wakefield accelerator (LWFA). In this staged setup stable and high-quality (low-divergence and low energy spread) electron bea
Externí odkaz:
https://doaj.org/article/3fa23bbdddf44168ae7322c4d4f8890e
Autor:
J. P. Couperus Cabadağ, R. Pausch, S. Schöbel, M. Bussmann, Y.-Y. Chang, S. Corde, A. Debus, H. Ding, A. Döpp, F. M. Foerster, M. Gilljohann, F. Haberstroh, T. Heinemann, B. Hidding, S. Karsch, A. Koehler, O. Kononenko, A. Knetsch, T. Kurz, A. Martinez de la Ossa, A. Nutter, G. Raj, K. Steiniger, U. Schramm, P. Ufer, A. Irman
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p L042005 (2021)
We present the experimental demonstration of density downramp injection at a gas-dynamic shock in a beam-driven plasma accelerator. The ultrashort driver electron beam with a peak-current exceeding 10 kA allows operation in the blowout regime and ena
Externí odkaz:
https://doaj.org/article/276346ea088c45bf95b243931f17f040
Autor:
J. M. Krämer, A. Jochmann, M. Budde, M. Bussmann, J. P. Couperus, T. E. Cowan, A. Debus, A. Köhler, M. Kuntzsch, A. Laso García, U. Lehnert, P. Michel, R. Pausch, O. Zarini, U. Schramm, A. Irman
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
Abstract Interaction of relativistic electron beams with high power lasers can both serve as a secondary light source and as a novel diagnostic tool for various beam parameters. For both applications, it is important to understand the dynamics of the
Externí odkaz:
https://doaj.org/article/0c401fd5970e46f3902cdfac46b00a70
Autor:
A. Koehler, R. Pausch, M. Bussmann, J. P. Couperus Cabadağ, A. Debus, J. M. Krämer, S. Schöbel, O. Zarini, U. Schramm, A. Irman
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 9, p 091302 (2021)
Matched beam loading in laser wakefield acceleration, characterizing the state of flattening the accelerating electric field along the bunch, leads to the minimization of energy spread at high-bunch charges. Here, we experimentally demonstrate by ind
Externí odkaz:
https://doaj.org/article/b54992083ee1443cbae0fd6a5f05e02f
Autor:
J. P. Couperus, R. Pausch, A. Köhler, O. Zarini, J. M. Krämer, M. Garten, A. Huebl, R. Gebhardt, U. Helbig, S. Bock, K. Zeil, A. Debus, M. Bussmann, U. Schramm, A. Irman
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Higher beam quality and stability are desired in laser-plasma accelerators for their applications in compact light sources. Here the authors demonstrate in laser plasma wakefield electron acceleration that the beam loading effect can be employed to i
Externí odkaz:
https://doaj.org/article/8dc66a89420f49329ab919d98f9bf9bf
Autor:
G. Raj, O. Kononenko, M. F. Gilljohann, A. Doche, X. Davoine, C. Caizergues, Y.-Y. Chang, J. P. Couperus Cabadağ, A. Debus, H. Ding, M. Förster, J.-P. Goddet, T. Heinemann, T. Kluge, T. Kurz, R. Pausch, P. Rousseau, P. San Miguel Claveria, S. Schöbel, A. Siciak, K. Steiniger, A. Tafzi, S. Yu, B. Hidding, A. Martinez de la Ossa, A. Irman, S. Karsch, A. Döpp, U. Schramm, L. Gremillet, S. Corde
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023123 (2020)
The current filamentation instability is a key phenomenon underpinning various processes in astrophysics, laboratory laser-plasma, and beam-plasma experiments. Here we show that the ultrafast dynamics of this instability can be explored in the contex
Externí odkaz:
https://doaj.org/article/05e37d33ee4342818431dbb29d6878f8
Autor:
Willmann, Anna, Cabadağ, Jurjen Couperus, Chang, Yen-Yu, Pausch, Richard, Ghaith, Amin, Debus, Alexander, Irman, Arie, Bussmann, Michael, Schramm, Ulrich, Hoffmann, Nico
Publikováno v:
Machine Learning and the Physical Sciences 2022 workshop, NeurIPS
Understanding and control of Laser-driven Free Electron Lasers remain to be difficult problems that require highly intensive experimental and theoretical research. The gap between simulated and experimentally collected data might complicate studies a
Externí odkaz:
http://arxiv.org/abs/2303.00657