Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Steinmann, Johannes"'
Autor:
Scomparin, Luca, Caselle, Michele, Garcia, Andrea Santamaria, Xu, Chenran, Blomley, Edmund, Dritschler, Timo, Mochihashi, Akira, Schuh, Marcel, Steinmann, Johannes L., Bründermann, Erik, Kopmann, Andreas, Becker, Jürgen, Müller, Anke-Susanne, Weber, Marc
The commissioning and operation of future large-scale scientific experiments will challenge current tuning and control methods. Reinforcement learning (RL) algorithms are a promising solution thanks to their capability of autonomously tackling a cont
Externí odkaz:
http://arxiv.org/abs/2409.16177
Autor:
Miyazaki, Akira, Lofnes, Tor, Caspers, Fritz, Spagnolo, Paolo, Jelonnek, John, Ruess, Tobias, Steinmann, Johannes L., Thumm, Manfred
A dark photon is one of the simplest extensions of the Standard Model of particle physics and can be a dark matter candidate. Dark photons kinetically mix with ordinary photons. The mass range from $10^{-4}$ to $10^{-3}$ eV of such dark photons is un
Externí odkaz:
http://arxiv.org/abs/2212.01139
Autor:
Funkner, Stefan, Niehues, Gudrun, Nasse, Michael J., Bründermann, Erik, Caselle, Michele, Kehrer, Benjamin, Rota, Lorenzo, Schönfeldt, Patrik, Schuh, Marcel, Steffen, Bernd, Steinmann, Johannes L., Weber, Marc, Müller, Anke-Susanne
The description of physical processes with many-particle systems is a key approach to the modeling of countless physical systems. In storage rings, where ultrarelativistic particles are agglomerated in dense bunches, the measurement of their phase-sp
Externí odkaz:
http://arxiv.org/abs/1912.01323
Autor:
Harter, Tobias, Füllner, Christoph, Kemal, Juned N., Ummethala, Sandeep, Steinmann, Johannes L., Brosi, Miriam, Hesler, Jeffrey L., Bründermann, Erik, Müller, Anke-Susanne, Freude, Wolfgang, Randel, Sebastian, Koos, Christian
High-speed communication systems rely on spectrally efficient modulation formats that encode information both on the amplitude and on the phase of an electromagnetic carrier. Coherent detection of such signals typically uses rather complex receiver s
Externí odkaz:
http://arxiv.org/abs/1907.03630
Autor:
Bielawski, Serge, Blomley, Edmund, Brosi, Miriam, Bründermann, Erik, Burkard, Eva, Evain, Clément, Funkner, Stefan, Hiller, Nicole, Nasse, Michael J., Niehues, Gudrun, Roussel, Eléonore, Schedler, Manuel, Schönfeldt, Patrik, Steinmann, Johannes L., Szwaj, Christophe, Walther, Sophie, Müller, Anke-Susanne
Publikováno v:
Scientific Reports 9, 10391 (2019)
In recent and future synchrotron radiation facilities, relativistic electron bunches with increasingly high charge density are needed for producing brilliant light at various wavelengths, from X-rays to terahertz. In such conditions, interaction of e
Externí odkaz:
http://arxiv.org/abs/1902.06157
Autor:
Brosi, Miriam, Steinmann, Johannes L., Blomley, Edmund, Bründermann, Erik, Gethmann, Julian, Kehrer, Benjamin, Mathis, Yves-Laurent, Papash, Alexander, Schedler, Manuel, Schönfeldt, Patrik, Schuh, Marcel, Schwarz, Markus, Caselle, Michele, Rota, Lorenzo, Weber, Marc, Kuske, Peter, Müller, Anke-Susanne
Publikováno v:
Phys. Rev. Accel. Beams 22, 020701 (2019)
At KARA, the KArlsruhe Research Accelerator of the KIT synchrotron, the so called short bunch operation mode allows the reduction of the bunch length down to a few picoseconds. The micro- bunching instability resulting from the high degree of longitu
Externí odkaz:
http://arxiv.org/abs/1807.01145
Autor:
Steinmann, Johannes L., Boltz, Tobias, Brosi, Miriam, Bründermann, Erik, Caselle, Michele, Kehrer, Benjamin, Rota, Lorenzo, Schönfeldt, Patrik, Schuh, Marcel, Siegel, Michael, Weber, Marc, Müller, Anke-Susanne
Publikováno v:
Phys. Rev. Accel. Beams 21, 110705 (2018)
Electron accelerators and synchrotrons can be operated to provide short emission pulses due to longitudinally compressed or sub-structured electron bunches. Above a threshold current, the high charge density leads to the micro-bunching instability an
Externí odkaz:
http://arxiv.org/abs/1710.09568
Autor:
Kehrer, Benjamin, Brosi, Miriam, Steinmann, Johannes L., Blomley, Edmund, Bründermann, Erik, Caselle, Michele, Funkner, Stefan, Hiller, Nicole, Nasse, Michael J., Niehues, Gudrun, Rota, Lorenzo, Schedler, Manuel, Schönfeldt, Patrik, Schuh, Marcel, Schütze, Paul, Weber, Marc, Müller, Anke-Susanne
Publikováno v:
Phys. Rev. Accel. Beams 21, 102803 (2018)
To understand and control the dynamics in the longitudinal phase space, time-resolved measurements of different bunch parameters are required. For a reconstruction of this phase space, the detector systems have to be synchronized. This reconstruction
Externí odkaz:
http://arxiv.org/abs/1709.08973
Autor:
Schönfeldt, Patrik, Brosi, Miriam, Schwarz, Markus, Steinmann, Johannes L., Müller, Anke-Susanne
Publikováno v:
Phys. Rev. ST Accel. Beams 20, 030704 (2017)
The numerical solution of the Vlasov-Fokker-Planck equation is a well established method to simulate the dynamics, including the self-interaction with its own wake field, of an electron bunch in a storage ring. In this paper we present Inovesa, a mod
Externí odkaz:
http://arxiv.org/abs/1611.05293
Autor:
Brosi, Miriam, Steinmann, Johannes L., Blomley, Edmund, Bründermann, Erik, Caselle, Michele, Hiller, Nicole, Kehrer, Benjamin, Nasse, Michael J., Rota, Lorenzo, Schedler, Manuel, Schönfeldt, Patrik, Schuh, Marcel, Schwarz, Markus, Weber, Marc, Müller, Anke-Susanne
Publikováno v:
Phys. Rev. ST Accel. Beams 19, 110701 (2016)
Dedicated optics with extremely short electron bunches enable synchrotron light sources to generate intense coherent THz radiation. The high degree of spatial compression in this so-called low-alpha optics entails a complex longitudinal dynamics of t
Externí odkaz:
http://arxiv.org/abs/1605.00536