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We propose and demonstrate a method for the adaptive wavefront correction of dynamic multimode fiber beams for the first time. The wavefront of incident beam is reconstructed in real-time based on the complete modal information, which…

We describe a method of reconstructing air showers induced by cosmic rays using deep learning techniques. We simulate an observatory consisting of ground-based particle detectors with fixed locations on a regular grid. The detector's…

Instrumentation and Methods for Astrophysics · Physics 2017-11-01 Martin Erdmann , Jonas Glombitza , David Walz

Laser and beam driven wakefields promise orders of magnitude increases in electric field gradients for particle accelerators for future applications. Key areas to explore include the emittance properties of the generated beams and…

New techniques for the optical generation of plasma waveguides -- optical fibres for ultra-intense light pulses -- have become vital to the advancement of multi-GeV laser wakefield acceleration. Here, we demonstrate the fabrication and…

Plasma Physics · Physics 2025-03-04 N. Tripathi , B. Miao , A. Sloss , E. Rockafellow , J. E. Shrock , S. W. Hancock , H. M. Milchberg

Plasma wake-field acceleration experiments are performed at the SPARC LAB test facility by using a gas-filled capillary plasma source composed of a dielectric capillary. The electron can reach GeV energy in a few centimeters, with an…

Multistage transistor amplifiers can be effectively modeled as network of dynamic systems where individual amplifier stages interact through couplings that are dynamic in nature. Using circuit analysis techniques, we show that a large class…

Systems and Control · Electrical Eng. & Systems 2025-08-08 Mohammed Tuhin Rana , Mishfad Shaikh Veedu , Murti V. Salapaka

In this paper, wakefields driven by a relativistic electron beam in a cold homogeneous plasma is studied using 2-D fluid simulation techniques. It has been shown that in the limit when the transverse size of a rigid beam is greater than the…

Plasma Physics · Physics 2019-09-24 Ratan Kumar Bera , Devshree Mandal , Amita Das , Sudip Sengupta

In this work, we propose a denoising diffusion generative model (DDGM) trained with healthy electrocardiogram (ECG) data that focuses on ECG morphology and inter-lead dependence. Our results show that this innovative generative model can…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Gabriel V. Cardoso , Lisa Bedin , Josselin Duchateau , Rémi Dubois , Eric Moulines

We present a broadly applicable in situ method for profiling ion beams using electrostatic deflectors and a Faraday cup. By deconvolving the detector geometry from the resulting current profiles, spatially resolved absolute current density…

In a laser wakefield accelerator (LWFA), an intense laser pulse excites a plasma wave that traps and accelerates electrons to relativistic energies. When the pulse overlaps the accelerated electrons, it can enhance the energy gain through…

Photomultiplier tubes (PMTs) are widely used in particle and nuclear physics experiments. The reconstruction of PMT waveforms is a fundamental task in these experiments, where accurate extraction of photoelectron (PE) multiplicities and…

High Energy Physics - Experiment · Physics 2026-05-29 Yiming Xu , Youwen Fan , Siyu Chen , Hongyue Duyang , Teng Li , Yaoguang Wang

Plasma wakefield acceleration is a groundbreaking technique for accelerating particles, capable of sustaining gigavolt-per-meter accelerating fields. Understanding the physical mechanisms governing the recovery of plasma accelerating…

Plasma Physics · Physics 2026-02-04 G. Parise , A. Cianchi , M. Galletti , F. Guglietta , R. Pompili , A. R. Rossi , M. Sbragaglia , D. Simeoni

Dielectric lined waveguides are under extensive study as accelerating structures that can be excited by electron beams. Rectangular dielectric structures are used both in proof of principle experiments for new accelerating schemes and for…

Accelerator Physics · Physics 2017-03-14 Ilia L. Sheinman , Yulia S. Sheinman

We present a novel method for aligning a laser ionized plasma source to a pair of ultra-relativistic electron beams that comprise a plasma wakefield accelerator (PWFA). We achieve alignment by analyzing the plasma afterglow light observed…

Density dowmramp injection has been demonstrated to be an elegant and efficient approach for generating high quality electron beams in laser wakefield accelerators. Yet, the charge of the produced beam is tens of pC per Joule of laser…

Plasma Physics · Physics 2025-03-05 Celine Hue , Yang Wan , Eitan Y. Levine , Victor Malka

The paper presents a study of wakefield generation and electron injection via propagation of radially polarized laser pulses in homogeneous pre-ionized plasma. The analytical study is based on Lorentz force and continuity equations.…

Plasma Physics · Physics 2025-09-10 Shivani Aggarwal , Saumya Singh , Dinkar Mishra , Bhupesh Kumar , Pallavi Jha

In the frame of laser-driven wakefield acceleration, the main characteristics oflaser propagation and plasma wave excitation are described, with an emphasis onthe role of propagation distance for electron acceleration. To…

Accelerator Physics · Physics 2017-05-31 B. Cros

The photon flux resulting from high-energy electron beam interactions with high field systems, such as in the upcoming FACET-II experiments at SLAC National Accelerator Laboratory, may give deep insight into the electron beam's underlying…

Accelerator Physics · Physics 2023-09-26 M. Yadav , M. Oruganti , S. Zhang , B. Naranjo , G. Andonian , Y. Zhuang , Ö. Apsimon , C. P. Welsch , J. B. Rosenzweig

Autoresonant phase-locking of the plasma wakefield to the beat frequency of two driving lasers offers advantages over conventional wakefield acceleration methods, since it requires less demanding laser parameters and is robust to variations…

Plasma Physics · Physics 2024-02-12 M. Luo , C. Riconda , I. Pusztai , A. Grassi , J. S. Wurtele , T. Fülöp

Longitudinal phase space manipulation is a critical and necessary component for advanced acceleration concepts, radiation sources and improving performances of X-ray free electron lasers. Here we present a simple and versatile method to…

Accelerator Physics · Physics 2021-01-04 Frank Mayet , Ralph Assmann , Francois Lemery
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