Search Results - "Doepp, A"
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Multi-objective and multi-fidelity Bayesian optimization of laser-plasma acceleration
Published in Physical review research (01-01-2023)“…Beam parameter optimization in accelerators involves multiple, sometimes competing, objectives. Condensing these individual objectives into a single figure of…”
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2
Physics of High-Charge Electron Beams in Laser-Plasma Wakefields
Published in Physical review. X (01-10-2020)“…Laser wakefield acceleration (LWFA) and its particle-driven counterpart, particle or plasma wakefield acceleration (PWFA), are commonly treated as separate,…”
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3
Dual-energy electron beams from a compact laser-driven accelerator
Published in Nature photonics (01-04-2019)“…Ultrafast pump–probe experiments open the possibility to track fundamental material behaviour, such as changes in electronic configuration, in real time. To…”
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4
High-Brilliance Betatron γ-Ray Source Powered by Laser-Accelerated Electrons
Published in Physical review letters (22-06-2018)“…Recent progress in laser-driven plasma acceleration now enables the acceleration of electrons to several gigaelectronvolts. Taking advantage of these novel…”
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5
Research towards high-repetition rate laser-driven X-ray sources for imaging applications
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (12-11-2018)“…Laser wakefield acceleration of electrons represents a basis for several types of novel X-ray sources based on Thomson scattering or betatron radiation. The…”
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6
Demonstration of a compact plasma accelerator powered by laser-accelerated electron beams
Published in Nature communications (17-05-2021)“…Plasma wakefield accelerators are capable of sustaining gigavolt-per-centimeter accelerating fields, surpassing the electric breakdown threshold in…”
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7
Electron Rephasing in a Laser-Wakefield Accelerator
Published in Physical review letters (09-10-2015)“…An important limit for energy gain in laser-plasma wakefield accelerators is the dephasing length, after which the electron beam reaches the decelerating…”
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8
Demonstration of relativistic electron beam focusing by a laser-plasma lens
Published in Nature communications (16-04-2015)“…Laser-plasma technology promises a drastic reduction of the size of high-energy electron accelerators. It could make free-electron lasers available to a broad…”
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9
Laser-accelerated electron beams at 1 GeV using optically-induced shock injection
Published in Scientific reports (19-07-2023)“…In recent years, significant progress has been made in laser wakefield acceleration (LWFA), both regarding the increase in electron energy, charge and…”
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10
A bremsstrahlung gamma-ray source based on stable ionization injection of electrons into a laser wakefield accelerator
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-09-2016)“…Laser wakefield acceleration permits the generation of ultra-short, high-brightness relativistic electron beams on a millimeter scale. While those features are…”
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11
Direct Observation of Plasma Waves and Dynamics Induced by Laser-Accelerated Electron Beams
Published in Physical review. X (12-03-2019)“…Plasma wakefield acceleration (PWFA) is a novel acceleration technique with promising prospects for both particle colliders and light sources. However, PWFA…”
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12
Stable and High-Quality Electron Beams from Staged Laser and Plasma Wakefield Accelerators
Published in Physical review. X (01-11-2022)“…We present experimental results on a plasma wakefield accelerator (PWFA) driven by high-current electron beams from a laser wakefield accelerator (LWFA). In…”
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13
Observation of Laser Power Amplification in a Self-Injecting Laser Wakefield Accelerator
Published in Physical review letters (22-06-2018)“…We report on the depletion and power amplification of the driving laser pulse in a strongly driven laser wakefield accelerator. Simultaneous measurement of the…”
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14
Hybrid LWFA-PWFA staging as a beam energy and brightness transformer: conceptual design and simulations
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (12-08-2019)“…We present a conceptual design for a hybrid laser-driven plasma wakefield accelerator (LWFA) to beam-driven plasma wakefield accelerator (PWFA). In this…”
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15
Compact laser accelerators for X-ray phase-contrast imaging
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (06-03-2014)“…Advances in X-ray imaging techniques have been driven by advances in novel X-ray sources. The latest fourth-generation X-ray sources can boast large photon…”
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16
Probing ultrafast magnetic-field generation by current filamentation instability in femtosecond relativistic laser-matter interactions
Published in Physical review research (04-05-2020)“…The current filamentation instability is a key phenomenon underpinning various processes in astrophysics, laboratory laser-plasma, and beam-plasma experiments…”
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17
Gas-dynamic density downramp injection in a beam-driven plasma wakefield accelerator
Published in Physical review research (01-10-2021)“…We present the experimental demonstration of density downramp injection at a gas-dynamic shock in a beam-driven plasma accelerator. The ultrashort driver…”
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18
Physics of fully-loaded laser-plasma accelerators
Published in Physical review special topics. PRST-AB. Accelerators and beams (17-06-2015)“…While large efforts have been devoted to improving the quality of electron beams from laser plasma accelerators, often to the detriment of the charge, many…”
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19
Enhancement of x-rays generated by a guided laser wakefield accelerator inside capillary tubes
Published in Applied physics letters (07-05-2012)“…Electrons accelerated in the nonlinear regime in a laser wakefield accelerator experience transverse oscillations inside the plasma cavity, giving rise to…”
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20
Bright x-ray radiation from plasma bubbles in an evolving laser wakefield accelerator
Published in Physical review. Accelerators and beams (01-06-2020)“…We show that the properties of the electron beam and bright x rays produced by a laser wakefield accelerator can be predicted if the distance over which the…”
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