ORCID Profile
0000-0002-0769-0425
Current Organisations
Nottingham Trent University
,
University of Oslo
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Publisher: Springer Science and Business Media LLC
Date: 08-01-2021
DOI: 10.1038/S41467-020-20676-1
Abstract: A Correction to this paper has been published: 0.1038/s41467-020-20676-1
Publisher: Springer Science and Business Media LLC
Date: 25-11-2020
DOI: 10.1038/S41467-020-19811-9
Abstract: Plasma-wakefield accelerators driven by intense particle beams promise to significantly reduce the size of future high-energy facilities. Such applications require particle beams with a well-controlled energy spectrum, which necessitates detailed tailoring of the plasma wakefield. Precise measurements of the effective wakefield structure are therefore essential for optimising the acceleration process. Here we propose and demonstrate such a measurement technique that enables femtosecond-level (15 fs) s ling of longitudinal electric fields of order gigavolts-per-meter (0.8 GV m −1 ). This method—based on energy collimation of the incoming bunch—made it possible to investigate the effect of beam and plasma parameters on the beam-loaded longitudinally integrated plasma wakefield, showing good agreement with particle-in-cell simulations. These results open the door to high-quality operation of future plasma accelerators through precise control of the acceleration process.
Publisher: American Physical Society (APS)
Date: 29-12-2021
Publisher: American Physical Society (APS)
Date: 07-11-2018
Publisher: Springer Science and Business Media LLC
Date: 02-03-2022
DOI: 10.1038/S41586-021-04348-8
Abstract: The interaction of intense particle bunches with plasma can give rise to plasma wakes 1,2 capable of sustaining gigavolt-per-metre electric fields 3,4 , which are orders of magnitude higher than provided by state-of-the-art radio-frequency technology 5 . Plasma wakefields can, therefore, strongly accelerate charged particles and offer the opportunity to reach higher particle energies with smaller and hence more widely available accelerator facilities. However, the luminosity and brilliance demands of high-energy physics and photon science require particle bunches to be accelerated at repetition rates of thousands or even millions per second, which are orders of magnitude higher than demonstrated with plasma-wakefield technology 6,7 . Here we investigate the upper limit on repetition rates of beam-driven plasma accelerators by measuring the time it takes for the plasma to recover to its initial state after perturbation by a wakefield. The many-nanosecond-level recovery time measured establishes the in-principle attainability of megahertz rates of acceleration in plasmas. The experimental signatures of the perturbation are well described by simulations of a temporally evolving parabolic ion channel, transferring energy from the collapsing wake to the surrounding media. This result establishes that plasma-wakefield modules could be developed as feasible high-repetition-rate energy boosters at current and future particle-physics and photon-science facilities.
Publisher: American Physical Society (APS)
Date: 06-01-2021
Publisher: Frontiers Media SA
Date: 12-07-2017
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Carl A. Lindstrøm.