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Atomic and Laser Physics
Credit: Jack Hobhouse

Dr James Chappell

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Research theme

  • Accelerator physics
  • Lasers and high energy density science
  • Plasma physics

Sub department

  • Atomic and Laser Physics
james.chappell@physics.ox.ac.uk
Clarendon Laboratory, room Simon
ORCID
Dr Chappell awarded Culham Thesis Prize
  • About
  • Publications

I am a post-doctoral research assistant within the laser-plasma accelerators group. My current research involves studying novel techniques for electron-injection into low-density plasma channels and the production of structures suitable for guiding high-intensity laser pulses over extended distances.

I joined the group in the summer of 2021 following the completion of my PhD where I studied beam-driven plasma wakefield acceleration at AWAKE and FLASHForward. During my PhD I investigated the evolution of plasma wakefields over extended timescales with a view to studying and addressing the fundamental physics processes that will limit the achievable repetition-rate of this novel technology.

Research interests

Laser Wakefield Acceleration
Novel particle acceleration techniques

Selected publications

Resonant excitation of plasma waves in a plasma channel

Physical Review Research American Physical Society 6:2 (2024) L022001
Aimee Ross, James Chappell, John Van De Wetering, James Cowley, Emily Archer, Nicolas Bourgeois, L Corner, Dr Emerson, Linus Feder, Xj Gu, Oscar Jakobsson, H Jones, Alexander Picksley, L Reid, Wei-Ting Wang, Roman Walczak, Simon Hooker

All-optical GeV electron bunch generation in a laser-plasma accelerator via truncated-channel injection.

Physical Review Letters American Physical Society 131:24 (2023) 245001
A Picksley, J Chappell, E Archer, N Bourgeois, J Cowley, Dr Emerson, L Feder, Xj Gu, O Jakobsson, Aj Ross, W Wang, R Walczak, Sm Hooker

Recovery time of a plasma-wakefield accelerator

Nature Springer Nature 603:7899 (2022) 58-62
R D’Arcy, James Chappell, J Beinortaite, S Diederichs, G Boyle, B Foster, Mj Garland, P Gonzalez Caminal, Ca Lindstrøm, G Loisch, S Schreiber, S Schröder, Rj Shalloo, M Thévenet, S Wesch, M Wing, J Osterhoff

Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch

Physical Review Accelerators and Beams American Physical Society 24:1 (2021) 011301
J Chappell, E Adli, R Agnello,, Philip Burrows, Rebecca Ramjiawan, E Senes, The AWAKE Collaboration
199026 198758
See all publications

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