Quantitatively consistent computation of coherent and incoherent radiation in particle-in-cell codes - a general form factor formalism for macro-particles
Quantitatively consistent computation of coherent and incoherent radiation in particle-in-cell codes - a general form factor formalism for macro-particles
Pausch, R.; Debus, A.; Huebl, A.; Schramm, U.; Steiniger, K.; Widera, R.; Bussmann, M.
Quantitative predictions from synthetic radiation diagnostics often have to consider all accelerated particles.
For particle-in-cell (PIC) codes, this not only means including all macro-particles but also taking into account the discrete electron distribution associated with them.
This paper presents a general form factor formalism that allows to determine the radiation from this discrete electron distribution in order to compute the coherent and incoherent radiation self-consistently.
Furthermore, we discuss a memory-efficient implementation that allows PIC simulations with billions of macro-particles.
The impact on the radiation spectra is demonstrated on a large scale LWFA simulation.
Keywords: particle-in-cell simulations; laser plasma acceleration; far field radiation; plasma physics; radiation diagnostics
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Contribution to proceedings
3rd European Advanced Accelerator Concepts Workshop, 24.-29.09.2017, La Biodola, Isola d'Elba, Italien: NIM-A -
Nuclear Instruments and Methods in Physics Research A 909(2018), 419-422
Online First (2018) DOI: 10.1016/j.nima.2018.02.020
Cited 5 times in Scopus
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