Work

CPU efficient numerical code for charged particle transport through insulating straight capillaries

Year: 2024

Type: preprint

Abstract: AA numerical code, labeled InCa4D, used for simulating CPU-efficiently the guiding of charged beam particles through insulating straight nano or macro capillaries, is presented in detail. The paper may be regarded as a walk through the numerical code, where we discuss how we compute the charge deposition and charge dynamics at the interfaces of a straight capillary and how we compute the electric field with imposed boundary conditions. The latter add surface polarization charges at the dielectric interfaces and free charges at conducting interfaces. Absorbing boundary conditions allow for a leakage current. As a result, the electric field in InCa4D yields accurate relaxation rates and decay rates for both cases, namely where the outer surface of the straight capillary is covered by a grounded conducting paint or not. Eventually, we show how we sample the initial conditions of the inserted beam particles and how we evaluate CPU-efficiently the particles' trajectory, allowing to compute typically $10^6$ trajectories in about two hours on a modern CPU.

Source: HAL (Le Centre pour la Communication Scientifique Directe)

DOI: 10.48550/arxiv.2401.13521

Author: Giglio, Eric

Institutions: Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre de Recherche sur les Ions, les Matériaux et la Photonique, Université de Caen Normandie

Language: English

Topic: Particle accelerators and beam dynamics

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Awards: Platform for the study of ion implantation, Controlled and Analyzed at the nanoscale, G6702880738

OpenAlex ID: W4391244855

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