Verification and benchmarking relativistic electron beam transport through a background gas

被引：0

作者：

Medina, Brandon M. ^{[1
]}

Grua, Pierre ^{[2
]}

Cartwright, Keith L. ^{[3
]}

Hebert, David ^{[2
]}

Szalek, Nicolas ^{[2
]}

Caizergues, Clement ^{[2
]}

Owens, Israel ^{[4
]}

Rhoades, Elaine L. ^{[4
]}

Gardelle, Jacques ^{[2
]}

Moore, Christopher H. ^{[3
]}

机构：

[1] Los Alamos Natl Lab, Plasma Theory & Applicat, Los Alamos, NM 87545 USA

[2] CEA, CESTA, 15 Ave Sablieres,CS 60001, F-33116 Le Barp, France

[3] Sandia Natl Labs, Plasma Theory & Simulat, Albuquerque, NM 87123 USA

[4] Sandia Natl Labs, Radiat Effects Experimentat, Albuquerque, NM 87123 USA

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2023年 / 288卷

关键词：

Verification and validation; Relativistic electron beam; Particle-in-cell; CHARGE CONSERVATION;

D O I：

10.1016/j.cpc.2023.108721

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

It is necessary to establish confidence in high-consequence codes containing an extensive suite of physics algorithms in the regimes of interest. Verification problems allow code developers to assess numerical accuracy and increase confidence that specific sets of model physics were implemented correctly in the code. The two main verification techniques are code verification and solution verification. In this work, we present verification problems that can be used in other codes to increase confidence in simulations of relativistic beam transport. Specifically, we use the general plasma code EMPIRE to model and compare with the analytical solution to the evolution of the outer radial envelope of a relativistic charged particle beam. We also outline a benchmark test of a relativistic beam propagating through a vacuum and pressurized gas cell, and present the results between EMPIRE and the hybrid code GAZEL. Further, we discuss the subtle errors that were caught with these problems and detail lessons learned. (c) 2023 Elsevier B.V. All rights reserved.

引用

页数：15

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