Symplectic particle-in-cell model for space-charge beam dynamics simulation

Method of Template Potentials to Find Space Charge Forces for High-current Beam Dynamics Simulation*

A technique for finding space charge forces of a highcurrent beam propagating along a conducting chamber is presented. The technique is a generalization of the slice algorithm introduced previously [1,2]. The upgraded algorithm accommodates more general beam bunch configurations with different charge density distributions. From tabulated template potentials with appropriate interpolation and sc...

Particle-field decomposition and domain decomposition in parallel particle-in-cell beam dynamics simulation

Article history: Received 11 March 2010 Received in revised form 22 July 2010 Accepted 19 August 2010 Available online 26 August 2010

Dissipative Particle Dynamics simulation hydrated Nafion EW 1200 as fuel cell membrane in nanoscopic scale

The microphase separation of hydrated perfluorinated sulfonic acid membrane Nafion was investigated using Dissipative Particle Dynamics (DPD). The nafion as a polymer was modelled by connecting coarse grained beads which corresponds to the hydrophobic backbone of polytetrafluoroethylene and perfluorinated side chains terminated by hydrophilic end particles of sulfonic acid groups [1, 2]. Each f...

Simulation of Space-Charge Dominated Beam Dynamics in an Isochronous AVF Cyclotron

This paper describes a beam dynamics codèPICN' for simulation of high current proton beams in an isochronous azimuthally-varying-eld cyclotron. It is assumed that the median plane and vertical motions are decoupled, so that the internal space-charge forces can be calculated by a particle-in-cell method applied to the median plane charge distribution. We assume operation in a regime where vertic...

Theory and Technique of Beam Envelope Simulation Simulation of Bunched Particle Beams with Ellipsoidal Symmetry and Linear Space Charge Forces