Speaker
Description
We present LePIC+, a new generation Particle-in-Cell code developed from the legacy LePIC code and designed to improve maintainability, scalability, and computational efficiency while preserving the physical fidelity of the original implementation. LePIC+ introduces a fully modernized architecture based on improved memory management and a modular code design. Particular attention was given to the optimization of particle storage and access patterns, resulting in a significant acceleration of the particle mover, one of the most computationally demanding components of PIC simulations. Preliminary benchmarks indicate that LePIC+ is approximately twice as fast as the original LePIC code while producing equivalent physical results. As an initial validation case, LePIC+ has been applied to the modeling of a caesium-free negative ion source (H-/D-) under development at D-Pace. The source employs a 13.56 MHz external RF flat antenna to sustain the plasma. Simulations were performed to obtain plasma density and temperature profiles within the source volume. The numerical results are compared with experimental measurements obtained using an RF-compensated Langmuir probe in the bulk plasma region.
| Email address | jdeguire@uvic.ca |
|---|---|
| Funding Agency | Mitacs |
| Classification/Track | Particle-in-Cell simulations |
| Visitor's Visa | no |
| Classification | Numerical simulations of sources, beams, space-charge, ion-optics |