TriForce algorithms for enabling long-time-scale FRC plasma simulations

TriForce is a computational environment using a hybrid fluid-kinetic model to execute higher-fidelity simulations in shorter time frames. At its core are a particle-in-cell model and a meshless hydrodynamic model that can be coupled to perform modeling across multiple spatiotemporal scales and approximation regimes. The key to performing these calculations over large numbers of time steps is the management of accumulating numerical error. Presented here are details regarding the implementation and verification of multiple new packages in the TriForce Library for Integrated Numerical Kinetics, including those for active particle statistics management, charge conservation, and 2^nd-order particle-force interpolation. Additionally, an update is given on fully-integrated electro-magnetic PIC simulations of PFRC, a field reversed configuration that demonstrates plasma heating by odd-parity rotating magnetic fields.