TxPhysics Library

Advanced Physics For Accelerator Simulations

The TxPhysics library from Tech-X Corporation is a cross-platform library of computational modules for modeling how charged particles interact with their environment. The TxPhysics library includes models for impact ionization of neutral gases by electrons and ions, field-induced tunneling ionization of atoms, ion range and stopping power in solids, ion-induced electron yield from solids, and secondary electron yields.

These effects are important in low-pressure discharges for ion sources, waveguide breakdown for microwave physics, and plasma creation during laser-plasma interaction. Tech-X researchers and their collaborators have published discussions on many of the algorithms in the TxPhysics library, including:

• Stoltz, P. H.; Veitzer, S. A.; Cohen, R. H.; Molvik, A. W.; Vay, J. L. "Energy Loss, Range, and Electron Yield Comparisons of the CRANGE Ion-Material Interaction Code". Nuclear Instruments and Methods in Physics Research Section A, v. 544 (2005), p. 502-505.
• David L. Bruhwiler, Dimitre A. Dimitrov, John R. Cary, Eric Esarey, Wim Leemans and Rodolfo E. Giacone, "Particle-in-cell simulations of tunneling ionization effects in plasma-based accelerators," Phys. Plasmas 10 (2003), p. 2022.
• P.H. Stoltz, et al, "Numerical Simulation of Secondary Electron Emission in the High Current Experiment", Phys. Rev. ST Accel. Beams 6, 054701, 2003.

An OOPIC Pro simulation showing argon ion density in a closed-drift ion source. Two important mechanisms for generating and maintaining this discharge are impact ionization and ion-induced electron yield. Models for these two mechanisms and more are included in the TxPhysics library.

TxPhysics Library is certified to work with Mission Research Corporation's LSP plasma simulation package as well as OOPIC Pro and VORPAL from Tech-X Corporation.

Support and additional information for the TxPhysics Libraries can be found by joining the TxPhysics Users List