##### First Annual OSIRIS Users and Developers Workshop (2017)

**OSIRIS Workshop Agenda** PDF

Introduction to OSIRIS 4.0

- Ricardo Fonseca, “Introduction to OSIRIS 4.0 for developers (and users).” PDF
- Anton Helm, “Implementing a ponderomotive guiding center solver: a case study.” PDF
- Ricardo Fonseca, “New hardware support in OSIRIS 4.0.” PDF
- Josh May, “OSIRIS Collision Package Overview.” PDF

Accessing OSIRIS and using OSIRIS through GitHub

- Anton Helm presenter, PDF

New features in OSIRIS 4.0

- Anton Helm, “Three dimensional modeling using ponderomotive guiding center solver.” PDF
- Asher Davidson and Thamine Dalichaouch, “The Implementation and Usage of the Quasi-3D Algorithm in OSIRIS 4.0.” PDF
- Thomas Grismayer, “Numerics for ultra-intense fields.” PDF
- Xinlu Xu, “Customized FD and Hybrid FFT/FD Algorithms for eliminating the Numerical Cherenkov Instability (NCI).” Keynote
- Han Wen, “New Antennas for modeling the nonlinear optics of plasmas & Non-uniform Particle Weighting.” Powerpoint
- Thamine Dalichaouch, “Azimuthal Fourier Mode Diagnostic for Comparisons of Full-3D and Quasi-3D Simulations.” Keynote
- Ricardo Fonseca, “(Beam) field Initialization in OSIRIS 4.0.” PDF

Short talks on usage of OSIRIS 3.0 and 4.0

- Xinlu Xu, “Modeling laser-driven density downramp injection.” Keynote
- Asher Davidson, “Modeling LWFA with the Quasi-3D Version of OSIRIS.” PDF
- Weiming An, “Modeling Plasma Wake Field Accelerator.” PDF
- Jens Osterhoff, “OSIRIS Usage At DESY: Full start-to-end PWFA simulations for FLASHFORWARD.” PDF
- Fabrízio Del Gaudio, “Particle In Cell Compton Scattering.”
- Paulo Alves, “Coupling of Numerical PIC and Monte Carlo.”
- Scott Feister, “Numerical Challenges in Efficient Modeling of Colliding Flows.” Powerpoint
- Frank Tsung, “Modeling Nonlinear Optics Of Plasmas (Relevant To IFE).” PDF
- Frederico Fiuza, “Modeling collisionless shocks and overdense laser-plasma interactions.”
- Xinlu Xu, “Modeling Ionization Injection in OSIRIS.” Keynote

- Anton Helm presenter, PDF

Current development and discussion of ideas for future plans

- Ricardo Fonseca, “Dynamic load balancing in OSIRIS.” PDF
- Qiyang Hu and Frank Tsung, “Overview of PICKSC Science Gateway.” PDF
- Michael Touati, “Integrating UPIC Algorithms into OSIRIS.” PDF
- Kyle Miller, “Boris correction: exact and approximate.” PDF
- Francois Courvoisier, “Research at FEMTO-ST Institute.”
- Fábio Cruz, “Modified spherical coordinates system for PIC simulations of pulsar magnetospheres.”
- Giannandrea Inchingolo, “Multi-dimensional shearing modules in OSIRIS 4.0.” PDF
- Kevin Schoeffler, “QED energy and relativistic temperature diagnostics.”

##### Conference Proceedings

A. Davidson, A. Tableman, Peicheng Yu, Weiming An, Frank Tsung, Wei Lu, Ricardo A. Fonseca, and Warren B. Mori, “An Examination of the Scaling Laws for LWFA in the Self-Guided Nonlinear Blowout Regime.” AIP Conference Proceedings 1812, 040014 (2017); doi: 10.1063/1.4975861

P. Yu, et al., in Proc, International Particle Accelerator Conference, Richmond, Virginia, 2015.

P. Yu, et al., in Proc. 16th Advanced Accelerator Concepts Workshop, San Jose, California, 2014.

P. Muggli, O. Reimann, N. Lopes, L. Silva, J. Vieira, E. Adli, S. Gessner, M. Hogan, S. Li, M. Litos, C. Joshi, K. Marsh, W. Mori, N. Vafaei-Najafabadi, Y. Fang, “Electron and positron bunch self-modulation experiments at SLAC-FACET,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link

A. A. Sahai, T. C. Katsouleas, F. S. Tsung, W. B. Mori, “Long term evolution of plasma wakefields,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

C. Clayton, W. An, C. Joshi, K. Marsh, W. Mori, N. Vafaei- Najafabadi, P. Muggli, E. Adli, C. I. Clarke, S. Corde, J.-P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. J. Gessner, M. Hogan, S. Z. Li, M. D. Litos, D. Walz, Z. Wu, W. Lu, “A betatron-analysis technique for identifying narrowband trapped charge within a broadband energy tail in PWFA experiments at FACET,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

A. W. Davidson, W. Lu, M. Zheng, C. Joshi, L.O. Silva, J. Martins, R. A. Fonseca, W. B. Mori, “Self and ionization-injection in LFWA for near-term lasers,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

N. Vafaei-Najafabadi, W. An, C. E. Clayton, C. Joshi, W. Lu, K. A. Marsh, W. B. Mori, E. Adli, C. I. Clarke, S. Corde, J.-P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. J. Gessner, M. J. Hogan, S. Z. Li, M. D. Litos, D. Walz, Z. Wu, P. Muggli, “Suppression of the transformer ratio due to distributed injection of electrons in a plasma wakefield accelerator,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

P. Yu, V. K. Decyk, W. An, F. S. Tsung, W. B. Mori, X. Xu, W. Lu, J. Vieira, R. A. Fonseca, L. O. Silva, “Simulation of laser wakefield acceleration in the Lorentz boosted frame with UPIC-EMMA,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

Y. Fang, P. Muggli, W. Mori, “Possibility of confirming SMI through energy spectrum with the 1 nC ATF electron bunch,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

M. D. Litos, E. Adli, C. I. Clarke, S. Corde, J. P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. Gessner, M. J. Hogan, S. Li, D. Walz, G. White, Z. Wu, V. Yakimenko, W. An, C. E. Clayton, C. Joshi, W. Lu, K. A. Marsh, W. B. Mori, N. Vafaei-Najafabadi, P. Muggli, “Latest plasma wakefield acceleration results from the FACET project,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

K. A. Marsh, W. An, C. E. Clayton, C. Joshi, W. B. Mori, N. Vafaei-Najafabadi, P. Muggli, C. I. Clarke, S. Corde, J-P. Delahaye, R. J. England, A. S. Fisher, J. Frederico, S. J. Gessner, M. J. Hogan, S. Z. Li, M. D. Litos, D. Walz, Z. Wu, E. Adli, W. Lu, “X-ray radiation and electron injection from beam envelope oscillations in plasma wakefield accelerator experiments at FACET,” Proceedings of the North American Particle Accelerator Conference, Pasadena, CA (2013). link.

##### Select Presentations

R. A. Fonseca, “Challenges in computer simulations to the exascale.” 17th Advanced Accelerator Concepts Workshop (2016). PDF

X. Xu, F. Li, W. Lu, C. Joshi, W. B. Mori, “Physics of high quality electrons generation from density downramp injection in the 3D blowout regime.” 17th Advanced Accelerator Concepts Workshop (2016). PowerPoint

X. Xu, C.-H. Pai, J. Vieira, W. Lu, C. Joshi, W. B. Mori, “Nanoscale Electron Bunching and Spiraling in Laser-Triggered Ionization Injection in Plasma Accelerator.” 17th Advanced Accelerator Concepts Workshop (2016). PDF

X. Xu, P. Yu, F. Li, T. Dalichaouch, W. B. Mori, “Comparison of the injection between boosted frame and lab frame simulations.” 17th Advanced Accelerator Concepts Workshop (2016). PDF

F. Li, P. Yu, X. Xu, F. Fiuza, V. K. Decyk, T. Dalichaouch, A. Davidson, A. Tableman, W. An, F. S. Tsung, R. A. Fonseca, W. Lu, W. B. Mori, “Controlling the Numerical Cerenkov Instability in PIC simulations using a customized FDTD Maxwell solver and a local FFT based current correction.” 17th Advanced Accelerator Concepts Workshop (2016). PDF

L. D. Amorim, W. An, W. B. Mori, J. Vieira, “Transverse evolution of e+ beams accelerating in hollow plasma channel non-linear wakefields.” 17th Advanced Accelerator Concepts Workshop (2016). PDF

V. K. Decyk, “A portable approach for PIC on emerging architectures.” APS April Meeting, Bull. Am. Phys. Soc. vol. 61, no. 6, 82 (2016). PDF

W. An, “Simulations of Plasma Wakefield Acceleration at FACET and Beyond.” 12th International Computational Accelerator Physics Conference (2015). PDF

W. B. Mori, V. K. Decyk, F. S.Tsung, R. E. Caflisch, R. A. Fonseca, “The UCLA Particle-in-Cell and Kinetic Simulation Software Center (PICKSC)” (2015). PDF

W. An, et al., “Plasma Ion Motion In The Nonlinear Blowout Regime,” in Proc. 16th Advanced Accelerator Concepts Workshop, San Jose, California, 2014.

A. Davidson, “Exploration of LWFA Parameter Regimes Using Truncated Azimuthal Geometry in the OSIRIS Simulation Framework.” Talk, JO7.11, 2014 American Physical Society Division of Plasma Physics Meeting.

A. Davidson, “Implementation of a hybrid particle code with a PIC description in r-z and a gridless description in ø into OSIRIS.” 2014 Advanced Accelerator Concepts Workshop.

B. J. Winjum, F. S. Tsung, W. B. Mori, “PIC Simulations of Multi-Speckle Stimulated Raman Scattering in Inhomogenous Plasmas.” Talk, 2014 Anomalous Absorption Conference.

B. J. Winjum, J. J. Tu, S. S. Su, V. Decyk, W. B. Mori, “Verification and Convergence Properties of a Particle-In-Cell Code.” 2014 Anomalous Absorption Conference. PDF

B. J. Winjum, J. J. Tu, S. S. Su, V. Decyk, W. B. Mori, “Verification and convergence properties of a particle-in-cell code.” Invited Talk, Computational Methods in High Energy Density Plasmas, Reunion Conference I, hosted by UCLA Institute of Pure and Applied Mathematics at Lake Arrowhead, CA, 2013.

B. J. Winjum, V. K. Decyk, W. B. Mori, J. W. Banks, R. L. Berger, T. Chapman, S. Brunner, “Kinetic simulations of externally driven and instability driven nonlinear electron plasma waves relevant to stimulated Raman scattering.” NP8.117, 2013 American Physical Society Division of Plasma Physics Meeting.

B. J. Winjum, R. L. Berger, T. Chapman, J. W. Banks, S. Brunner, V. K. Decyk, W. B. Mori, “Kinetic Simulations of the Self-Focusing and Dissipation of Finite-Width Electron Plasma Waves.” 2013 Anomalous Absorption Conference.