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THMPMP03 | Accelerator Modeling under SciDAC: Meeting the Challenges of Next-Generation Accelerator Design, Analysis, and Optimization. | 315 |
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Under the US DOE Scientific Discovery through Advanced Computing (SciDAC) initiative, a new generation of parallel simulation codes has been developed to meet the most demanding accelerator modeling problems for the DOE Office of Science (DOE/SC). Originally sponsored by DOE/SC's Office of High Energy Physics in collaboration with the Office of Advanced Scientific Computing Research, the new simulation capabilities have also been applied to other DOE projects, and to international projects as well. The new software has been applied to many projects, including the Tevatron, PEP-II, LHC, ILC, the Fermilab Booster, SNS, the JPARC project, the CERN SPL, many photoinjectors, and the FERMI@Elettra project. Codes have also been developed to model laser wakefield accelerators and plasma wakefield accelerators; these codes are being used both in support of advanced accelerator experiments, as well as to provide insight into the physics of ultra- high gradient accelerators. In this talk I will provide an overview of the computational capabilities that have been developed under our SciDAC project, and describe our plans for code development under the next phase of SciDAC. | ||
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TUAPMP03 | Recent Progress on the MaryLie/IMPACT Beam Dynamics Code | 157 |
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Funding: Supported in part by the US DOE, Office of Science, SciDAC program; Office of High Energy Physics; Office of Advanced Scientific Computing Research
MaryLie/IMPACT (ML/I) is a 3D parallel Particle-In-Cell code that combines the nonlinear optics capabilities of MaryLie 5.0 with the parallel particle-in-cell space-charge capability of IMPACT. In addition to combining the capabilities of these codes, ML/I has a number of powerful features, including a choice of Poisson solvers, a fifth-order rf cavity model, multiple reference particles for rf cavities, a library of soft-edge magnet models, representation of magnet systems in terms of coil stacks with possibly overlapping fields, and wakefield effects. The code allows for map production, map analysis, particle tracking, and 3D envelope tracking, all within a single, coherent user environment. ML/I has a front end that can read both MaryLie input and MAD lattice descriptions. The code can model beams with or without acceleration, and with or without space charge. Developed under a US DOE Scientific Discovery through Advanced Computing (SciDAC) project, ML/I is well suited to large-scale modeling, simulations having been performed with up to 100M macroparticles. ML/I uses the H5Part* library for parallel I/O. The code inherits the powerful fitting/optimizing capabilities of MaryLie, augmented for the new features of ML/I. The combination of soft-edge magnet models, high-order capability, and fitting/optimization, makes it possible to simultaneously remove third-order aberrations while minimizing fifth-order, in systems with overlapping, realistic magnetic fields. Several applications will be presented, including aberration correction in a magnetic lens for radiography, linac and beamline simulations of an e-cooling system for RHIC, design of a matching section across the transition of a superconducting linac, and space-charge tracking in the damping rings of the International Linear Collider.
*ICAP 2006 paper ID 1222, A. Adelmann et al., "H5Part: A Portable High Performance Parallel Data Interface for Electromagnetics Simulations" |
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