ICAP 2006 - List of Keywords (optics)

A B C D E F G H I K L M O P Q R S T U V W

optics

Paper	Title	Other Keywords	Page
TUAPMP02	CHEF: A Framework for Accelerator Optics and Simulation	lattice, simulation, quadrupole, site	153
	J.-F. Ostiguy, L. Michelotti Fermilab, Batavia, Illinois
	Funding: This manuscript has been authored by Universities Research Association, Inc. under contract No. DE-AC02-76CH03000 with the U. S. Department of Energy. We describe CHEF, an application based on an extensive hierarchy of C++ class libraries. The objectives are (1) provide a convenient, effective application to perform standard beam optics calculations and (2) seamlessly support development of both linear and non-linear simulations, for applications ranging from a simple beamline to an integrated system involving multiple machines. Sample applications are discussed.
	Slides

TUAPMP03	Recent Progress on the MaryLie/IMPACT Beam Dynamics Code	space-charge, lattice, acceleration, simulation	157
	R. D. Ryne, E. W. Bethel, I. V. Pogorelov, J. Qiang, J. M. Shalf, C. Siegerist, M. Venturini LBNL, Berkeley, California D. T. Abell Tech-X, Boulder, Colorado A. Adelmann PSI, Villigen J. F. Amundson, P. Spentzouris Fermilab, Batavia, Illinois A. Dragt University of Maryland, College Park, Maryland C. Mottershead, N. Neri, P. L. Walstrom LANL, Los Alamos, New Mexico V. Samulyak BNL, Upton, Long Island, New York
	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"
	Slides

WEA1MP03	Computing Methods in FFAG Accelerators Design	factory, emittance, magnet-design, proton	238
	F. Meot CEA, Gif-sur-Yvette
	There has recently been a regain of interest of Fixed Field Alternating Gradient (FFAG) accelerators, the use of which use is now envisaged in various domains, from the fast acceleration of muon beams in the Neutrino Factory, to high average intensity medical beams, via proton and other electron driver applications. The capability of computer codes to model the FFAG type of accelerator and to perform precision tracking is a concern, in design stages, from both point of views of optics and of magnet design. The difficulties come mainly from, (i) the reference orbit moving with energy, in relation with the large momentum bite in these machines, (ii) the presence of possibly very strong sources of non-linearities, as fields and kinematical effects, (iii) the necessity of exploring large amplitude motion inherent to the capacity of FFAGs to accelerate very large emittances. These questions, the way they are addressed, and the methods/codes in use nowadays to perform FFAG studies will be reviewed. This will be illustrated with contemporary problems, drawn from the Neutrino Factory, medical application of FFAGs, etc.
	Slides