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WEPCH — Poster Session 28-Jun-06 16:00 - 18:00 Recent Improvements of PLACET The tracking code PLACET is used to simulate the beam transport in linear colliders from the damping ring to the interaction point and beyond. Recent improvements of A. Latina, H. Burkhardt, L. Neukermans, G. Rumolo, D. Schulte, R. Tomas (CERN) P. Eliasson (Uppsala University) J. Resta (IFIC) the code are presented. They include the possibility to simulate bunch compressors and to use parallel computer systems. Accelerator Physics Code Web Repository In the framework of the CARE HHH European Network, we have developed a web-based dynamic accelerator-physics code repository. We describe the design, structure and contents of this web repository, illustrate its usage, and discuss our future plans. F. Zimmermann, R. Basset, U. Dorda, M. Giovannozzi, Y. Papaphilippou, T. Pieloni, F. Ruggiero, G. Rumolo, F. Schmidt, E. Todesco (CERN) D.T. Abell (Tech-X) R. Bartolini (Diamond) E. Benedetto (Politecnico di Torino) Y. Cai, M.T.F. Pivi (SLAC) Y.H. Chin, K. Ohmi, K. Oide (KEK) S.M. Cousineau, V.V. Danilov, J.A. Holmes, A.P. Shishlo (ORNL) L. Farvacque (ESRF) A. Friedman (LLNL) M.A. Furman, D.P. Grote, J. Qiang, G.L. Sabbi, J.-L. Vay (LBNL) D. Kaltchev (TRIUMF) T.C. Katsouleas (USC) E.-S. Kim (PAL) J. Payet (CEA) T. Sen (Fermilab) B. Zotter (Honorary CERN Staff Member) MCCS - A Mathematica Notebook for Sector Separated Cyclotron Modeling We present a Mathematica Notebook MSSC (Model for Sector Separated Cyclotrons) for A. Adelmann (PSI) D.H. An (KIRAMS) the design and optimization of separate sector cyclotrons. From a minimum set of conceptual principles, such as isochronicity, and magnetic rigidity, MSSC gives the geometrical layout of the magnet sectors and RF gaps, vertical and radial tunes for the equilibrium and acceleration orbits, and the number of turns of the cyclotron for the extraction energy. Analytic description of rf and magnetic field distributions as well as measured field distributions can be used. MSSC is able to produce maps used in mad9p* in order to track particles with full 3D space charge. We show single particle dynamics as well as results from large multi-particle simulations, including 3D space charge, from our megawatt cyclotron facility. *A. Adelmann. "3D simulations of space charge effects in particle beams," Diss., Mathematische Wissenschaften ETH Zürich, Nr. 14545, 2002. Electron Linac Based e,X-radiation Facility In a number of technologies based on highcurrent electron accelerators bremsstrahlung is generated in the interaction of the beam with the irradiated object. Thus, in addition V.I. Nikiforov, A. Dovbnya, N.A. Dovbnya, V.L. Uvarov (NSC/ KIPT) to the electron radiation, the bremsstahlung may be used for carring out of different technolodgical programs (e,Xfacility). A method for the numerical analysis and optimization of the radiation characteristics of such installation is 313 WEPCH140 WEPCH141 WEPCH142 WEPCH143
WEPCH144 WEPCH145 WEPCH146 28-Jun-06 16:00 - 18:00 WEPCH — Poster Session proposed. The accelerator beam track, starting from the electron source and up to output devices is considered as a single multicomponent target consisting of the layers of different materials. The thickness of each layer is measured in the generalized units of the "stopping length". Using the method of simulation based on the PENELOPE/2001 system the characteristics of the mixed e,gamma-radiation field (energy yield of electrons, photons and their ratio) as function of the stopping length for actual or anticipated version of output equipment can be calculated. To illustrate the method, the parameters of the beam path of the NSC KIPT Linacs used as e,X-facilities was analyzed. CSR Studies of a Benchmark Bunch Compressor We study the influence of CSR on particle G. Bassi, J.A. Ellison, K.A. Heinemann (UNM) bunches traveling on arbitrary planar orbits between parallel conducting plates with a fixed "vertical" charge distribution. Our goal is a numerical solution of the 2 degree-of-freedom Vlasov-Maxwell equations. This provides simulations with lower numerical noise than the macroparticle method and allows the study of emittance degradation and microbunching. As reported*, we calculate the fields excited by the bunch in the lab frame using a new formula that leads to a simplification. The Vlasov equation is integrated in the beam frame interaction picture using the method of local characteristics. The transformation between traditional beam frame and lab frame coordinates is carefully treated. Here we report on our implementation of the algorithm in the context of a chicane bunch compressor**, where the strong correlation between phase space variables requires an adaptive grid. In particular, we present a complete analysis (moments + reduced densities) of the bunch evolution under the fields produced by the unperturbed bunch density. Finally, our progress on the fully self-consistent case is discussed. * Vlasov treatment of coherent synchrotron radiation from arbitrary planar orbits, Nucl. Instr. Meth. Phys. Res. A, in press.** ICFA Beam Dynamics Mini-Workshop on CSR, Berlin-Zeuthen, 2002. See http://www.desy.de/csr. Particle Tracking and Simulation on the .NET Framework Particle tracking and simulation studies are H. Nishimura (LBNL) becoming complex. In addition to the sophisticated graphics, interactive scripting is becoming popular. A compatibility with the control system requires network and database capabilities. It is not a trivial task to fulfill various requirements without sacrificing the runtime performance. We evaluate the use of .NET to solve this issue by converting a C++ code Goemon* that is an object-oriented version of Tracy developed at ALS. The portability to other platforms will be mentioned in terms of Mono. *H. Nishimura, PAC’01, Chicago, July 2001, p.3066. Intrabeam Scattering Studies for the ILC Damping Rings Using a New Matlab Code A new code to calculate the effects of in- I. Reichel, A. Wolski (LBNL) trabeam scattering (IBS)has been developed in Matlab based on the approximation suggested by K. Bane*. It interfaces with the Accelerator Toolbox** but can also read in lattice functions from other codes. The code has been benchmarked against results from other codes for the ATF*** that use this approximation or do the calculation in a different way. The new code has been used to calculate the emittance growth due to intrabeam 314
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Contents MOXPA — Linear Colliders
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Contents MOPCH056 Development of Hi
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Contents MOPCH140 Compensation of L
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Contents MOPLS020 Rad-hard Luminosi
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Contents MOPLS102 Beam Dynamic Stud
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TUOCFI — Accelerator Technology C
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Contents TUPCH074 Fast and Precise
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Contents TUPCH159 High Power Wavegu
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Contents TUPLS039 Proposal of a Nor
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Contents TUPLS127 Permanent Deforma
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Contents WEPCH020 Extending the Lin
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Contents WEPCH108 FFAG Computation
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Contents WEPCH192 Compact Electron
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Contents WEPLS078 Design Study of t
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Contents THPCH124 Visual Programmin
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Contents THPLS008 Commissioning of
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Contents THPLS099 Fast Kicker Syste
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MOXPA — Linear Colliders, Lepton
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Amro, A. THPLS043 An, D.H. TUPCH070
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Bates, D.A. WEPCH150 Battaglia, D.
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Yurkov, M.V. TUPCH081, THPLS133 Yus
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