LIAR -- A computer program for the modeling and simulation of high performance linacs

Assmann, R; Adolphsen, C; Bane, K; Emma, P; Raubenheimer, T; Siemann, R; Thompson, K; Zimmermann, F

doi:10.2172/505387

Title: LIAR -- A computer program for the modeling and simulation of high performance linacs

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Abstract

The computer program LIAR (LInear Accelerator Research Code) is a numerical modeling and simulation tool for high performance linacs. Amongst others, it addresses the needs of state-of-the-art linear colliders where low emittance, high-intensity beams must be accelerated to energies in the 0.05-1 TeV range. LIAR is designed to be used for a variety of different projects. LIAR allows the study of single- and multi-particle beam dynamics in linear accelerators. It calculates emittance dilutions due to wakefield deflections, linear and non-linear dispersion and chromatic effects in the presence of multiple accelerator imperfections. Both single-bunch and multi-bunch beams can be simulated. Several basic and advanced optimization schemes are implemented. Present limitations arise from the incomplete treatment of bending magnets and sextupoles. A major objective of the LIAR project is to provide an open programming platform for the accelerator physics community. Due to its design, LIAR allows straight-forward access to its internal FORTRAN data structures. The program can easily be extended and its interactive command language ensures maximum ease of use. Presently, versions of LIAR are compiled for UNIX and MS Windows operating systems. An interface for the graphical visualization of results is provided. Scientific graphs can be saved in the PS andmore »« less

Authors:: Assmann, R; Adolphsen, C; Bane, K; Emma, P; Raubenheimer, T; Siemann, R; Thompson, K; Zimmermann, F

Publication Date:: 1997-04-01

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE Office of Energy Research, Washington, DC (United States)

OSTI Identifier:: 505387

Report Number(s):: SLAC/AP-103
ON: DE97007851; TRN: 97:013380

DOE Contract Number:: AC03-76SF00515

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: Apr 1997

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; LINEAR ACCELERATORS; L CODES; COMPUTER-AIDED DESIGN; BEAM DYNAMICS; COMPUTERIZED SIMULATION; BEAM OPTICS; COMPUTER GRAPHICS; MANUALS; COMPUTER PROGRAM DOCUMENTATION

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                    Assmann, R, Adolphsen, C, Bane, K, Emma, P, Raubenheimer, T, Siemann, R, Thompson, K, and Zimmermann, F. LIAR -- A computer program for the modeling and simulation of high performance linacs.  United States: N. p., 1997. 
        Web.  doi:10.2172/505387.

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                    Assmann, R, Adolphsen, C, Bane, K, Emma, P, Raubenheimer, T, Siemann, R, Thompson, K, & Zimmermann, F. LIAR -- A computer program for the modeling and simulation of high performance linacs.  United States.  https://doi.org/10.2172/505387

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                    Assmann, R, Adolphsen, C, Bane, K, Emma, P, Raubenheimer, T, Siemann, R, Thompson, K, and Zimmermann, F. 1997.  
        "LIAR -- A computer program for the modeling and simulation of high performance linacs".  United States.  https://doi.org/10.2172/505387.  https://www.osti.gov/servlets/purl/505387.

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@article{osti_505387,

  title        = {LIAR -- A computer program for the modeling and simulation of high performance linacs},

  author       = {Assmann, R and Adolphsen, C and Bane, K and Emma, P and Raubenheimer, T and Siemann, R and Thompson, K and Zimmermann, F},

  abstractNote = {The computer program LIAR (LInear Accelerator Research Code) is a numerical modeling and simulation tool for high performance linacs. Amongst others, it addresses the needs of state-of-the-art linear colliders where low emittance, high-intensity beams must be accelerated to energies in the 0.05-1 TeV range. LIAR is designed to be used for a variety of different projects. LIAR allows the study of single- and multi-particle beam dynamics in linear accelerators. It calculates emittance dilutions due to wakefield deflections, linear and non-linear dispersion and chromatic effects in the presence of multiple accelerator imperfections. Both single-bunch and multi-bunch beams can be simulated. Several basic and advanced optimization schemes are implemented. Present limitations arise from the incomplete treatment of bending magnets and sextupoles. A major objective of the LIAR project is to provide an open programming platform for the accelerator physics community. Due to its design, LIAR allows straight-forward access to its internal FORTRAN data structures. The program can easily be extended and its interactive command language ensures maximum ease of use. Presently, versions of LIAR are compiled for UNIX and MS Windows operating systems. An interface for the graphical visualization of results is provided. Scientific graphs can be saved in the PS and EPS file formats. In addition a Mathematica interface has been developed. LIAR now contains more than 40,000 lines of source code in more than 130 subroutines. This report describes the theoretical basis of the program, provides a reference for existing features and explains how to add further commands. The LIAR home page and the ONLINE version of this manual can be accessed under: http://www.slac.stanford.edu/grp/arb/rwa/liar.htm.},

  doi          = {10.2172/505387},

  url          = {https://www.osti.gov/biblio/505387},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {4}

}

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