skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

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 » 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.« less

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, 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

Citation Formats

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.
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. doi:10.2172/505387.
Assmann, R., Adolphsen, C., Bane, K., Emma, P., Raubenheimer, T., Siemann, R., Thompson, K., and Zimmermann, F.. Tue . "LIAR -- A computer program for the modeling and simulation of high performance linacs". United States. doi:10.2172/505387. https://www.osti.gov/servlets/purl/505387.
@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},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 01 00:00:00 EST 1997},
month = {Tue Apr 01 00:00:00 EST 1997}
}

Technical Report:

Save / Share: