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LAyered (LAminated) Wall Longitudinal (impedance)

• Purpose of the code :

  Computes longitudinal resistive wall impedance for multiple layers.

  
  

• Authors :

  Bruno Zotter

  Eberhard Keil

  
  

• Contact persons :

  Bruno Zotter (CERN (retired))

  Eberhard Keil (CERN (retired))

  
  

• Programming language :

  Mathematica

  
  

• Operating system :

  linux

  
  

• Homepage :

  LAWAL Home Page
  
  

• Simulation code :

  LAWAL Home Page
  
  

• Examples :

  LAWAL Home Page
  
  

• Documentation :

  LAWAL Home Page
  
  

• Special model features :

  
  

• Accelerators for which this code was/is used :

  SPS, LHC, VLHC

  
  

• Benchmarking against other codes :

  
  

• Benchmarking against accelerator experiments :

  
  

• Special programming features :

  
  

• Comments :

  A description of the original code LAWAL was published in the journal "Particle Accelerators" vol.1, pp.311-326 (1970), while LAWAT was already described in CERN report 69-15. Originally, Bruno Zotter wrote his own subroutines to calculate modified Bessel functions of complex argument. He rewrote both codes in the 1980ies using MATHEMATICA, which provided these functions. Subsequentially, Olav Meincke and Eberhard Keil used them to estimate the impedances of the SPS and the proposed VLHC (EPAC 1998), Eberhard modified the codes by combining recurrent parts into "packages".
  

  
  

• References :

  Reference page
  
  

• Categories :

  Impedances
  

Copyright CERN -- Cécile Lapoire, Romain Basset, Frank Zimmermann , Francesco Ruggiero