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<body stylesrc="http://www.afs.enea.it/gianness/perseo/toc.htm"> <p style="margin-left: 0; margin-bottom: -6"> <font face="Bookman Old Style" size="7"><img border="0" src="images/Perseo.jpg" width="77" height="60"> <font color="#800000">Perseo</font></font>     <font size="6" color="#800000">FEL-CAD Library</font></p> <p style="margin-left: 0; margin-bottom: -2"><img border="0" src="images/head.h1.gif" width="545" height="12"></p> <p style="margin-left: 0; margin-bottom: -2"><font FACE="Bookman Old Style" size="3" color="#800000">Suite of MathCad functions for the numerical solution of problems related to Free Electron Laser Physics</font></p> <p style="margin-left: 0; margin-bottom: -2"> </p> <p style="text-indent: 12; margin-top: 3; margin-bottom: 1"><font FACE="Bookman Old Style" SIZE="2" color="#800000">Dear User,</font></p> <p style="text-indent: 12; margin-top: 3; margin-bottom: 1">   <font color="#800000">I spent most of my programming time in setting up interfaces to pass parameters to FORTRAN or C programs. This part of the simulation work, even though necessary, is the least interesting and the time taken is mainly subtracted to modelling physics.</font></p> <p style="text-indent: 12; margin-top: 3; margin-bottom: 1"><font FACE="Bookman Old Style" SIZE="2" color="#800000">    Mathcad is a versatile tool for implementing math expression, plotting data and setting up simulations. Its prerogative is the simplicity and friendness of the interface. </font></p> <p style="text-indent: 12; margin-top: 3; margin-bottom: 1"><font FACE="Bookman Old Style" SIZE="2" color="#800000">    Today's PC are quite fast and a one dimensional FEL simulation can be run interactively. </font></p> <p style="text-indent: 12; margin-top: 3; margin-bottom: 1"><font FACE="Bookman Old Style" SIZE="2" color="#800000">    This suggested to develope a set of functions devoted to FEL physics in Mathcad. </font></p> <p style="text-indent: 12; margin-top: 3; margin-bottom: 1"><font FACE="Bookman Old Style" SIZE="2" color="#800000">    The result is a flexible tool that can be simply programmed to set up FEL simulations in a wide variety of configurations.</font></p> <p>   <font face="Bookman Old Style" size="2" color="#800000">                                                                            Luca Giannessi</font></p> <p><font color="#800000" face="Bookman Old Style" size="4"><b></b>Overview</font></p> <font FACE="Bookman Old Style" SIZE="3"> <p>   <font color="#800000"> Perseo FEL-cad library</font></font><font color="#800000"><font FACE="Bookman Old Style" SIZE="2"> allows the 1D simulation of SASE FEL configurations (</font><b><u><a href="pdf/SASE_FEL_simulation.pdf"><font SIZE="2">See example</font></a></u></b></font><font FACE="Bookman Old Style" SIZE="2"><font color="#800000">), oscillator configuations (a specific example will be ready soon) and exhotic configurations like MOPA, it includes higher order harmonics and startup from shot-noise. Time dependent simulations can be programmed within Mathcad, and future extensions will extend the simulation to the transverse space.</font></p> <p><font color="#800000">The basic stone consists in the integration the pendulum equation coupled to the fieds equations. This integration is performed by C routines embedded in .dll files that must be copied in the "Mathcad installation directory/userefi". </font></font><font color="#800000"><font FACE="Bookman Old Style" SIZE="2">Additional functions obtained by mathcad programming are available including the file </font><b><u><font SIZE="2"><a href="pdf/FEL_CAD_library.pdf">FEL_cad_library.mcd</a></font></u></b></font><font color="#800000">. in any user's document.</font></p> <p> </p> <p> </p> <p><a href="download.htm"><font color="#800000">Download&</font></a> <a href="download.htm"><font color="#800000">Installation</font></a></p> <p><font color="#800000"><a href="functionslist.htm">List of available functions</a></font></p> <p><font color="#800000"><a href="examples.htm">Examples</a></font></p> <p><font color="#800000"><a href="users.htm">User's documents</a></font></p> <p><font color="#800000"><a href="problems.htm">Known Problems</a></font></p> <p><font color="#800000"><a href="comments.htm">Comments</a></font></p> <p> </p> <p> </p> </body>