grt3d

Three-dimensional Gaussian beam ray-tracing program

About the program

The three-dimensional Gaussian beam ray-tracing program, grt3d, is written in Research Systems Incorporated's Interactive Data Language (IDL) and is freely available for use under the terms of the GNU General Public License. Running grt3d requires IDL or the free IDL Virtual Machine to be installed. These can be obtained from the Research Systems Incorporated website. Below are links to a paper and some notes on the program and its coordinate system. There is also a discussion of the program in Chapter Four of George Warr’s PhD thesis. Please contact me if you would like further information on the program or need any help with it. I’m also keen to hear what uses you’ve put it to.

George B. Warr and John Howard, A three-dimensional Gaussian-beam ray-tracing program for designing interferometer/polarimeter plasma diagnostics, Rev. Sci. Instrum. 72 (2001) 2305-2309.

Notes on running the program

Notes on the grt3d coordinate system (pdf)

Download

 Run time version (Includes executable IDL sav file that can be run with the IDL Virtual Machine): grt3d-run-time.zip (2.8 MB)

 Source code: grt3d.zip (243 KB)

 Sample file h1nf_interferometer.zip (360 KB)

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Last Revised: 20 June 2005