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Forward Setup

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Once loaded a schedule file with the electrodes and quadrupoles, set the appropriate forward modeling parameters before running the forward modeling.

The forward modeling parameters are set by selecting the item FM set up (or Forward Solver set up for a Data Inversion session) from the Explorer menu.

A series of 2 tabbed  windows is presented. In the main setup we set the Omega.  The default 1.6 is usual. Then the tolerance (smaller numbers result in more computational effort). We also set the Maximum number of iterations. Larger numbers require more computational effort. Numbers between 200 and 400 are typical.

 

Forward One

 

In the boundary conditions tab we set the Boundary type for X, Y and negative Z directions.  The positive Z direction is always Neuman (no flow). Neuman may also be used for certain ungrounded lab experiments, and Direchlet may be used to model grounded electrodes. Finally the location of the virtual source may be explicitly identified.

Forward Two

 



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