Previous Topic   Next Topic   Contents   Commands
by Function
  Commands
Alphabetically

TRACK Pruning Commands

Use the Track Pruning Dialog to set these parameters.

Track pruning selects the path(s) in a history that lead from the source to desired cell(s) and/or surface(s). A history may consist of a number of particles, not all of which are of interest.

The tracks must be held in Sabrina's memory to enable pruning.

TRACK PRune Branches N

Select the first N branches that satisfy the pruning criteria or all such branches if N < 0.

TRACK PRune Cell C1 [C2 [C3 ...]]

Select histories that enter a cell in the list and discard all branches in the selected histories that are not in the path from the source to the cell. Paths that were discarded by a previous pruning operation and satisfy the current selection are not selected (use PRUNE RESET to enable selection).

TRACK PRune Header

If the MCNP PTRAC input specified cell and/or surface filters, those cell(s) and surface(s) are listed in the file header data. PRUNE HEADER searches for that data and prunes the tracks to those cells and/or surfaces. A warning is given and no pruning is done if the data does not exist.

TRACK PRune Reset

Discard all pruning selections and mark all track data as acceptable for display and writing (subject to filtering).

TRACK PRune Surface S1 [S2 [S3 ...]]

Select histories that cross a surface in the list and discard all branches in the selected histories that are not in the path from the source to the surface. Paths that were discarded by a previous pruning operation and satisfy the current selection are not selected (use PRUNE RESET to enable selection).

TRACK PRune Terminate {ON | OFf}

Terminate the path at the pruning cell or surface (ON) or continue the track to its termination (OFF).