TRiP98 makedoseramp command



makedoseramp outdose / target() 
                       level(0.8,0.2) parabolic
                       gantry()
                       couch()    
                       debug
                       corners    

Purpose

Generates an inhomogeneous dose cube (ramp along the field direction)

Parameters

outdose
Output dose cube.
target()
gantry()
couch()
Specify field direction, as for the field command.
level([posprox,]doseprox,[posdist,]dosedist)
List of numbers (0<dose<1) specifying the proximal and distal dose levels in the target volume.
Two forms are possible:
parabolic
Interpolate a parabola (rather than a straight line) between the level positions. This is particularly useful for adapting to absorbed dose shapes originating from biological optimization.
corners
Specifies that all eight corners plus the centre of a voxel are checked whether they are inside the target volume or not. By default only the centre is checked. Specifying corners results in dose prescriptions more consistent with the homogeneous dose prescriptions.
debug
Debug switch. Lots of output !

Remark

A CT and a target volume must exist.

Examples

makedoseramp ramp.dos / couch(-180) gantry(0) level(0.8,0.2)
Creates a normalized dose distribution which drops from 80% in the proximal voxel of the target volume (in beams eye-view) along the direction specified by couch and gantry angle to 20% in the distal voxel of the target volume. The target coordinates are taken from the target volume definition.
makedoseramp ramp.dos / couch(-180) gantry(0) level(0.1,0.8,0.9,0.2)
Creates a normalized dose distribution which drops from 80% at 10% relative depth from the proximal voxel of the target volume (in beams eye-view) along the direction specified by couch and gantry angle to 20% at 90% relative depth from the proximal voxel of the target volume. That is, the depth is measured from 0 to 100% in beams eye-view from proximal to distal target voxel. Voxels beyond the edges receive the 0.8 and 0.2 levels, respectively. The target coordinates are taken from the target volume definition.
Last updated: M.Kraemer@gsi.de
$Id: trip98cmdmakedoseramp.html,v 1.8 2011/03/08 19:02:42 kraemer Exp $