# Phase Space file projected onto phantom

**URL:** <https://discourse.slicer.org/t/phase-space-file-projected-onto-phantom/14608>\
**Category:** Support\
**Tags:** slicerrt\
**Created:** [November 15, 2020, 3:36am UTC](https://discourse.slicer.org/t/phase-space-file-projected-onto-phantom/14608 "2020-11-15T03:36:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Space](https://avatars.discourse-cdn.com/v4/letter/s/8797f3/32.png) [@Space](https://discourse.slicer.org/u/Space)\
**Post date:** [November 15, 2020, 3:36am UTC](https://discourse.slicer.org/t/phase-space-file-projected-onto-phantom/14608/1 "2020-11-15T03:36:25Z")

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Hi, I have been trying to do an orthovoltage dose calculation using my own phase space file(s) and DICOM data sets in slicerRT. I have encountered alot of issues and errors. I am now wondering what is the simplest method for doing this?

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**Author:** ![Space](https://avatars.discourse-cdn.com/v4/letter/s/8797f3/32.png) [@Space](https://discourse.slicer.org/u/Space)\
**Post date:** [November 15, 2020, 3:36am UTC](https://discourse.slicer.org/t/phase-space-file-projected-onto-phantom/14608/2 "2020-11-15T03:36:27Z")

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Hi, what is the best way to project a phase space file onto a set of DICOM files to calculate dose. When I try this it results in many issues. I have folllowed many threads on problem solving, now I’d like to find out the most appropriate way to attempt this task.

Any help greatly appreciated, thanks