Thanks Brian,

I had the same links in my journal plus this one http://www.mdcb.org/ which is more for certification. Your description is much as mine is about these folks. I more equated it to the wizard of Oz, behind the curtain doing miraculous things but ultimately still a human being. :-)

Personally, at my radiation facility there is a wall with all the personnel there with their titles/roles. From my recollection, which could be way off, there was one medical physicist, two-three dosimetrists, and five radiation oncologist plus supporting staff.

The RO went over my map on paper, not the computer program, showing the targeted areas, the varying intensities and contouring. I was assigned to the Varian Trilogy for IMRT and I asked if they used Eclipse for the mapping. He was not sure so it seems this facility has the dosimetrists running the mapping programs.

Thanks again for your informative reply,
don