A couple of recent questions may be answered at one of these sites.
Both have visuals explaining treatment, and locations where it is
available.
http://www.cksociety.org
"....bringing together diverse medical professionals affilated
with radiosurgery.....and to educate the general public with
patient information...."
http://www.cyberknifesupport.org
"...devoted group of patients, family, and friends who would like
to offer our support to your during your CyberKnife experience."
___ Blue Wave/QWK v2.12
CyberKnife 
Linear Mode
