Transformable charged particle beam path cancer therapy apparatus and method of use thereof

A method for determining a treatment beam path of positively charged particles for treatment of a tumor of a patient in a treatment room, comprising the steps of:

• delivering the positively charged particles from an accelerator, along a first beam transport path, through an output nozzle, and along a second treatment path to the tumor of the patient relative to a calibrated reference beam path from said output nozzle toward a patient position;
• and
• prior to said step of delivering, a main controller verifying an unobstructed linear path of the second treatment path using a said set of fiducial indicators, a first fiducial indicator of said set of fiducial indicators positioned on a first element physically affixed and co-movable with said output nozzle, a second fiducial indicator affixed to a moveable object in the treatment room, and a third fiducial indicator affixed to an imaging system rotatable about a first axis passing through the patient, said output nozzle rotatable about a second axis perpendicular to said first axis.