An optional accessory designed for rigid head immobilization. The device consists of a frame that is attached to the patient table and fixation pins that are affixed to the patient's head to minimize voluntary and involuntary patient movement and maintain the target position throughout the treatment session.
A stationary assembly of computer-based devices designed to produce high-energy electrons to yield high-energy x-rays used to perform stereotactic radiosurgery (SRS) to treat brain, neck, or spinal cord tumours, and/or to perform stereotactic body radiation therapy (SBRT). It consists of a linear accelerator with a moveable/rotating gantry, collimators, patient table, and an operator's console. A metal head frame attached to the patient's skull may be used for precise radiation beam targeting using fiducial references; the system may include CBCT-based image-guided radiation therapy (IGRT), 3-D imaging, and record/verify functionalities to track target location during treatment.