Most components needed to produce the therapeutic beam, such as the radiofrequency power source, waveguide system, beam triggering electronics, and a dedicated beam stop, are mounted on or integrated into the primary spherical supporting structure. The different structural elements of the ZAP-X are arrayed to provide the shielding effect that typically is established by the walls, ceiling, and floor of a radiotherapy vault. Utilizing an S-band linear accelerator with a 3.0-MV accelerating potential, this device is designed specifically for stereotactic radiosurgical (SRS) ablation of intracranial and head and neck lesions. The ZAP-X® system is a dedicated, self-contained, and self-shielded radiosurgery system developed and manufactured by ZAP Surgical Systems, Inc., of San Carlos, California. This work is intended to serve as guidance for the radiation safety evaluations of future ZAP-X treatment operations, following local or regional applicable regulatory requirements, and utilizing the unique provision of all or most of the required shielding material as an integral part of the device. The goal of self-shielding is achieved under all but the most exceptional clinical conditions.
#WHATS A SELF POWERED ZAP LINE FULL#
This study postulates that a radiosurgical system can be self-shielded, such that it produces radiation exposure levels deemed safe to the public while operating under a full clinical workload. At the same time, the self-shielded features of the ZAP-X are designed for more consistency of radiation protection, reducing the risk to radiation workers and others potentially exposed from a poorly designed or constructed radiotherapy vault. By using an S-band linear accelerator (linac) and employing integrated minimal but sufficient shielding, the ZAP-X does not typically require a radiation bunker. The ZAP-X® is a newly designed, self-contained, and first-of-its-kind self-shielded therapeutic radiation therapy device dedicated to brain and head and neck stereotactic radiosurgery (SRS).
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