| 摘要 |
In order to therapeutically use the beams of heavy charged particles, for example high energy protons (100-250 MeV), the patients are irradiated in horizontal position which requires to rotate so called GANTRY, i.e. technically complicated waveguides which have the external dimensions equal to or higher than 10x10x15 m, the mass ranging from 50 to 200 tons and the cost of 8-10 million DOLLAR , around the patient. Said waveguides are energy consuming, costly in operation and require large and expensive spaces for the location thereof. In order to increase the operating capacity of an accelerator, several GANTRIES are used in parallel. Said invention relates to operating procedure for rotation-scanning irradiation of a vertically disposed patient by a horizontal sharp scanning beam of heavy charged particles. A therapeutic irradiation is carried out in one medical treatment room, a total pre-radiation preparation (including a computer tomography) of the patients being carried out in parallel in several preparatory medical rooms which are disposed on the opposite sides of the radiological room. Said pre-radiation preparation and the irradiation of the patient are carried out with the aid of a multi-functional mobile bench on which the patient is fixed in a vertical position inside a thin-walled shell with the aid of vacuumed sealed sacks filled with fine granules. The displacement of each bench or the parts thereof and the fixing elements arranged thereon including the transfer of the bench with the patient from the preparatory room to the medical treatment room and back is carried out automatically by a control computer. The inventive pendulum conveyer makes it possible to simultaneously transport a patient for irradiation and evacuate from the medical treatment room the previous patient without using opposite transport directions. The inventive irradiation method and device for carrying out said method extend clinical capacities (rotation-scanning irradiation instead of static multifield irradiation) and is, with an equal operating capacity (1000-1200 patients per year), by tens times simpler and cheaper than the GANTRY technique for therapeutic proton beams and by thousands times cheaper than the GANTRY for therapeutic multicharged ions beams. |
