Power management module and method applied to IGRT and CBCT high-voltage generator

Abstract

The invention relates to the technical field of IGRT and CBCT, and discloses a power supply management module and method applied to IGRT and a CBCT high voltage generator, the CBCT high voltage generator comprises a power supply management module, an inversion module and a boost module, the power supply management module is connected with the inversion module, the power supply management module is used for providing direct current for the inversion module, and the boost module is connected with the inversion module. The boosting module is connected with the inversion module, and the inversion module outputs high-frequency alternating current which is further boosted and rectified by the boosting module and then is added to two poles of the bulb tube so as to generate rays. Through real-time detection of the CBCT high-voltage generator, such as power supply voltage overrun, post-stage short circuit and open-phase detection, once abnormity occurs in a certain link, the fault state is rapidly switched to, power supply of the power management module is cut off, occurrence of serious accidents is avoided, safety and reliability of the system are guaranteed, and troubleshooting is facilitated at the same time.

Description

technical field [0001] The invention relates to the technical fields of IGRT and CBCT, in particular to a power management module and method applied in IGRT, and a CBCT high-voltage generator. Background technique [0002] There are systematic and random errors in tumor precision radiotherapy, which are generally caused by changes in the patient's anatomical position during treatment and fractional treatment. Even with various auxiliary positioning devices and strict operation, the error may still reach several millimeters. In recent years, a technology that installs diagnostic cone beam CT (Cone Beam CT, CBCT) on a linear accelerator, that is, image-guided conformal intensity-modulated radiotherapy (Imaging Guided RT, IGRT), has emerged. It realizes imaging-guided radiotherapy, that is, before each radiotherapy treatment, CBCT scans a three-dimensional image of the tumor target area and a certain volume around it in the treatment body, and compares it with the treatment pl...

AI Technical Summary

Problems solved by technology

At present, there is no KV-level high-voltage generator specially used for linear accelerators with IGRT functions in China, and the power supply part of traditional high-voltage generators only rectifies and filters three-phase AC power to the main inverter circuit. When a fault occurs, such as power supply It cannot be detected when the voltage exceeds the limit, the short circuit of the rear stage, or the lack of phase, which poses a great safety hazard and is not conducive to troubleshooting

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