2 results about "Electron linear accelerator" patented technology

A radiation dose rate control method, which relates to the technology of radiation, and an accelerator (100). The control method is used for an electron linear accelerator (100) comprising a microwave source, an electron gun (102) and an accelerating tube (104). The control method comprises: when an electron linear accelerator (100) outputs a beam, monitoring a first event used for indicating a change of a beam output parameter (S610), wherein the beam output parameter comprises a pulse of an electron gun (102) and a microwave power of a microwave source, and the first event is determined by means of radiation protection requirements; and in response to monitoring the first event, cutting off the pulse of the electron gun (102), and switching a first microwave power of the microwave source to a second microwave power, so that the leakage dose rate of a radiation safety boundary is less than or equal to a first preset threshold (S620), wherein the level of dark current in an accelerating tube (104) under the second microwave power is less than or equal to a second preset threshold. Further provided are a radiation dose rate control apparatus, an accelerator (100), and a radiation apparatus.

The application discloses a magnetic lens for an electronic linear accelerator and a structure optimization method, and the structure optimization method comprises the following steps: obtaining structure parameters of the magnetic lens; calculating a magnetic field intensity vector of the magnetic lens; obtaining a corresponding relationship between the structure parameters of the magnetic lens and the magnetic field intensity of the magnetic lens by using the magnetic field intensity vector; and optimizing the structure of the magnetic lens according to the corresponding relationship. The application can improve the maximum magnetic field of the magnetic lens, improve the focusing effect of the magnetic lens, reduce the size of an initial beam spot, provide a data basis for product research and development, and reduce the cost of product research and development.