Nuctech Company Limited

Tsinghua University

Other

Nuray Technology Co., Ltd

Xiying Liu

Yaohong Liu

Wei Jia

Wei Yin

Chuanxiang Tang

Jinsheng Liu

Jianjun Gao

Ziran Zhao

Kejun Kang

Jianping Gu

Huaibi Chen

Xinshui Yan

Hao Shi

Yuanjing Li

Feng Gao

Huaping Tang

Zhanfeng Qin

Jinsong Pan

Haokun Wang

Embodiments of the disclosed technology provide an apparatus for controlling a standing wave linear accelerator. An example standing wave linear accelerator includes an accelerating tube, a motor, and a microwave power source connected between the accelerating tube and the motor. An example apparatus includes a main processor configured to receive an envelope signal of a reflected wave signal output by the accelerating tube, determine whether an amplitude of the envelope signal is greater than an envelope threshold, and if it is determined that the amplitude of the envelope signal is less than the envelope threshold, determine whether to change a rotation direction of the motor by comparing the amplitude of the envelope signal with an envelope reference signal stored in a memory. The memory is connected to the main processor and is configured to store the envelope threshold and the envelope reference signal.

Method, apparatus and system for controlling standing wave linear accelerator

Embodiments of the present disclosure disclose a multi-output high-voltage power supply including a channel selection circuit () including a plurality of switches; and a high-voltage power supply module () connected to the channel selection circuit (), wherein the high-voltage power supply module () includes a fine adjusting power supply component () and a plurality of coarse adjusting power supply components (-to-N) connected in series, wherein one high-voltage output terminal of the high-voltage power supply module () is connected to a common terminal of the channel selection circuit (), and the other high-voltage output terminal of the high-voltage power supply module () is grounded through a current sampling resistor.

Multi-output high-voltage power supply and distributed ray source with multi-output high-voltage power supply

This invention provides a scan method, scan system and radiation scan controller, and relates to the field of radiation. The scanning method includes obtaining detection data of an object to be inspected under radiation scanning using a detector, adjusting an accelerator output beam dose rate and/or an output electron beam energy level of a radiation emission device according to the detection data. With this method, working conditions of the accelerator of the radiation emission device may be adjusted according to the detection data detected by the detector, so that for a region having a larger mass thickness, a higher output beam dose rate or a higher electron beam output energy level is adopted to guarantee satisfied imaging technical indexes, for a region having a smaller mass thickness, a lower output beam dose rate or a lower electron beam output energy level is adopted to reduce the environmental dose level while guaranteeing satisfied imaging technical indexes.

Scan method, scan system and radiation scan controller

This invention provides a scan method, scan system and radiation scan controller, and relates to the field of radiation. Wherein, the scan method of this invention comprises: obtaining detection data of an object to be inspected under radiation scanning using a detector; adjusting an accelerator output beam dose rate and/or an output electron beam energy level of a radiation emission device according to the detection data. With this method, working conditions of the accelerator of the radiation emission device may be adjusted according to the detection data detected by the detector, so that for a region having a larger mass thickness, a higher output beam dose rate or a higher electron beam output energy level is adopted to guarantee satisfied imaging technical indexes, for a region having a smaller mass thickness, a lower output beam dose rate or a lower electron beam output energy level is adopted to reduce the environmental dose level while guaranteeing satisfied imaging technical indexes.

The present invention provides a pulse modulating power source, which comprises: a plurality of discharging modules connected in series during discharging; a plurality of triggers corresponding to said plurality of discharging modules, wherein each trigger provides a trigger signal to the corresponding discharging module to turn it on; a control logic module for controlling the trigger signals so as to turn on said plurality of discharging modules successively with a time delay; an output terminal for outputting a voltage.

Apparatus and method for controlling pulse output

The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time tand time tappear alternately.

Apparatus and method for voltage alternating pulse output

Growing community of inventors

Beijing, China

Xiying Liu