Abstract: The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus.

Abstract: The present disclosure discloses an electron linear accelerator system. In the present disclosure, a fast-switching dual-path microwave system is proposed, wherein, one path can be directly connected to an accelerating tube, and the other path can be input into the accelerating tube after a magnitude of the microwave power is changed by devices such as an attenuator, a power divider, a pulse compressor or even an amplifier etc., so as to achieve fast switch of the power input into the accelerator and adjust the energy output by the accelerator.

Abstract: The present application provides an external thermionic cathode distributed x-ray apparatus, comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged in a linear array and installed on the side wall of the vacuum box, each electron transmitting unit is independent to each other; an anode installed in the center inside the vacuum box, and in the direction of length, the anode is parallel to the orientation of the electron transmitting unit, and in the direction of width, the anode has a predetermined angle with respect to the plane of the electron transmitting unit; and a power supply and control system having a high voltage power supply, a focusing power supply; a transmitting control means and a control system; the electron transmitting unit having: a heating filament; a cathode connected to the heating filament; an insulated support enclosing the heating filament and the cathode; a focusing electrode, arranged at t

Abstract: A two dimensional array distributed x-ray apparatus of this disclosure comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged in one plane in a two dimensional array on the wall of the vacuum box; an anode having targets corresponding to the plurality electron transmitting unit arranged in parallel with the plane of the plurality of electron transmitting units in the vacuum box; a power supply and control system having a high voltage power supply connected to the anode, a filament power supply connected to each of the plurality of the electron transmitting units, a grid-controlled apparatus connected to each of the plurality of electron transmitting units, a control system for controlling each power supply; wherein the anode comprises: an anode plate made of metal and parallel to the upper surface of the electron transmitting unit; a plurality of targets arranged on the anode plate and disposed corresponding to the

Abstract: A x-ray apparatus of the present application comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged in a linear array and installed on the wall at one end within the vacuum box, each electron transmitting unit is independent to each other; the electron transmitting unit having: a heating filament; a cathode connected to the heating filament; a grid arranged above the cathode opposing the cathode; anode made of metal and installed at the other end of the vacuum box, and in the direction of length, the anode is parallel to the plane of the grid of the electron transmitting unit, and in the direction of width, the anode has a predetermined angle with respect to the plane of the grid of the electron transmitting unit.

Abstract: The present application provides a curved surface array distributed x-ray apparatus, characterized in that, it comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged on the wall of the vacuum box in multiple rows along the direction of the axis of the curved surface in the curved surface facing the axis; an anode made of metal and arranged in the axis in the vacuum box which comprises an anode pipe and an anode target surface; a power supply and control system having a high voltage power supply connected to the anode, a filament power supply connected to each of the plurality of the electron transmitting units, a grid-controlled apparatus connected to each of the plurality of electron transmitting units, a control system for controlling each power supply.

Abstract: An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.

Abstract: A standing wave electron linear accelerating apparatus and a method thereof are disclosed. The apparatus comprises an electron gun configured to generate electron beams; a pulse power source configured to provide a primary pulse power signal; a power divider coupled downstream from the pulse power source and configured to divide the primary pulse power signal outputted from the pulse power source into a first pulse power signal and a second pulse power signal; a first accelerating tube configured to accelerating the electron beams with the first pulse power signal; a second accelerating tube configured to accelerate the electron beams with the second pulse power signal; a phase shifter configured to continuously adjust a phase difference between the first pulse power signal and the second pulse power signal so as to generate accelerated electron beams with continuously adjustable energy at output of the second accelerating tube.

Abstract: This invention relates to an apparatus producing distributed X-ray, and in particular to a cathode control multi-cathode distributed X-ray apparatus, which produces X-ray that changes focal position in a predetermined order by arranging multiple independent hot cathodes and controlling cathodes in an X-ray source device, and a CT device having said X-ray apparatus.

Abstract: A multi-energy frequency-multiplying particle accelerator and a method thereof are disclosed, an accelerator comprises a pulse power generation unit for generating N pulse signals with different power levels, N is equal to or greater than 2; N microwave power generation units for, under the control of a control signal, generating N microwaves with different energy levels based on said N pulse signals, respectively; a power mixing unit having N entrances and one exit and for inputting a corresponding microwave among said N microwaves from each of said N entrances and outputting said N microwaves from said one exit; a particle beam generation unit for generating N particle beams in synchronization with said N microwaves; and an accelerating unit for using said N microwaves to accelerate said N particle beams, respectively.

Abstract: A multi-energy frequency-multiplying particle accelerator and a method thereof are disclosed in order to overcome the drawbacks of the existing accelerator, such as single energy level, beam current and operating frequency limited by a single power source. The accelerator comprises a pulse power generation unit for generating N pulse signals with different power levels, N is equal to or greater than 2; N microwave power generation units for, under the control of a control signal, generating N microwaves with different energy levels based on said N pulse signals, respectively; a power mixing unit having N entrances and one exit and for inputting a corresponding microwave among said N microwaves from each of said N entrances and outputting said N microwaves from said one exit; a particle beam generation unit for generating N particle beams in synchronization with said N is microwaves; and an accelerating unit for using said N microwaves to accelerate said N particle beams, respectively.

Abstract: Disclosed is a device for outputting high and/or low energy X-rays, in which the electron gun power supply provides power to the electron linear accelerating tube under the control of the control system; the microwave power source accelerates electron beams generated by the electron linear accelerating tube under the control of the control system; the electron linear accelerating tube is connected to the electron gun power supply and the microwave power source respectively, to generate high energy electron beams; the high-voltage electron gun power supply provides power to the high-voltage electron gun under the control of the control system; the high-voltage electron gun is connected to the voltage electron gun power supply to generate low energy electron beams; the radiation target receives the high energy electron beams to generate high energy transmission X-rays, and/or receive the low energy electron beams to generate low energy reflection X-rays.

Abstract: Disclosed is a device and method for generating X-rays having different energy levels as well as a material discrimination system thereof. The method comprises the steps of: generating a first pulse voltage, a second pulse voltage, a third pulse voltage and a fourth pulse voltage, generating a first electron beam having a first beam load and a second electron beam having a second beam load, respectively, based on the first pulse voltage and second pulse voltage, generating a first microwave having a first power and a second microwave having a second power, respectively, based on the third pulse voltage and the fourth pulse voltage, accelerating the first and second electron beams respectively using the first and second microwave to obtain the accelerated first electron beam and the second electron beam, hitting a target with the accelerated first electron beam and the second electron beam to generate a first X-ray and a second X-ray having different energy levels.

Abstract: A mobile electron beam radiation sterilizing apparatus includes a movable chassis vehicle; a cabinet body installed on the chassis vehicle; an electron accelerator, which generates electron beam for articles to be radiation-processed, wherein the electron accelerator is provided in the cabinet body; an accelerator control box, which controls operation of the electron accelerator, a radiation shielding system comprised of: a stationary shielding body covering the electron accelerator; a pair of rotatable shielding doors, through which a passage is formed for an article to be processed to enter or exit, rotatably connected to the stationary shielding body; a motor for switching on and switching off the rotatable shielding doors.

Abstract: The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.

Abstract: The present invention discloses a mobile electron beam radiation sterilizing apparatus, comprising: a movable chassis vehicle (1); a cabinet body (2) installed on the chassis vehicle (1); an electron accelerator (6) which generates electron beam for articles to be radiation-processed; an accelerator control box (31), which controls operation of the accelerator, wherein the electron accelerator (6) is provided in the cabinet body. The invention has advantages as following: since the electron accelerator is provided in the cabinet body of the chassis vehicle, it has a small volume with flexible maneuverability, which can be transferred rapidly in a short time. In addition, the apparatus has no additional requirement of using environment, and does not need any additional construction. The invention can implement electron beam radiation for all kinds of documents and mails and achieve rapid and complete sterilization, reaching safety purpose.

Abstract: Disclosed is a device and method for generating X-rays having different energy levels as well as a material discrimination system thereof. The method comprises the steps of: generating a first pulse voltage, a second pulse voltage, a third pulse voltage and a fourth pulse voltage, generating a first electron beam having a first beam load and a second electron beam having a second beam load, respectively, based on the first pulse voltage and second pulse voltage, generating a first microwave having a first power and a second microwave having a second power, respectively, based on the third pulse voltage and the fourth pulse voltage, accelerating the first and second electron beams respectively using the first and second microwave to obtain the accelerated first electron beam and the second electron beam, hitting a target with the accelerated first electron beam and the second electron beam to generate a first X-ray and a second X-ray having different energy levels.

Abstract: The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.

Abstract: Disclosed is a device for outputting high and/or low energy X-rays, in which the electron gun power supply provides power to the electron linear accelerating tube under the control of the control system; the microwave power source accelerates electron beams generated by the electron linear accelerating tube under the control of the control system; the electron linear accelerating tube is connected to the electron gun power supply and the microwave power source respectively, to generate high energy electron beams; the high-voltage electron gun power supply provides power to the high-voltage electron gun under the control of the control system; the high-voltage electron gun is connected to the voltage electron gun power supply to generate low energy electron beams; the radiation target receives the high energy electron beams to generate high energy transmission X-rays, and/or receive the low energy electron beams to generate low energy reflection X-rays.