221 results about "Electron acceleration" patented technology

The invention discloses a point light source electron accelerator which comprises a sealing box body, a cathode, a laser emitter, a reflecting cover, a grid plate and a mounting plate, the mounting plate is erected in the sealing box body, a mounting hole is formed in the mounting plate, the cathode is mounted in the mounting hole, and the laser emitter is arranged in the sealing box body. The reflecting cover is arranged at the top of the mounting hole; the reflecting cover is a semi-spherical surface, a laser through hole is formed in the top of the semi-spherical surface, and the laser through hole is coaxial with the cathode; the transmitting end of the laser transmitter is aligned with the cathode; the grid plate is mounted below the mounting plate and is aligned with the mounting holes; and an electron outlet is formed below the grid plate. The invention provides a point light source electron accelerator, and the point light source electron accelerator provides a light and miniaturized electron accelerator design, so that the application field of the accelerator is wider.

Disclosed in the present invention are a scanning box device and an electron accelerator, the electron accelerator comprising an accelerating tube and a deflection coil; the scanning box device comprising a scanning chamber and a scanning box, wherein the scanning chamber is sealingly connected to the scanning box; the scanning chamber is arranged above the scanning box; the accelerating tube is arranged above the scanning chamber; the deflection coil is arranged on the outer side of the scanning chamber; and the scanning chamber is made of a non-metallic material. The present invention can prevent the generation of eddy currents in the scanning box, thus reducing the problems of energy loss and heat generation, improving the performance and stability of the apparatus.

The invention provides a gallium nitride-based light emitting diode epitaxial structure, a preparation method thereof and an LED chip. In the epitaxial structure, a multi-stage electron-phonon scattering structure is designed for the situations of electron acceleration and hot electron transition caused by electron ballistic transport and a quantum stark effect structure in a quantum well, the forbidden band width of a quantum well layer in a multi-quantum well barrier layer is gradually increased, and an InGaN step structure is used for inhibiting electron leakage under different situations, so that the quantum efficiency is improved. And the external quantum efficiency under large current is effectively improved.

An electron propulsion engine utilizes the acceleration of electrons to propel a spacecraft through space. The acceleration of the electrons in space emits electromagnetic radiation which can be used to propel the spacecraft. The radiation emission also decelerates the electrons, which allows the decelerated electrons to be recycled for reuse by the electron propulsion engine. The electron propulsion engine includes a first engine module, a second engine module, and an engine control system. The first engine module and the second engine module correspond to two mirror structures that form the electron propulsion engine. The engine control system facilitates the automatic control of the operation of the electron propulsion engine. The first engine module and the second engine module each includes a vacuum housing. The vacuum housing of each engine module is a D-shaped structure that facilitates the acceleration of the electrons and the resulting radiation emission to propel the spacecraft.

The embodiment of the invention discloses a cold cathode flat plate X-ray source capable of coding light emitting and a coding light emitting method, the ray source comprises a vacuum sealing cavity, a cathode assembly and an anode assembly, the cathode assembly and the anode assembly are arranged in the vacuum sealing cavity in a sealing manner, and the cathode assembly and the anode assembly are oppositely arranged at an interval; a vacuum working space for electron acceleration and X-ray generation is formed; the cathode assembly comprises a cathode substrate and a nano cold cathode electron source array arranged on the cathode substrate; the anode assembly comprises an anode substrate and a transmission anode target arranged on the anode substrate; wherein at least one of the nanometer cold cathode electron source array and the transmission anode target is in a coding state: when the nanometer cold cathode electron source array is in the coding state, the nanometer cold cathode electron source array comprises a micro-unit electron source array capable of independently addressing, and a preset coding pattern is formed; and when the transmission anode target is in a coding state, a metal coating with a preset coding pattern is formed on the surface of the anode substrate through a micromachining process so as to integrate a coding function.

The invention provides a planar distribution multi-beam electron gun, and relates to the technical field of microwave electric vacuum, and the planar distribution multi-beam electron gun comprises a housing; the cathode assembly is arranged in the shell, the cathode assembly comprises a cathode head, the surface of the cathode head is provided with a plurality of emitting surfaces which are arranged in a common plane in parallel at intervals, and the emitting surfaces are configured to escape electrons after being heated; the anode is arranged in the shell, and an electric field is formed between the anode and the emitting surfaces so as to accelerate escaped electrons, so that a plurality of electron beams are formed; the focusing electrode is arranged between the cathode head and the anode, an opening is formed in the focusing electrode, a plurality of grid wires are arranged on the opening, a grid gap between every two adjacent grid wires is aligned with the multiple emission surfaces in the emission direction of the electron beams, and the multiple grid wires are constructed to control beam diameters and divergence angles of the multiple electron beams; each electron beam passes through the gate slot aligned with the emission surface on which the electron beam is formed and enters the anode.

The invention relates to the technical field of lasers, and discloses a corona-based creeping spark discharge strong pre-ionization pulse gas laser which comprises a main frame chamber, a pre-ionization device is fixedly mounted at the top of an inner cavity of the main frame chamber, a cathode electrode is arranged at the top of the inner cavity of the main frame chamber, and a connecting copper sheet is fixedly mounted on the lateral upper portion of the inner wall of the main frame chamber. A flow guide plate is fixedly installed on the connecting copper sheet, and an anode electrode is fixedly installed at the top end of the flow guide plate. A corona-based creeping spark discharge strong pre-ionization pulse gas laser is characterized in that a pre-ionization area can be formed on a pre-ionization device and structures on the pre-ionization device, electrons in the pre-ionization area move in an accelerated manner under the action of electric field force, and in the movement process, the electrons in the pre-ionization area are separated from the pre-ionization device. And the electrons and other gas particles are subjected to inelastic collision and ionization or excitation, so that high-concentration and uniform initial electrons are generated, a micro-discharge channel is formed, and continuous seed electrons are provided for a core discharge region of the micro-discharge channel.

An easy-to-adjust X-ray source enhancement system based on a cascaded high-density structure comprises a linear gas nozzle, a metal target, a fixed sleeve, a fixed rod and a three-dimensional mobile platform, and can effectively generate a two-stage high-density structure to enhance radiation of a betatron X-ray source. The device has the advantages of simplicity in operation, compact structure, generation of two-stage high-density structure distribution and good stability. The invention relates to the field of interaction of ultra-short and ultra-strong laser plasmas, in particular to a process of accelerating and driving high-brightness X-rays by laser tail field electrons, in the first stage, generated density falling edges are used for generating electron injection, and stable generation of large-charge electrons is promoted. And the second stage utilizes the characteristics of the high-density platform region to enhance the lateral oscillation of electrons, thereby improving the X-ray radiation energy and photon yield.

The utility model discloses a beam detection device and an electron accelerator, the electron accelerator comprises an accelerating tube, a magnetic lens and a tungsten target, the magnetic lens is arranged at an electron beam outlet of the accelerating tube, and the beam detection device is arranged between the magnetic lens and the tungsten target. The beam detection device comprises a fixing body, an electronic receiving piece, a conductor piece, an insulating piece, a detection circuit and a control circuit, a through hole is formed in the fixing body, the electronic receiving piece is fixed to the periphery of the through hole through the insulating piece and connected with the conductor piece, a plurality of connecting holes are formed in the side face of the fixing body, and the detection circuit is connected with the control circuit. The conductor piece penetrates through the connecting hole to be connected with the detection circuit, the detection circuit transmits a detection signal to the control circuit, and the control circuit transmits a control signal to the magnetic lens. According to the utility model, the electron accelerator can be improved, so that the electron accelerator has the function of detecting the offset of the electron beam, the current of the magnetic lens can be adjusted, and the efficiency of the electron accelerator is improved.

The invention discloses a device and method for accelerating mutation of traditional Chinese medicine seeds based on ray irradiation of an electron accelerator, and relates to the technical field of irradiation breeding equipment, and the device comprises an irradiation rack, a conveying frame, a collecting frame, a tray, a guide disc, the electron accelerator and a servo electric cylinder. The rotation of the guide disc drives the traditional Chinese medicine seeds to generate displacement change under the action of centrifugal force, the guide disc can enable the traditional Chinese medicine seeds to move outwards along the ball bottom type structure of the guide disc in the rotation process, and the traditional Chinese medicine seeds conduct arc-shaped upward diffusion movement along the ball bottom type structure; meanwhile, it is guaranteed that the traditional Chinese medicine seeds can slide inwards to be folded along the ball bottom type structure, and the guiding pieces conduct blocking, dispersing and overturning treatment on the traditional Chinese medicine seeds on the surface of the guiding disc; it is guaranteed that the electron accelerator conducts ray irradiation accelerated mutation treatment on different surfaces of the traditional Chinese medicine seeds, the irradiation uniformity of the surfaces of the traditional Chinese medicine seeds can be effectively improved, and then the irradiation treatment time is shortened.

The utility model discloses a mobile cable irradiation work platform and an electron accelerator system, the mobile cable irradiation work platform comprises a platform base, a shielding device, a take-up and pay-off device and a wire guide wheel set, and the bottom of the platform base is provided with a mobile device; the shielding device comprises a shielding wall main body which is vertically arranged at the rear part of the platform base; the take-up and pay-off device is used for loading and unloading a cable, and the cable on the take-up and pay-off device is connected with the wire guide The wire guide wheel set guides a cable on the take-up and pay-off device to the rear side of the shielding wall body. The electron accelerator system comprises a shielding shell and an electron accelerator; when the platform base moves to an operation position, the shielding wall body and the shielding shell form a shielding cavity, and an electron beam outlet of the electron accelerator is aligned with a cable on the rear side of the shielding wall body in the shielding cavity. The self-shielding device can be matched with a miniaturized electron accelerator to form a self-shielding structure, the occupied space is greatly reduced, the installation is convenient, and the production efficiency can be improved.

The invention relates to an electron accelerator cable irradiation device, and relates to the technical field of electron accelerator cable irradiation, and the device comprises an electron accelerator body, an irradiation block, a sliding assembly, a driving assembly, a transmission assembly, a clamp assembly and a collection box. Automatic conveying of the cable is achieved through the sliding assembly and the driving assembly in the sliding groove, and the driving assembly and the transmission assembly are used for coordinating work, so that the clamp assembly can clamp and rotate the cable, conveying and rotating of the cable are conducted at the same time, and uniform irradiation is ensured. And finally, the irradiated cable is recycled by the collection box. According to the invention, the efficiency and uniformity of cable irradiation are improved, the requirement of manual operation is reduced, and the production automation level is improved.

The invention discloses an electricity leading device and an electron accelerator, the electron accelerator comprises an accelerating tube device, the accelerating tube device comprises an insulating tube, the insulating tube is provided with a plurality of electricity leading holes, the accelerating tube device comprises a plurality of electrode plate devices, the electricity leading device comprises an electricity leading screw, a screw head and a sealing ring, and the sealing ring is provided with a sealing ring. An annular groove is formed in the front side of the screw head, a sealing ring is installed in the annular groove, the electricity leading screw penetrates through the electricity leading hole to be in threaded connection with the electrode slice device, and the screw head presses the sealing ring on the outer side of the electricity leading hole in the outer surface of the insulating tube. According to the electricity leading device, the connection effect of the electrode plate and the anode resistor can be achieved, meanwhile, the position of the electrode plate device can be fixed, the electricity leading device can further seal the accelerating tube of the electron accelerator, the accelerating tube is convenient and rapid to assemble, and the production speed is increased.

The utility model provides an ultrahigh-dose electron beam irradiation treatment system for products, and belongs to the technical field of irradiation processing of industrial electron accelerators. Comprising an electron accelerator, an under-beam reciprocating platform device, a container loading and unloading mechanism, a container conveying mechanism and a loading and unloading area. The two ends of the container conveying mechanism are provided with a feeding area and a discharging area respectively, and the feeding area and the discharging area jointly form a feeding and discharging area. An under-beam reciprocating platform device is arranged in the middle area of the container conveying mechanism, the electron accelerator is arranged over the under-beam reciprocating platform device, and container loading and unloading mechanisms are arranged on the left side and the right side above the under-beam reciprocating platform device. The linear reciprocating motion of the under-beam reciprocating platform device is perpendicular to the electron acceleration direction of the electron accelerator and perpendicular to the electron scanning direction of the electron accelerator. According to the utility model, dynamic circulating irradiation is realized through constant-speed operation in a fixed stroke, highly uniform irradiation dose is synchronously realized under the condition that the requirement of ultrahigh-dose irradiation is met, and the processing yield of products is improved.

The invention relates to an under-beam device for treating sewage through electron beam irradiation. The device comprises a water storage tank, an inclined flow channel, a rectifying device, a sewage outlet and an irradiation area. The sewage storage tank is arranged at the topmost end and used for collecting sewage; the inclined flow channel is positioned below a beam outlet of the electron accelerator and is used for guiding sewage to flow along a preset path and receiving electron beam irradiation; the rectifying device is arranged at the upper part of the runner and is used for adjusting and optimizing the flowing state of sewage; an electron accelerator is arranged above the irradiation area and is used for carrying out irradiation treatment on the sewage; the sewage outlet is used for discharging the treated sewage. The speed distribution of the sewage flowing layer is regulated and controlled by adjusting the inclination angle and the gradual shrinkage angle of the inclined flow channel and the structure of the vertical baffle, and the uniformity of the sewage absorbing dose is improved. The device can improve the utilization rate of electron beam energy and enhance the sewage treatment effect, and has remarkable economic value.

The invention discloses a generating device of a surface electromagnetic wave radiation source, which can be applied to the technical field of electromagnetic waves. The plasma excitation unit is used for generating plasma, and the plasma acceleration unit comprises an electron acceleration power supply, a cathode end face, a slow wave circuit, a plurality of insulation spacers, a plurality of acceleration poles and an output end face. An electron beam channel is formed in the middle area of the upper surface of the slow wave circuit and the middle area of the lower surface of the cathode end face, the insulation spacers, the acceleration poles and the output end face, and meanwhile the insulation spacers and the acceleration poles are arranged between the cathode end face and the output end face at intervals. The speed of the plasma in the electron beam channel output by the plasma excitation unit is adjusted through the plasma acceleration unit, so that the electromagnetic wave radiation source under the target frequency, the target bandwidth or the target power can be output, and the electromagnetic wave radiation source with high frequency, wider bandwidth and high power can be obtained.

The present invention provides a gallium nitride-based light-emitting diode epitaxial structure, a preparation method thereof, and an LED chip. In the epitaxial structure, a multi-level electron-phonon scattering structure, a stepwise increase in the bandgap width of the quantum well layer in the multi-quantum well barrier layer, and an InGaN step structure are designed to suppress electron leakage in different situations, targeting electron ballistic transport, electron acceleration caused by the quantum Stark effect structure in the quantum well, and hot electron transition. This effectively improves the external quantum efficiency under high current.

The invention discloses a beam spot adjusting method and an electron accelerator, the electron accelerator comprises an anode potential adjusting device and an electron extraction device, a hot cathode of the electron accelerator is arranged on the electron extraction device, and the beam spot adjusting method comprises the following steps: acquiring physical parameters of an accelerating tube of the electron accelerator; calculating the beam waist position of the electron beam bunch according to the physical parameters of the accelerating tube; the control quantity of an anode potential adjusting device is obtained according to the girdling position; and adjusting the beam spot size of the outlet of the accelerating tube by using the control quantity. According to the invention, the extraction electric field distribution can be obtained, the purpose of controlling the beam envelope is achieved, so that the electron beam bunch safely arrives at the outlet of the electron accelerator, and the dynamic adjustment of the accelerator extraction outlet beam spot size within a certain range is realized by controlling the potential difference between the cathode and the anode.

An anode potential adjustment device and an electron accelerator. The electron accelerator comprises a first electrode sheet (201), a second electrode sheet (202) and a high-voltage end (203), wherein the high-voltage end (203) is connected to the first electrode sheet (201). The anode potential adjustment device comprises a varistor (101) and an oil cylinder (102), wherein the varistor (101) is connected between the first electrode sheet (201) and the second electrode sheet (202); and the oil cylinder (102) is connected to a hydraulic pump by means of a hydraulic oil pipe, a piston of the oil cylinder is connected to the varistor (101), and the piston is configured to drive the varistor (101) to adjust a resistance value. The anode potential adjustment device can observe changes of a beam in real time when a high voltage and the beam exist at the same time, thereby making it easier to select an anode resistor (1010).

The present invention relates to an accelerating tube of an electron accelerator, comprising a plurality of electrode sheets and a plurality of insulating rings which are stacked. Each electrode sheet comprises an edge part; the edge part of each electrode sheet is connected to a first insulating ring by means of a corresponding first glue layer and is connected to a second insulating ring by means of a corresponding second glue layer; a plurality of through holes which are separated from each other are formed in each edge part; and each first glue layer and each second glue layer are communicated by means of the corresponding edge part and the through holes so that the first insulating ring and the second insulating ring are directly bonded. In the accelerating tube of the electron accelerator of the present invention, the internal stress of the electrode sheets is eliminated by means of the through holes in the edge parts of the electrode sheets, and adjacent insulating rings are directly bonded by means of the through holes, thereby improving the connection strength of the electrode sheets and the insulating rings, and enabling the insulating rings to be not prone to damage, ensuring that the accelerating tube can safely and reliably operate under ultrahigh vacuum conditions.

The invention discloses a device and method for accelerating ripening of forest tree seeds based on ray irradiation of an electron accelerator, and relates to the technical field of electron beam irradiation, the device comprises a transportation mechanism, an irradiation mechanism and a conveying box, the transportation mechanism is responsible for transporting the conveying box to the irradiation mechanism, one side of the transportation mechanism is further provided with a discharging mechanism, and the discharging mechanism is used for conveying the conveying box to the irradiation mechanism. The discharging mechanism is responsible for providing forest tree seeds for the conveying box, and the irradiation mechanism is responsible for irradiation and ripening of the forest tree seeds in the conveying box. The conveying mechanism is used for conveying empty conveying boxes, a certain amount of forest tree seeds can be poured into the empty conveying boxes through the discharging mechanism in the conveying process, then the conveying boxes containing the forest tree seeds are conveyed to the irradiation mechanism, and the irradiation mechanism conducts irradiation ripening on the forest tree seeds.

The invention relates to the technical field of seed irradiation, and discloses a vegetable seed irradiation device based on electron accelerator rays and a using method thereof.The vegetable seed irradiation device comprises a driving mechanism, the driving mechanism further comprises a base, the top of the base is fixedly connected with a fixing frame, a driving motor is started, the driving motor drives a rotating shaft to rotate, and the rotating shaft drives a rotating frame to rotate after rotating; the rotating frame rotates to drive an annular rotating plate to rotate, a first gear is meshed with a second gear, after the annular rotating plate rotates, the first gear drives a second gear to rotate, after the second gear rotates, a second disc is driven to rotate through a plurality of first sliding rods, after the second disc rotates, a first rotating rod and a round rod are driven to rotate, and the round rod rotates to drive an annular block to rotate. An annular block drives a plurality of rectangular strips to move left and right on the side wall of a fixed block II in a reciprocating manner when rotating, and the seeds are intermittently and quantitatively put, so that the quantity of the seeds put into the annular rotating plate each time can be consistent, and the seed distribution uniformity in the irradiation process is improved.

The utility model relates to the field of conveying devices, in particular to an electron accelerator irradiation material moving and conveying device which comprises a supporting table. The device further comprises a protection assembly, the protection assembly comprises a first protection cover, a connecting rod, a connecting block, a limiting pin, a second protection cover, a connecting groove and a limiting hole, a conveying belt is arranged at the top of the supporting table, two mounting grooves are symmetrically formed in the top of the conveying belt, and the first protection cover is arranged in the mounting grooves. Two connecting rods are symmetrically connected to the upper end of the right side of the first protective cover, connecting blocks are installed at the other ends of the connecting rods, and limiting pins are installed on the front sides in the connecting blocks; according to the irradiation material conveying device, the protection assembly is arranged, rays in an irradiation area can be effectively blocked, and the problems that according to a common irradiation material conveying device, due to the lack of the protection assembly, the irradiation rays are likely to be reflected to the body of a worker, the body of the worker is hurt, and the use safety is reduced are solved.

The invention relates to the technical field of accelerator beam calibration, in particular to an electron accelerator beam calibration water absorption target device which comprises a suspension support, an installation platform is arranged at one end of the suspension support, and a calibration target is detachably installed on the installation platform; the calibration target comprises a detachable water tank mounted on the platform, the water tank is filled with a liquid medium for absorbing beam energy, and no bubble exists in the water tank; the water tank is horizontally arranged along the beam propagation direction of the electron accelerator, and the cross section is perpendicular to the beam incidence direction; according to the invention, the regular hexagonal honeycomb array measurement subareas are formed in the water tank through the thermal insulation partition plates, the regular hexagonal honeycomb array measurement subareas are further refined into the independent spacer areas in cooperation with the net-shaped partitions, and the regular hexagonal densely-laid structure has no measurement blind area and can completely cover the cross section of a beam; meanwhile, the side lengths and the volumes of all the partitions are consistent, and the standard unification of all the measuring units is ensured.

The invention discloses an accelerating tube standard module, a ceramic tube and an electron accelerator, the electron accelerator comprises at least one accelerating tube standard module, each accelerating tube standard module comprises a ceramic tube, and the top and the bottom of each ceramic tube are provided with connecting pieces. The top connecting piece is used for being connected with an accelerating tube upper flange or the bottom of another ceramic tube, the bottom connecting piece is used for being connected with an accelerating tube lower flange or the top of another ceramic tube, a plurality of electrode plate mounting positions are arranged on the inner surfaces of the ceramic tubes, and a plurality of electricity leading holes of divider resistors are formed in the outer surfaces of the ceramic tubes. According to the accelerating tube module, accelerating tubes can be rapidly assembled through the accelerating tube module, the number of the accelerating tube modules can be adjusted to adapt to the accelerating tubes with different voltage values, the production cost is greatly reduced, and the accelerating tube module is firm in structure, low in rejection rate, easy to install and operate and easy to produce.

The present invention relates to an electron microscope and a method for using the same, belonging to the technical field of electron microscopes. The electron microscope can integrate magnetic lens functions and electrostatic lens functions, and realizes the conversion of the two lens functions by adjusting the position of an annular pole shoe and the potential difference. The operation is simple and the implementation is convenient. The electron microscope comprises: an electron source; an electron accelerating electrode; an objective lens arranged below the electron accelerating electrode; an inner pole shoe arranged on the inner side surface of the inner end of an upper shell of the objective lens and arranged in contact with the inner side surface of the upper shell; an outer pole shoe arranged on the inner side of the inner end of a lower shell of the objective lens and arranged longitudinally; a motion control device arranged on the inner side of the objective lens and below the inner pole shoe; an annular pole shoe or a deflection device or an electron detector arranged on the motion control device and realizing up and down movement under the action of the motion control device; the annular pole shoe is electrically connected to a voltage regulator; and a sample stage is located at the bottom.

This invention discloses a vortex cooling device and an electron accelerator system, including a gas supply module, at least one vortex cooling component, and a heat exchange tube. The vortex cooling component has a vortex air channel and is provided with a gas inlet, a cold gas outlet, and a hot gas outlet. The cold gas outlet is connected to the first end of the vortex air channel, and the hot gas outlet is connected to the last end of the vortex air channel. The gas inlet is connected to the vortex air channel and is located between the cold gas outlet and the hot gas outlet. The gas supply end of the gas supply module is connected to the gas inlet. The heat exchange tube is used to contact the converging plate of the electron accelerator for heat exchange. The heat exchange tube includes a heat exchange air channel, at least one air inlet, and an air outlet. The heat exchange air channel is connected to the air inlet and the air outlet respectively. The cold gas outlet is connected to the air inlet, and the air outlet is connected to the irradiation cavity. This design has a good cooling effect, making the electron accelerator operate stably and continuously providing inert gas to the irradiation cavity, which is safe and reliable.

The invention discloses a 10 MeV-level high-brightness ultrafast electron beam source based on quasi-linear laser wake field acceleration and a generation device thereof. Miniaturized repetition frequency ten-megawatt-level femtosecond laser interacts with a gas target capable of generating special gas flow distribution; based on a new quasi-linear laser wake field electron acceleration mechanism, the generation of a 10 MeV-level high-brightness high-performance ultrafast electron beam source can be accelerated. The device effectively solves the problem that it is difficult to accelerate generation of ultrafast electron beams with low energy dispersion, low emittance, high flow intensity, femtosecond pulse width, high brightness and high performance in a sub-ten-megawatt femtosecond laser driving wake field. Therefore, the method is expected to be widely applied to advanced fields such as ultrafast electron diffraction imaging and pumping detection, laser wake field and plasma diagnosis and measurement, high-energy particle acceleration, novel ultrafast coherent radiation source generation and the like.

The utility model discloses a high-energy standing wave linear electron accelerator, which relates to the technical field of linear electron accelerators and comprises an electron accelerator body, a workbench arranged at the lower end of the electron accelerator body, a sleeve arranged on one side of the upper end of the workbench, a U-shaped frame horizontally and rotatably arranged at the upper end of the sleeve, and a connecting plate vertically and rotatably arranged in the U-shaped frame. A T-shaped ring block is arranged in the arc-shaped plate, a supporting plate is arranged at the upper end of the T-shaped ring block, a first U-shaped plate is arranged at the upper end of the supporting plate, a second U-shaped plate is arranged on the side, away from the connecting plate, of the bottom end of the electron accelerator body, and a rotating plate is arranged between the first U-shaped plate and the second U-shaped plate. A semi-gear ring is arranged on the outer side of the arc-shaped plate, a gear is arranged on one side of the semi-gear ring, and a first motor is arranged at the upper end of the gear; according to the utility model, the vertical and horizontal angles of the front end of the electron accelerator body can be flexibly adjusted, and the applicability is improved.