A kind of low-energy electronic accelerator device
Technical field
The utility model relates to the electron accelerator technical fields of irradiation processing, and in particular to a kind of low-energy electronic accelerator
Device.
Background technique
Electron accelerator RADIATION PROCESSING is paid attention to by most countries as civilian non-powered Application of Nuclear Technology, and
Some developed countries produce considerable economic benefit and social benefit, it is widely used in, and crosslinked polymer is modified, coating is solid
The process such as change, polyethylene foam, heat-shrinkage material, the activity improvement of semiconductor, fresh-keeping, the flue gas irradiation desulphurization denitration of food sterilizing.
With high-frequency and high-voltage type dynamitron and high pressure in the existing electron accelerator technology for irradiation processing
Based on transformer type electron accelerator, the acceleration of this type is all made of high frequency or intermediate frequency power supply power supply, accelerator inner structure part
High voltage step-up is carried out, using the power supply of power generation pole or coupling power supply mode, its structure is complicated, technical difficulty is big, makes for electron gun power supply
Valence is high, bulky, and low energy work in fluctuate it is larger, it is unstable the disadvantages of.
Summary of the invention
In view of this, utility model aims to solve the shakinesses of electron accelerator low energy in the prior art, line function
The disadvantages of rate is small, bulky provides a kind of novel low-energy electronic accelerator device, high-frequency and high-voltage power supply is used to power, collection
At electron gun filament power supply power supply mode, defect existing in the prior art can be effectively solved.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of low-energy electronic accelerator device, including high-frequency and high-voltage power supply, acceleration pipe unit, scanning chamber and vacuum hair
Raw unit, the both ends for accelerating pipe unit are electrically connected with high-frequency and high-voltage power supply and connect with scanning Chamber vacuum, institute respectively
Vacuum generating unit described in scanning chamber is stated, the acceleration pipe unit includes that an accelerating tube steel cylinder and setting are accelerating
Accelerating tube in pipe steel cylinder, one end of the accelerating tube is extended with acceleration pipe electrode, and is provide with one at the acceleration pipe electrode
High-field electrode portion is also integrated with an electron gun in the high-field electrode portion, and the electron gun is electrically connected with accelerating tube, and electronics
The end of rifle is provided with electron gun electrodes, and the high-frequency and high-voltage power supply passes through a High voltage output conducting wire and a filament for conductance respectively
Line is connect with the acceleration pipe electrode and electron gun electrodes being arranged in high-field electrode portion.
Preferably, the input voltage of the high-frequency and high-voltage power supply is power-frequency voltage, collection in the high-frequency and high-voltage power supply
At having accelerating tube high voltage power supply and electron gun power supply, the accelerating tube high voltage power supply and electron gun power supply are set by one
The controller control pressure regulation outside high-frequency and high-voltage power supply is set, to export accelerating tube voltage rating and electron gun filament voltage.
Preferably, the high-frequency and high-voltage power supply is connected to by a connecting pipe with accelerating tube steel cylinder, the connecting pipe
It is inside additionally provided with a high-tension shielding pipe, the both ends of the high-tension shielding pipe extend respectively to inside high-frequency and high-voltage power supply and high-voltage electricity
In the portion of pole, the High voltage output conducting wire and filament current supply line are placed in the high-tension shielding pipe.
Preferably, the both ends of the High voltage output conducting wire respectively with the accelerating tube high voltage power supply in high-frequency and high-voltage power supply
And the acceleration pipe electrode connection in high-field electrode portion, the both ends of the filament current supply line are respectively and in high-frequency and high-voltage power supply
Electron gun electrodes connection in electron gun power supply and high-field electrode portion.
Preferably, filling six-component force balance gas inside the connecting pipe and inside accelerating tube steel cylinder, fill out
Filling insulating gas pressure is 0.2~0.6Mpa.
It is constituted preferably, the accelerating tube overlaps vacuum welding by multiple ceramic rings and multiple electrodes piece, the electrode
It is provided with grading ring at the outer rim of piece, and is in series with multiple divider resistances between adjacent electrode piece.
Preferably, the scanning chamber includes scan box and scanning room, one end of the scanning room passes through vacuum tube
Road is connect with accelerating tube steel cylinder, and the other end is connected to scan box one end, it is equipped with 0.01 at the other end of the scan box~
The titanium foil of 0.03mm thickness is provided with a sweeping magnet, the side of the scan box in the exit of vacuum pipe in the scanning room
Face is connect with vacuum generating unit.
Preferably, the vacuum generating unit includes vacuum generator and vacuum detection instrument, the vacuum generator
It is connected to by pipeline with scan box, and vacuum detection instrument is set on pipeline.
Compared with prior art, a kind of low-energy electronic accelerator device provided by the utility model, the device have been abandoned existing
Have and high voltage step-up is carried out to accelerator inner structure part, electron gun power supply is using the power supply of power generation pole or the confession of coupling power supply mode
Electric mode directlys adopt the mode for integrating accelerating tube high voltage power supply and electron gun power supply in high-frequency and high-voltage power supply, passes through height
It presses output lead and filament current supply line to connect power supply with pipe electrode and electron gun electrodes is accelerated, reduces the structure of whole device
Complexity, with beam power is big, energy conversion efficiency is high, small in size, steady operation and other merits.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of low-energy electronic accelerator device provided by the utility model;
Fig. 2 is the structural schematic diagram of accelerating tube in a kind of low-energy electronic accelerator device provided by the utility model.
Appended drawing reference involved in attached drawing and component part explanation:
1, high-frequency and high-voltage power supply;2, accelerating tube steel cylinder;3, accelerating tube;4, connecting pipe;5, accelerate pipe electrode;6, high-voltage electricity
Pole portion;7, electron gun;8, electron gun electrodes;9, High voltage output conducting wire;10, filament current supply line;11, high-tension shielding pipe;12, it sweeps
Retouch box;13, scanning room;14, vacuum pipe;15, titanium foil;16, sweeping magnet;17, vacuum generator;18, vacuum detection instrument;
301, ceramic ring;302, electrode slice;303, grading ring;304, divider resistance.
Specific embodiment
With high-frequency and high-voltage type dynamitron and high pressure in the existing electron accelerator technology for irradiation processing
Based on transformer type electron accelerator, the acceleration of this type is all made of high frequency or intermediate frequency power supply power supply, accelerator inner structure part
High voltage step-up is carried out, using the power supply of power generation pole or coupling power supply mode, its structure is complicated, technical difficulty is big, makes for electron gun power supply
Valence is high, bulky, and low energy work in fluctuate it is larger, it is unstable the disadvantages of.
For disadvantages mentioned above, the utility model provides a kind of low-energy electronic accelerator device, is accelerated with solving existing electronics
Device there are the problem of.
The technical solution of the utility model will be clearly and completely described by specific embodiment below.Obviously,
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, fall within the protection scope of the utility model.
Referring to shown in FIG. 1 to FIG. 2, a kind of low-energy electronic accelerator device, including high-frequency and high-voltage power supply 1, accelerate pipe unit,
Scan chamber and vacuum generating unit.Accelerate pipe unit both ends be electrically connected respectively with 1 source of high-frequency high-voltage and with scanning
Chamber vacuum connection, scans chamber vacuum generating unit.
Accelerating pipe unit includes an accelerating tube steel cylinder 2 and the accelerating tube 3 that is arranged in accelerating tube steel cylinder 2, and high frequency is high
Voltage source 1 is connected to by a connecting pipe 4 with accelerating tube steel cylinder 2, is filled inside 4 inside of connecting pipe and accelerating tube steel cylinder 2
Six-component force balance gas, filling insulating gas pressure are 0.2~0.6Mpa.
One end of accelerating tube 3, which is extended with, accelerates pipe electrode 5, and a high-field electrode portion is provide at the acceleration pipe electrode 5
6.It is also integrated with an electron gun 7 in high-field electrode portion 6, pipe electrode 5 and electrical rifle 7 is accelerated to be arranged at the end of accelerating tube 3.
It is electrically connected between electron gun 7 and accelerating tube 3, and the end of electron gun 7 is provided with electron gun electrodes 8.High-frequency and high-voltage power supply 1 divides
Not Tong Guo a High voltage output conducting wire 9 and one filament current supply line 10 and the acceleration pipe electrode 5 and electricity that are arranged in high-field electrode portion 6
Sub- gun electrode 8 connects.
(scheme for the accelerating tube high voltage power supply that has been internally integrated that 1 specific structure of high-frequency and high-voltage power supply is high-frequency and high-voltage power supply 1
In be not shown) and electron gun power supply (not shown), and the two is arranged in outside high-frequency and high-voltage power supply 1 by one
Controller controls pressure regulation, to export 7 filament voltage of 3 voltage rating of accelerating tube and electron gun.The input voltage of high-frequency and high-voltage power supply 1
For power-frequency voltage, generally 220V.
A high-tension shielding pipe 11, high pressure screen are additionally provided in the connecting pipe 4 of high-frequency and high-voltage power supply 1 and accelerating tube steel cylinder 2
The both ends for covering pipe 11 extend respectively in 1 inside of high-frequency and high-voltage power supply and high-field electrode portion 6, above-mentioned High voltage output conducting wire 9 and lamp
Silk current supply line 10 is placed in the high-tension shielding pipe 11.In order to realize high-frequency and high-voltage power supply 1 respectively to accelerating tube 3 and electron gun
7 power supply, the both ends of High voltage output conducting wire 9 respectively in high-frequency and high-voltage power supply 1 accelerating tube high voltage power supply and high-field electrode portion 6
Interior acceleration pipe electrode 5 connects, the both ends of filament current supply line 10 respectively with the electron gun power supply in high-frequency and high-voltage power supply 1
And the electron gun electrodes 8 in high-field electrode portion 6 connect, to meet above-mentioned power supply mode requirement.
In the present embodiment, accelerating tube 3 overlaps vacuum welding by multiple ceramic rings 301 and multiple electrodes piece 302 and constitutes, vacuum
Degree is up to 10-6Pa.It is provided with grading ring 303 at the outer rim of electrode slice 302, is used for uniform electric field.It is gone here and there between adjacent electrode piece 302
Multiple divider resistances 304 are associated with, for focusing electric field and accelerating field needed for generating electron beam.
Above-mentioned scanning chamber specifically includes scan box 12 and scanning room 13.Wherein, one end of scanning room 13 passes through vacuum tube
Road 14 is connect with accelerating tube steel cylinder 2, and the other end is connected to 12 one end of scan box.0.01 is equipped at the other end of scan box 12
The titanium foil 15 of~0.03mm thickness guarantees the launching electronics in a vacuum of electron gun 7 for completely cutting off 12 inner vacuum of scan box and atmosphere
Without occurring to aoxidize intoxicating phenomenon, and guarantee to dissipate and decay in electron beam accelerator.In vacuum in scanning room 13
The exit of pipeline 14 is provided with a sweeping magnet 16, and dotted electron beam is scanned into planar and is irradiated to product.
The side of scan box 12 is connect with vacuum generating unit.Vacuum generating unit includes vacuum generator 17 and vacuum inspection
Instrument 18 is surveyed, vacuum generator 17 is connected to by pipeline with scan box 12, and vacuum detection instrument 18 is arranged on pipeline.
The utility model has been abandoned existing to accelerator inner structure part progress high voltage step-up, electron gun power supply use hair
The power supply mode of electrode power supply or coupling power supply mode, directlys adopt and integrates accelerating tube high voltage power supply and electricity in high-frequency and high-voltage power supply
The mode of sub- rifle power supply is connect by High voltage output conducting wire and filament current supply line with pipe electrode and electron gun electrodes is accelerated
Power supply, reduces the structure complexity of whole device, with beam power is big, energy conversion efficiency is high, small in size, the operation is stable
The advantages that.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.