CN104900467B - It is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line - Google Patents
It is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line Download PDFInfo
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- CN104900467B CN104900467B CN201510271145.XA CN201510271145A CN104900467B CN 104900467 B CN104900467 B CN 104900467B CN 201510271145 A CN201510271145 A CN 201510271145A CN 104900467 B CN104900467 B CN 104900467B
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- cathode
- cylinder
- radial direction
- control pole
- gun housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/04—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/485—Construction of the gun or of parts thereof
Abstract
The invention discloses a kind of radially electronics note electron gun being applied to radial direction logarithmic spiral micro-stripe slow wave line, belong to the electron gun in vacuum electron device technical field, its object is to provide a kind of radially electronics note electron gun being applied to radial direction logarithmic spiral micro-stripe slow wave line, make can synchronize well between this electron gun and the radial direction logarithmic spiral micro-stripe slow wave line employing the work of plane sector electron beam.Its technical scheme is：Including gun housing, in gun housing, it is provided with cathode assembly, control pole and anode, the cathode taps of cathode assembly are placed in the radial direction in the hole of control pole.The present invention is exclusively used in radially electronics note electron gun matching used with radial direction logarithmic spiral micro-stripe slow wave line.
Description
Technical field
The invention belongs to vacuum electron device technical field, it is related to a kind of electron gun, more particularly, to one kind is applied to radially
The radially electronics note electron gun of logarithmic spiral micro-stripe slow wave line.
Background technology
Travelling-wave tube is an of paramount importance class microwave power amplifier part in vacuum microwave person in electronics, and it has power
Greatly, the feature of efficiency high, high gain, bandwidth and life-span length, thus it is widely used in radar, guidance, interference, communication, microwave
The fields such as remote sensing, actinometry, its performance directly decides the level of equipment.
One typical travelling-wave tube is by electron gun, focusing system, slow wave line（Slow-wave structure）, input/output unit and collection
Pole five part composition.As the core component of travelling-wave tube, the task of slow wave line is transmission high-frequency electromagnetic traveling wave and makes electromagnetic wave
Phase velocity drops to synchronizing speed, and realizes the modulation that electromagnetic wave is noted to electronics, so that electronics note surrenders DC energy amplifies high frequency
, its performance quality directly determines bandwidth of operation, output and efficiency of travelling-wave tube etc..
Logarithmic spiral slow wave line is a kind of slow wave line with very low operation voltage, its running voltage within hectovolt,
The demand of power supply is greatly reduced.The applicant is just special to Application No. 201210409251.6 invention on October 24th, 2012
Sharp entitled " a kind of radial direction logarithmic spiral micro-stripe slow wave line " carried out application, and it is a kind of knot paracycle radially
Structure, using the work of plane sector electron beam, including fan-shaped metal shielding, fan-shaped medium base plate and angle radial direction logarithmic spiral
Metal tape, angle radial direction logarithmic spiral metal tape is a part of arc of θ by intercepting angle on single radial direction logarithmic spiral microstrip line
Line, and replace, by intercepting the adjacent head and the tail of camber line, the metal tape composition connecting.Using radial direction logarithmic spiral micro-strip slow wave of the present invention
The travelling-wave tube of line, its running voltage is far below conventional low-voltage helix TWT, then has with respect to coupled cavity class travelling-wave tube
There is bigger advantage.
Using the radial direction bundle travelling-wave tube of radial direction logarithmic spiral micro-stripe slow wave line, travelling-wave tube running voltage same is being greatly reduced
When there is higher output power, and small volume, low cost of manufacture.And the electronics note of existing electron gun transmitting is cross section mostly
Cylindrical electronics note, rectangular strip shape electronics note, oval electronics note or edge are the various shapes such as oval ribbon-like electron note
The electronics note of shape structure, thus employ plane sector electricity with foregoing invention patent application during these existing electron gun work
Beamlet work radial direction logarithmic spiral micro-stripe slow wave line between can not synchronize well, thus will not produce output or
Person's output very little, thus lead to the inefficiency of travelling-wave tube.
In order to overcome existing electron gun with employ plane sector electron beam work radial direction logarithmic spiral micro-stripe slow wave line
Between the technical problem that can not synchronize well, the present invention is directed to the radial direction logarithmic spiral micro-strip of foregoing invention patent application
Slow wave line, and provide a kind of radially electronics note electron gun being exclusively used in radial direction logarithmic spiral micro-stripe slow wave line.
Content of the invention
The goal of the invention of the present invention is：For prior art exist existing electron gun with employ plane sector electronics
The technical problem that can not synchronize well between the radial direction logarithmic spiral micro-stripe slow wave line of bundle work, provides one kind to be applied to
The radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line, makes this electron gun and employs plane sector electron beam
Can synchronize well between the radial direction logarithmic spiral micro-stripe slow wave line of work.
To achieve these goals, the technical solution used in the present invention is：
A kind of radially electronics note electron gun being applied to radial direction logarithmic spiral micro-stripe slow wave line, including gun housing, described
It is provided with cathode assembly, control pole and anode, the cathode taps of described cathode assembly are placed in the radial direction in the hole of control pole in gun housing；Cloudy
The axial width h of cartridgec=（0.2~2）Mm, the axial width h of the radial hole of control polek=hc+（0.1~1）Mm, the opening of control pole
The axial width h of mouth stepk1=（1~2）Mm, the axial width h of the axially open of anodea=（0.1~4）Mm, cathode taps are near sun
The end face of pole side and control pole radial hole are near the end of anode side apart from dck=（0~1.5）Mm, cathode taps and anode
Apart from dca=（0.5~1.5）Mm, the emission of cathode face of cathode taps is the doubly curved surface of emission, the song in the emission of cathode face of cathode taps
Rate radius rc=（0.3~10）Mm, the raised inclination angle ψ in the slope of control pole radial hole interior angle both sides to the left and right1=(25 ~ 75) °, anode
Radial hole inclination angle ψ2=（0~45）°；The radial direction radius R of anode end facea=（14~17）Mm, the radial direction radius R of negative electrode end facec=
(12 ~ 16) mm, the radial direction radius R of control pole end facek1=（12.5~16.5）Mm, the radial direction radius of control pole opening step terminations
Rk2=Rk1-（0.1~1）Mm, the angular angle, θ of negative electrode end surfacec=（1~180）°, the angular angle, θ of the radial hole of control polek1=θ
c+（0.4~8）°, the angular angle, θ of control pole end facek2=θk1+ (2 ~ 4) °, the angular angle, θ of anode end facea=θc+（2~6）°.
As the preferred version of the present invention, porcelain cylinder, gun housing under gun housing bottom end cover that described gun housing includes being sequentially connected, gun housing
Porcelain cylinder and gun housing upper end cover in middle porcelain cylinder, gun housing, described anode is arranged on the end face of gun housing upper end cover, described cathode assembly and
Control pole is installed in porcelain cylinder internal cavities in gun housing.
As the preferred version of the present invention, porcelain cylinder and gun housing in described gun housing are provided between porcelain cylinder control pole and support
Piece, described control pole supporting pieces is tightly welded with porcelain collet chuck in gun housing by porcelain cylinder in gun housing, and described control pole is assemblied in control pole and props up
Hold in the control pole support groove of piece.
As the preferred version of the present invention, described cathode assembly includes cathode taps and cathode support cylinder, described cathode taps dress
Fit in the cathode support groove of cathode support cylinder one end, in the cavity of the described cathode support cylinder other end, be provided with heated filament and filling
Heated filament implant between cathode support cylinder inwall and heated filament.
As the preferred version of the present invention, also include heated filament porcelain tube, described heated filament one end is located in heated filament implant,
The described heated filament other end passes heated filament implant and is sheathed in heated filament porcelain tube.
As the preferred version of the present invention, outside described cathode support cylinder, it is arranged with cathode anchor, described cathode support cylinder leads to
Cross cathode anchor to be fixedly installed in gun housing.
As the preferred version of the present invention, it is provided with cathode assembly in porcelain cylinder and gun housing under described gun housing between porcelain cylinder and supports
Piece, described cathode assembly supporting pieces is tightly welded with porcelain collet chuck in gun housing by porcelain cylinder under gun housing, and described cathode anchor is set in negative electrode
In assembly supporting pieces and it is fixedly installed in gun housing by cathode assembly supporting pieces.
As the preferred version of the present invention, also include heat shielding assembly, described heat shielding assembly includes outer heat shielding cylinder and is sheathed on
Internal heat shield cylinder in outer heat shielding cylinder, described internal heat shield cylinder one end is connected with internal heat shield cylinder base, described outer heat shielding cylinder one end and exterior-heat
Screen cylinder base connects, and described outer heat shielding cylinder base is located between cathode support cylinder and cathode anchor and fixing.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows：
1st, in the present invention, electron gun can be produced and radially be transported using the cathode taps of above-mentioned ad hoc structure, control pole and anode
Dynamic electric current is（30~5000）MA, axially note waist are（0.05~3.5）Mm, radial direction range are（0.8~3）Mm, angular subtended angle are（1
~100）° fan-shaped lamellar dissipate electronics note, and this fan-shaped lamellar dissipate electronics note can preferably with background technology in radial direction
Logarithmic spiral micro-stripe slow wave line is mated, thus improving the functioning efficiency of electronics in electron gun, and employs being greatly reduced
While the electron gun of said structure, the travelling-wave tube running voltage of slow wave line, there is higher output power, make travelling-wave tube small volume,
Low cost of manufacture.
2nd, in the present invention, in porcelain cylinder in porcelain cylinder under gun housing bottom end cover that gun housing includes being sequentially connected, gun housing, gun housing, gun housing
Porcelain cylinder and gun housing upper end cover, several persons are welded to connect by ceramicto-metal seal technique, and negative electrode is placed in one, and play support positioning cloudy
Pole assembly, the effect of control pole, meanwhile, the effect of gun housing porcelain cylinder is for providing insulation measures between each electrode of electron gun.Gun housing
The solderable anode of upper and lower end cap and exhaust pipe assembly etc., are assembled with travelling-wave tube miscellaneous part.
3rd, in the present invention, control pole is assemblied in the control pole support groove of control pole supporting pieces, by supporting to control pole
The measures such as piece secondary operations, it is ensured that the concentricity of control pole assembling and control pole and the interelectode dimensions of negative electrode, make actual sending out
The electric current penetrating generation is closer to the calculated results.Make installation, the assembling of control pole more stable simultaneously, and difficult for drop-off or fall
Fall, make electron gun have the beneficial effects such as reliability height, anti-vibration.
4th, in the present invention, cathode taps are assemblied in the cathode support groove of cathode support cylinder one end, and cathode support cylinder is another
Setting heated filament and heated filament implant in the cavity of side, wherein heated filament implant play conduction of heat and the effect of insulation, can make
The heat of cathode assembly is more evenly distributed, and ensures that heated filament will not make between heated filament because of factors such as heat effects in use simultaneously
Come in contact, cause the situation of heated filament short circuit；Heated filament outside heated filament implant is set in heated filament porcelain tube, by this heated filament
Porcelain tube can ensure that electron gun will not occur the short circuit between two heated filaments in use it is ensured that the use of electron gun can
By property；Cathode support cylinder is assemblied on cathode anchor by inside and outside heat shielding cartridge module, and inside and outside heat shielding cylinder adopts high-melting-point, low grade fever
Prepared by conductivity material, can effectively reduce the thermal loss that heat radiation and conduction of heat cause；The assembling of inside and outside heat shielding cartridge module is adopted
With the mode of slidable fit, the fitted position position of cathode assembly can be adjusted according to the actual size of gun housing, reduce assembly difficulty,
And then guarantee assembly precision.
5th, in the present invention, in electron gun, it is additionally provided with heat shielding assembly, heat shielding assembly includes outer heat shielding cylinder and is sheathed on exterior-heat
Internal heat shield cylinder in screen cylinder, internal heat shield cylinder one end is connected with internal heat shield cylinder base, and outer heat shielding cylinder one end is connected with outer heat shielding cylinder base, interior
The setting of outer two-layer heat shielding cylinder can effectively reduce the dissipation of heated filament heat in electron gun work process, improve heated filament efficiency, enter
And effectively maintain negative electrode operating temperature, work with making cathode stabilization.
Brief description
Fig. 1 is the assembling schematic diagram of the present invention；
Fig. 2 is the axial, cross-sectional view of the optical system that Anodic of the present invention, control pole and cathode taps form；
Fig. 3 is the angular sectional view of the optical system that Anodic of the present invention, control pole and cathode taps form；
Fig. 4 is the front view of control pole in the present invention；
Fig. 5 is the left view of control pole in the present invention；
Fig. 6 is the top view of control pole in the present invention；
Fig. 7 is that the emulation experiment axial cross section electronics of the embodiment of the present invention one electron gun notes trajectory diagram；
Fig. 8 is the emulation experiment angular section electronics note trajectory diagram of the embodiment of the present invention one electron gun；
Fig. 9 is that the emulation experiment axial cross section electronics of the embodiment of the present invention two electron gun notes trajectory diagram；
Figure 10 is the emulation experiment angular section electronics note trajectory diagram of the embodiment of the present invention two electron gun；
Figure 11 is that the emulation experiment axial cross section electronics of the embodiment of the present invention three electron gun notes trajectory diagram；
Figure 12 is the emulation experiment angular section electronics note trajectory diagram of the embodiment of the present invention three electron gun；
Figure 13 is that the emulation experiment axial cross section electronics of the embodiment of the present invention four electron gun notes trajectory diagram；
Figure 14 is the emulation experiment angular section electronics note trajectory diagram of the embodiment of the present invention four electron gun；
Wherein, reference is：Porcelain cylinder, 3 cathode assembly supporting pieces, 4 gun housing under 1 gun housing bottom end cover, 2 gun housing
Porcelain cylinder, 7 gun housing upper end covers, 8 anodes, 9 control poles, 10 negative electrodes in middle porcelain cylinder, 5 control pole supporting pieces, 6 gun housing
Head, 11 cathode support cylinders, 12 heated filaments, 13 heated filament implants, 14 outer heat shielding cylinder bases, 15 cathode anchors, outside 16
Heat shielding cylinder, 17 internal heat shield cylinders, 18 internal heat shield cylinder bases, 19 heated filament porcelain tubes, 91 slopes are raised.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
Embodiment 1
A kind of radially electronics note electron gun, this electron gun and background being applied to radial direction logarithmic spiral micro-stripe slow wave line
Application No. 201210409251.6, a kind of entitled " radial direction logarithmic spiral micro-stripe slow wave line " application for a patent for invention in technology
In slow wave line support the use.This electron gun includes gun housing, is provided with cathode assembly, control pole 9 and anode 8 in gun housing.Anode 8
For disc-shaped structure, and the disk centre position of anode 8 offers radial hole, and the angle of the radial hole of anode 8 is by cathode taps 10
Radial direction subtended angle determine.Control pole 9 is also disc-shaped structure, and the disk centre position of control pole 9 offers radial hole, in the moon
When pole assembly is assembled with control pole 9, the cathode taps 10 of cathode assembly are placed in the radial direction in the hole of control pole 9；The radial hole of control pole 9
Inside descend both sides and the angular left and right sides to be provided with slope projection 91 vertically, can be played to sector by these slope projections 91
Radial direction electronics note is compressed axially the effect with angular shaping.In axial cross section, the axial width h of cathode taps 10c=0.6mm, controls
The axial width h of the radial hole of pole 9k=hc+ 0.1=0.7mm, the axial width h of the opening step of control pole 9k1=1.5mm, anode
The axial width h of 8 axially opena=0.62mm, the end face near anode 8 side for the cathode taps 10 is close with control pole 9 radial hole
The end of anode 8 side apart from dck=0.05mm, cathode taps 10 and anode 8 are apart from dca=0.45mm, the negative electrode of cathode taps 10
The surface of emission is the doubly curved surface of emission, radius of curvature r in the emission of cathode face of cathode taps 10c=1.19mm, control pole 9 radial hole
The inclination angle ψ of the interior angle slope projection 91 of both sides to the left and right1=60 °, the slope projection 91 of the upper and lower both sides of control pole 9 radial direction in the hole
Inclination angle ψ3=45 °, the inclination angle ψ of the radial hole of anode 82=4°；In angular section, the radial direction radius R of anode 8 end facea=15.35mm,
The radial direction radius R of negative electrode end facec=14.5mm, the radial direction radius R of control pole 9 end facek1=14.9mm, control pole 9 opening step is eventually
The radial direction radius R at endk2=Rk1- 0.1=14.8mm, the angular angle, θ of cathode taps 10 end facec=8 °, the angle of the radial hole of control pole 9
To angle, θk1C+4 ° of=θ=12 °, the angular angle, θ of control pole 9 end facek2=θk1+ 3 °=15 °, the angular angle, θ of anode 8 end facea=θc
+14°=22°.
Using the present embodiment Anodic 8, control pole 9 and cathode taps 10 size when, emission of cathode model adopt space electricity
Lotus limits transmitting, and anode voltage is set to 0V, and negative electrode is set to -1700V with controlling pole tension, and electron gun can produce
The fan-shaped lamellar that 148.5mA, axially note waist are about 0.45mm, radial direction range is about 0.9mm, angular subtended angle is 8 ° dissipates electronics
Note.
When emulation experiment is carried out using CST Particle Studio software, its axial cross section electronics note trajectory diagram, angular
Section electronics note trajectory diagram is as shown in Figure 7,8.
Embodiment 2
On the basis of embodiment one, the axial width h of cathode taps 10c=0.6 mm, the axial direction of the radial hole of control pole 9
Width hk=1.6mm, the axial width h of the opening step of control pole 9k1=0.7mm, the axial width h of the axially open of anode 8a=
0.46mm, the end face near anode 8 side for the cathode taps 10 and control pole 9 radial hole are near the end of anode 8 side apart from dck=
0.05mm, cathode taps 10 and anode 8 are apart from dca=0.7mm, the emission of cathode face of cathode taps 10 is the face of cylinder type surface of emission, cloudy
Radius of curvature r in the emission of cathode face of cartridge 10c→ ∞, the control pole 9 radial hole interior angle slope projection 91 of both sides to the left and right
Inclination angle ψ1=60 °, the inclination angle ψ of the slope projection 91 of the upper and lower both sides of control pole 9 radial direction in the hole3=45 °, the inclination angle of the radial hole of anode 8
ψ2=4°；In angular section, the radial direction radius R of anode 8 end facea=15.6mm, the radial direction radius R of negative electrode end facec=14.5mm, controls
The radial direction radius R of pole 9 end facek1=15.2mm, the radial direction radius R of control pole 9 opening step terminationsk2=15.1mm, cathode taps 10 end
The angular angle, θ in facec=8 °, the angular angle, θ of the radial hole of control pole 9k1=9 °, the angular angle, θ of control pole 9 end facek2=12 °,
The angular angle, θ of anode 8 end facea=11°.
Using the present embodiment Anodic 8, control pole 9 and cathode taps 10 size when, emission of cathode model adopt space electricity
Lotus limits transmitting, and anode voltage is set to 0V, and negative electrode is set to -1800V with controlling pole tension, electron gun can produce 84.9mA,
The fan-shaped lamellar that axially note waist is about 0.37mm, radial direction range is about 1.5mm, angular subtended angle is 8 ° dissipates electronics note.
When emulation experiment is carried out using CST Particle Studio software, its axial cross section electronics note trajectory diagram, angular
Section electronics note trajectory diagram is as shown in Fig. 9,10.
Embodiment 3
On the basis of embodiment one, the axial width h of cathode taps 10c=0.6mm, the axially width of the radial hole of control pole 9
Degree hk=0.6mm, the axial width h of the opening step of control pole 9k1=0.7mm, the axial width h of the axially open of anode 8a=
0.58mm, the end face near anode 8 side for the cathode taps 10 and control pole 9 radial hole are near the end of anode 8 side apart from dck=
0.05mm, cathode taps 10 and anode 8 are apart from dca=0.45mm, the emission of cathode face of cathode taps 10 is the doubly curved surface of emission, cloudy
Radius of curvature r in the emission of cathode face of cartridge 10c=1.19mm, the slope projection 91 of control pole 9 radial hole interior angle both sides to the left and right
Inclination angle ψ1=60 °, the inclination angle ψ of the slope projection 91 of the upper and lower both sides of control pole 9 radial direction in the hole3=45 °, the inclining of the radial hole of anode 8
Angle ψ2=3°；In angular section, the radial direction radius R of anode 8 end facea=15.35mm, the radial direction radius R of negative electrode end facec=14.5mm,
The radial direction radius R of control pole 9 end facek1=14.9mm, the radial direction radius R of control pole 9 opening step terminationsk2=14.8mm, cathode taps
The angular angle, θ of 10 end facesc=160 °, the angular angle, θ of the radial hole of control pole 9k1=164 °, the angular angle of control pole 9 end face
Degree θk2=166 °, the angular angle, θ of anode 8 end facea=182°.
Using the present embodiment Anodic 8, control pole 9 and cathode taps 10 size when, emission of cathode model adopt space electricity
Lotus limits transmitting, and anode voltage is set to 0V, and negative electrode is set to -1700V with controlling pole tension, electron gun can produce 2690mA,
The fan-shaped lamellar that axially note waist is about 0.39mm, radial direction range is about 1.36mm, angular subtended angle is 160 ° dissipates electronics note.
When emulation experiment is carried out using CST Particle Studio software, its axial cross section electronics note trajectory diagram, angular
Section electronics note trajectory diagram is as shown in Figure 11,12.
Embodiment 4
On the basis of embodiment one, the axial width h of cathode taps 10c=0.54mm, the axial direction of the radial hole of control pole 9
Width hk=0.56mm, the axial width h of the opening step of control pole 9k1=0.74mm, the axial width of the axially open of anode 8
haThe distance of=0.5mm, the end face near anode 8 side for the cathode taps 10 and the end near anode 8 side for control pole 9 radial hole
dck=0.08mm, cathode taps 10 and anode 8 are apart from dca=0.78mm, the emission of cathode face of cathode taps 10 is doubly curved transmitting
Face, radius of curvature r in the emission of cathode face of cathode taps 10c=0.66mm, the slope of control pole 9 radial hole interior angle both sides to the left and right
Raised 91 inclination angle ψ1=60 °, the inclination angle ψ of the slope projection 91 of the upper and lower both sides of control pole 9 radial direction in the hole3=90 °, the radial direction of anode 8
The inclination angle ψ in hole2=0°；In angular section, the radial direction radius R of anode 8 end facea=14.78mm, the radial direction radius R of negative electrode end facec=
14.4mm, the radial direction radius R of control pole 9 end facek1=14.98mm, the radial direction radius R of control pole 9 opening step terminationsk2=Rk1-0=
14.98mm, the angular angle, θ of cathode taps 10 end facec=4 °, the angular angle, θ of the radial hole of control pole 9k1=12 °, control pole 9 end
The angular angle, θ in facek2=14 °, the angular angle, θ of anode 8 end facea=12°.
Using the present embodiment Anodic 8, control pole 9 and cathode taps 10 size when, emission of cathode model adopt space electricity
Lotus limits transmitting, and anode voltage is set to 0V, and negative electrode is set to -1500V with controlling pole tension, and electron gun can produce
167.1mA, axially note waist are about 0.4mm, radial direction range is about 0.5mm, the fan-shaped lamellar of about 6 ° of angular subtended angle dissipates electronics
Note.
Note the sectional view of track from electronics and can be seen that due to there is no ψ3Fan-shaped lamellar is dissipated with electronics note angular two
Row constraint is entered in side, and in the presence of electronics note self space charge force, its angle is more than the angular angle, θ of cathode taps 10 end facec=
4 °, this is not the result that we want.
In addition, electron injection journey is too little, its effect is that electronics note begins to dissipate before entering passage, and so, electronics is noted
To be unable in passage have effect spread, therefore, this group data would be unavailable for producing.
When emulation experiment is carried out using CST Particle Studio software, its axial cross section electronics note trajectory diagram, angular
Section electronics note trajectory diagram is as shown in Figure 13,14.
Embodiment 5
On the basis of embodiment one, embodiment two or embodiment three, this gun housing includes the gun housing bottom end cover setting gradually
1st, porcelain cylinder 2 under gun housing, porcelain cylinder 4 in gun housing, porcelain cylinder 6 and gun housing upper end cover 7 in gun housing, porcelain cylinder 2, rifle under gun housing bottom end cover 1, gun housing
In porcelain cylinder 4 in shell, gun housing, porcelain cylinder 6 and gun housing upper end cover 7 are welded to connect formation hollow structure by ceramicto-metal seal technique.Sun
Pole 8 is arranged on the end face of gun housing upper surface, is wherein provided with draw-in groove on the end face of gun housing upper surface, and this draw-in groove can be annular
Draw-in groove, the end face of anode 8 is provided with fixture block or the snap ring of corresponding gun housing upper surface draw-in groove, and draw-in groove is connected with fixture block or snap ring,
Anode 8 is made to be fixedly mounted on gun housing upper surface.In the internal cavities of porcelain cylinder 6 on cathode assembly and control pole 9 installation and gun housing.
Preferably, it is provided with control pole supporting pieces 5 between porcelain cylinder 6 in porcelain cylinder 4 and gun housing in gun housing, this control pole is supported
The both ends of the surface of piece 5 are clamped and are welded and fixed by porcelain cylinder 6 in porcelain cylinder 4 in gun housing, gun housing respectively.Control pole supporting pieces 5 center
Offer control pole 9 support groove for assembling control pole 9, the control pole 9 that control pole 9 is assemblied in control pole supporting pieces 5 is supported
In groove and fixing.
Embodiment 6
On the basis of embodiment one, embodiment two, embodiment three or embodiment five, this cathode assembly includes cathode taps
10th, cathode support cylinder 11, heated filament 12 and heated filament implant 13.Wherein, cathode taps 10 are assemblied in the moon of cathode support cylinder 11 one end
In the support groove of pole, and this cathode support groove is opened in the side near anode 8 on cathode support cylinder 11.Cathode support cylinder 11 is another
The end face at end caves inward and is provided with heated filament 12 and heated filament implant 13 in formation cavity, and the cavity of cathode support cylinder 11, should
Heated filament 12 one end spiral is arranged in the cavity of cathode support cylinder 11, and heated filament 12 other end passes cavity with external devices even
Connect, heated filament implant 13 is filled between cathode support cylinder 11 and heated filament 12.
Preferably, also include heated filament porcelain tube 19, passing the heated filament 12 of cathode support cylinder 11 cavity, to be sheathed on heated filament exhausted
In edge porcelain tube 19.
Preferably, cathode support cylinder 11 is outer is also arranged with cathode anchor 15, and it is solid that cathode support cylinder 11 passes through cathode anchor 15
Dingan County is loaded in gun housing.
Preferably, it is additionally provided with cathode assembly supporting pieces 3 between porcelain cylinder 4 in porcelain cylinder 2 and gun housing under gun housing, this cathode sets
The both ends of the surface of part supporting pieces 3 are clamped and are welded and fixed by porcelain cylinder 2 under porcelain cylinder 4 in gun housing, gun housing respectively.Cathode assembly supporting pieces 3
Center offers the support groove for assembling cathode anchor 15, and cathode anchor 15 is assemblied in propping up of cathode assembly supporting pieces 3
Hold in groove and fixing.
Embodiment 7
On the basis of embodiment one, embodiment two, embodiment three, embodiment five or embodiment six, the gun housing of electron gun
Inside it is additionally provided with heat shielding assembly, this heat shielding assembly includes outer heat shielding cylinder 16 and internal heat shield cylinder 17, and this internal heat shield cylinder 17 is sheathed on
In outer heat shielding cylinder 16.Internal heat shield cylinder 17 one end is connected with internal heat shield cylinder base 18, and outer heat shielding cylinder 16 one end is with outer heat shielding cylinder base 14 even
Connect, and internal heat shield cylinder base 18 and outer heat shielding cylinder base 14 are located at the both sides of heat shielding assembly respectively.Outer heat shielding cylinder base 14 is located at cathode branch
Hold between cylinder 11 and cathode anchor 15, and cathode support cylinder 11 and outer heat shielding cylinder base 14, outer heat shielding cylinder base 14 and cathode anchor 15
It is fixedly connected with.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of radially electronics note electron gun being applied to radial direction logarithmic spiral micro-stripe slow wave line, including gun housing, described rifle
It is provided with cathode assembly, control pole in shell（9）And anode（8）, the cathode taps of described cathode assembly（10）It is placed in control pole（9）'s
Radial direction in the hole；It is characterized in that, cathode taps（10）Axial width hc=（0.2~2）Mm, control pole（9）Radial hole axial direction
Width hk=hc+（0.1~1）Mm, control pole（9）Opening step axial width hk1=（1~2）Mm, anode（8）Axially open
Axial width ha=（0.1~4）Mm, cathode taps（10）Near anode（8）The end face of side and control pole（9）Radial hole is near sun
Pole（8）The end of side apart from dck=（0~1.5）Mm, cathode taps（10）With anode（8）Apart from dca=（0.5~1.5）Mm is cloudy
Cartridge（10）Emission of cathode face be the doubly curved surface of emission, cathode taps（10）Emission of cathode face radius of curvature rc=（0.3~
10）Mm, control pole（9）The slope of radial hole interior angle both sides to the left and right is raised（91）Inclination angle ψ1=(25 ~ 75) °, anode（8）'s
The inclination angle ψ of radial hole2=（0~45）°；Anode（8）The radial direction radius R of end facea=（14~17）Mm, the radial direction radius R of negative electrode end facec=
(12 ~ 16) mm, control pole（9）The radial direction radius R of end facek1=（12.5~16.5）Mm, control pole（9）The radial direction of opening step terminations
Radius Rk2=Rk1-（0.1~1）Mm, cathode taps（10）The angular angle, θ of end facec=（1~180）°, control pole（9）Radial hole angle
To angle, θk1=θc+（0.4~8）°, control pole（9）The angular angle, θ of end facek2=θk1+ (2 ~ 4) °, anode（8）The angular angle of end face
Degree θa=θc+（2~6）°.
2. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 1, its
It is characterised by, described gun housing includes the gun housing bottom end cover being sequentially connected（1）, porcelain cylinder under gun housing（2）, porcelain cylinder in gun housing（4）, gun housing
Upper porcelain cylinder（6）With gun housing upper end cover（7）, described anode（8）It is arranged on gun housing upper end cover（7）End face on, described cathode assembly
And control pole（9）It is installed on porcelain cylinder in gun housing（6）In internal cavities.
3. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 2, its
It is characterised by, porcelain cylinder in described gun housing（4）With porcelain cylinder in gun housing（6）Between be provided with control pole supporting pieces（5）, described control pole
Supporting pieces（5）By porcelain cylinder in gun housing（4）With porcelain cylinder in gun housing（6）Clamping welding, described control pole（9）It is assemblied in control pole to support
Piece（5）Control pole（9）In support groove.
4. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 1, its
It is characterised by, described cathode assembly includes cathode taps（10）With cathode support cylinder（11）, described cathode taps（10）It is assemblied in negative electrode
Support cylinder（11）In the cathode support groove of one end, described cathode support cylinder（11）It is provided with heated filament in the cavity of the other end（12）With
It is filled in cathode support cylinder（11）Inwall and heated filament（12）Between heated filament implant（13）.
5. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 4, its
It is characterised by, also include heated filament porcelain tube（19）, described heated filament（12）One end is located at heated filament implant（13）Interior, described heated filament
（12）The other end passes heated filament implant（13）And it is sheathed on heated filament porcelain tube（19）Interior.
6. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 4, its
It is characterised by, described cathode support cylinder（11）It is arranged with outward cathode anchor（15）, described cathode support cylinder（11）By cathode branch
Frame（15）It is fixedly installed in gun housing.
7. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 6, its
It is characterised by, porcelain cylinder under the gun housing of described gun housing（2）With porcelain cylinder in gun housing（4）Between be provided with cathode assembly supporting pieces（3）, institute
State cathode assembly supporting pieces（3）By porcelain cylinder under gun housing（2）With porcelain cylinder in gun housing（4）Clamping welding, described cathode anchor（15）Set
It is located at cathode assembly supporting pieces（3）Interior and pass through cathode assembly supporting pieces（3）It is fixedly installed in gun housing.
8. it is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line as claimed in claim 1, its
It is characterised by, also include heat shielding assembly, described heat shielding assembly includes outer heat shielding cylinder（16）Be sheathed on outer heat shielding cylinder（16）Interior
Internal heat shield cylinder（17）, described internal heat shield cylinder（17）One end and internal heat shield cylinder base（18）Connect, described outer heat shielding cylinder（16）One end with
Outer heat shielding cylinder base（14）Connect, described outer heat shielding cylinder base（14）Positioned at cathode support cylinder（11）With cathode anchor（15）Between and solid
Fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271145.XA CN104900467B (en) | 2015-05-26 | 2015-05-26 | It is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271145.XA CN104900467B (en) | 2015-05-26 | 2015-05-26 | It is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104900467A CN104900467A (en) | 2015-09-09 |
| CN104900467B true CN104900467B (en) | 2017-03-08 |
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| CN201510271145.XA Expired - Fee Related CN104900467B (en) | 2015-05-26 | 2015-05-26 | It is applied to the radially electronics note electron gun of radial direction logarithmic spiral micro-stripe slow wave line |
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| CN (1) | CN104900467B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10573481B1 (en) * | 2018-11-28 | 2020-02-25 | Nuflare Technology, Inc. | Electron guns for electron beam tools |
| CN112542369A (en) * | 2020-12-09 | 2021-03-23 | 成都国光电气股份有限公司 | Slotted heat shield structure for quick start cathode and assembly method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960016260B1 (en) * | 1993-09-04 | 1996-12-07 | 엘지전자 주식회사 | In-line type crt |
| JP2002260522A (en) * | 2000-12-26 | 2002-09-13 | Sony Corp | Cathode body structure, its manufacturing method, electron gun and cathode-ray tube |
| CN102903587B (en) * | 2012-10-24 | 2015-07-15 | 电子科技大学 | Radial logarithmic spiral micro-stripe slow wave line |
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| CN104900467A (en) | 2015-09-09 |
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