CN207441650U - Multifocal X-ray tube and housing - Google Patents
Multifocal X-ray tube and housing Download PDFInfo
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- CN207441650U CN207441650U CN201720791143.8U CN201720791143U CN207441650U CN 207441650 U CN207441650 U CN 207441650U CN 201720791143 U CN201720791143 U CN 201720791143U CN 207441650 U CN207441650 U CN 207441650U
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Abstract
The utility model provides a kind of multifocal X-ray tube and housing.Multifocal X-ray tube includes：Housing；Cathode, the cathode are located in housing and are configured to generate electronic beam current respectively from multiple positions；And anode, the anode are located in housing and are configured to be aligned to generate Multi-Beam X-Ray from multiple target spots with cathode.Windows are equipped on housing, the Windows are formed as elongated slit and Windows are arranged to be aligned with multiple target spots on anode.Forms are provided on the Windows, the forms are arranged to be sealed the housing and the X-ray is allowed to draw the housing by the forms.An elongated Windows are arranged at the position alignd by multiple target spots of the anode with setting inside housings on the housing of multifocal X-ray tube, the Multi-Beam X-Ray projected from multiple target spots of anode hull outside can be drawn out to, while the high vacuum state inside ray tube can be realized.
Description
Technical field
The embodiment of the utility model is related to a kind of X-ray tube, more particularly, it relates to a kind of multifocal X-ray tube and application
In the housing of this multifocal X-ray tube.
Background technology
X-ray has a wide range of applications in fields such as industrial nondestructive testing, safety inspection, medical diagnosis and treatments.Generate X
The device of ray is known as x-ray source, usually by structures such as the auxiliary devices such as X-ray tube, power supply and control system, cooling and shielding
Into.X-ray tube includes three cathode, anode and housing major parts.Cathode generates electronic beam current, and electronic beam current is by cathode and sun
High voltage electric field between pole accelerates, and hits anode target spot, so as to generate X-ray.
X-ray needs to draw from some position on housing, and the position usually is known as Windows.X-ray has very
Strong penetration capacity can almost penetrate the various substances of nature, but its penetration capacity is related except energy with itself
Outside, also related to the mass thickness of its penetrating material, i.e. the smaller object of mass thickness is smaller to the stop of X-ray.In order to
X-ray is preferably drawn, usually farthest reduces the thickness of Windows, but X-ray tube is the height of a sealing
Vacuum cavity will bear at least one atmospheric pressure at Windows, so Windows to be usually designed to the circle of very little
It is or square.
A kind of multiple focal spot x-ray source is had also developed, multifocal radiographic source includes housing, the cathode and sun of setting in the housing
Pole.Cathode is configured to generate electronic beam current respectively from multiple positions；Anode is configured to be aligned with cathode with from multiple target spots
Generate Multi-Beam X-Ray.
Utility model content
The embodiment technical problem to be solved of the utility model is, provides a kind of housing and including this housing
Multifocal X-ray tube can draw housing by Multi-Beam X-Ray is generated by multiple target spots on multiple cathodes, cathode.
The embodiment of one side according to the present utility model provides a kind of multifocal X-ray tube, including housing, cathode
And anode.Cathode is located in housing and is configured to generate electronic beam current respectively from multiple positions.Anode is located in housing simultaneously
And it is configured to be aligned to generate Multi-Beam X-Ray from multiple target spots with cathode.Windows, the extraction window are equipped on housing
The degree of lip-rounding is arranged to be aligned with multiple target spots on anode as elongated slit and Windows.It is set on the Windows
Forms are equipped with, the forms are arranged to be sealed the housing and the X-ray is allowed to pass through described in forms extraction
Housing.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the section of Windows in the direction of the width
At least a portion have from inside to outside gradually widened truncated cone.
The fan of a kind of multifocal X-ray tube of embodiment according to the present utility model, the truncated cone and beam of x-rays
Tee section is substantially consistent.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the thickness of the forms are less than the housing
Thickness.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the thickness of the forms and the thickness of housing
The ratio between be less than 1：5, it is preferable that less than 1：10.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the thickness of the forms are less than 1mm, preferably
Ground is 0.02mm~0.5mm.
A kind of multifocal X-ray tube of embodiment according to the present utility model, length and the width ratio of the Windows
More than 5, it is preferable that more than 10.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the forms are arranged on the interior of Windows
Between side, outside or inner side and outer side.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the forms and the housing are by different
Material is made.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the forms are using welding, sintering or crimping
Mode be fixed to housing.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the forms are fixed by connection component
To housing, the connection component includes：The pressing plate of annular is configured to the periphery pressing of the forms on the housing；
And fastener, in the periphery of the forms through the pressing plate, the pressing plate is fixed on the housing.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the connection component, which further includes, is arranged on institute
State the sealing ring between the periphery of housing and the forms.
A kind of multifocal X-ray tube of embodiment according to the present utility model is formed in the Windows towards shell
Stage portion outside body, the periphery of the forms are fixed in the stage portion.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the housing is by metal, ceramics or glass
It is made, the forms are made of a kind of metal foil in the group that titanium foil, copper foil, aluminium foil, beryllium paper tinsel, stainless steel foil form,
Either it is made of potsherd, sheet glass or quartz plate.
A kind of multifocal X-ray tube of embodiment according to the present utility model, the forms and the housing are by identical
Material is made into integration.
According to the embodiment of the utility model another aspect, a kind of housing for multifocal X-ray tube is provided, in housing
Windows are equipped with, the Windows are formed as elongated slit and are arranged to be aligned with multiple target spots on anode,
And forms are provided on the Windows, the forms are arranged to be sealed the housing and allow the housing
Internal X-ray draws the housing by the forms.
The housing of above-mentioned working Examples according to the present utility model and multifocal X-ray tube, by multifocal X-ray
An elongated Windows are arranged on the housing of pipe, Windows are aligned with multiple target spots of anode, can will be from anode
The Multi-Beam X-Ray that multiple target spots project is drawn out to hull outside, while can realize the high vacuum state inside ray tube.
Description of the drawings
The utility model these and/or other aspect and advantage from description of preferred embodiments below in conjunction with the accompanying drawings
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is a kind of stereoscopic schematic diagram of the multifocal X-ray tube of exemplary embodiment according to the present utility model；
Fig. 2 is the operation principle schematic diagram of multifocal X-ray tube transmitting X-ray shown in FIG. 1；
Fig. 3 is the stereoscopic schematic diagram of equipped with Windows a side wall for multifocal X-ray tube shown in FIG. 1；
Fig. 4 is the schematic cross-section in the direction of the width of side wall shown in Fig. 3；
Fig. 5 A-5C are to show that forms are arranged on the schematic cross-section of the different position of housing, and wherein Fig. 5 A show that forms are set
It puts in the inside of housing, Fig. 5 B show that forms are arranged between the inner side and outer side of housing, and Fig. 5 C show that forms are arranged on housing
Outside；
Fig. 6 is a kind of three-dimensional signal of the housing of the multifocal X-ray tube of exemplary embodiment according to the present utility model
Figure；
Fig. 7 is section of the housing at Windows shown in a kind of exemplary embodiment Fig. 6 according to the present utility model
Schematic diagram；
Fig. 8 is the housing shown in another exemplary embodiment Fig. 6 according to the present utility model at Windows
Schematic cross-section；
Fig. 9 is that the solid of the housing of the multifocal X-ray tube of another exemplary embodiment according to the present utility model is shown
It is intended to；And
Figure 10 is the schematic cross-section at Windows of housing shown in Fig. 9.
Reference sign
1：Housing；
2：Cathode；
3：Anode；
4,4’：Windows；
5：Forms；
6：Welding position；
6’：Welding filler metal；
7：Sealing ring；
8：Pressing plate；
9：Fastener；
10：Stage portion；
11：Power interface；
E：Electronic beam current；
X：X-ray；
L：The length of Windows；
W：The width of Windows；
D：The thickness of housing；
d：The thickness of forms.
Specific embodiment
Throughout the specification, similar reference numeral represents similar part.
Below will be by embodiment, and with reference to attached drawing, the technical solutions of the present invention will be further described.
In the description, the same or similar drawing reference numeral indicates the same or similar component.It is following referring to the drawings to the utility model
The explanation of embodiment is intended to explain the utility model general plotting, and is not construed as one to the utility model
Kind limitation.
In addition, in the following detailed description, for ease of explaining, many concrete details are elaborated to provide to present disclosure
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments without these specific details can also
It is carried out.In other cases, well known construction and device diagrammatically embodies to simplify attached drawing.
Conceived according to the utility model of the utility model generally, a kind of multifocal X-ray tube, including：Housing；Cathode,
The cathode is located in housing and is configured to generate electronic beam current respectively from multiple positions；And anode, the anode position
In in housing and being configured to be aligned with cathode to generate Multi-Beam X-Ray from multiple target spots.Windows are equipped on housing,
The Windows are formed as elongated slit and are arranged to be aligned with multiple target spots on anode.On the Windows
Forms are provided with, the forms are arranged to be sealed the housing and the X-ray is allowed to draw institute by the forms
State housing.
Fig. 1 is a kind of stereoscopic schematic diagram of the multifocal X-ray tube of exemplary embodiment according to the present utility model；Fig. 2
It is the operation principle schematic diagram of multifocal X-ray tube transmitting X-ray shown in FIG. 1；Fig. 3 is multifocal X-ray tube shown in FIG. 1
Equipped with Windows a side wall stereoscopic schematic diagram；Fig. 4 is that the section in the direction of the width of side wall shown in Fig. 3 shows
It is intended to.
As shown in Figs 1-4, a kind of multifocal X-ray tube of embodiment according to the present utility model includes：Housing 1, cathode 2
With anode 3.High vacuum is formed in housing 1.Cathode 2 is located in housing 1 and is configured to, and electron beam is drawn in multiple positions respectively
Flow E.Anode 3 is located in housing 1 and is configured to be aligned to generate Multi-Beam X-Ray from multiple target spots with cathode.Specifically,
Accelerated by the electronic beam current that cathode 2 is drawn positioned at the high voltage electric field between cathode and anode and obtain energy, hit anode
On multiple target spots (or focus), so as to generate Multi-Beam X-Ray X.Peripheral control unit passes through external power interface 11 and cathode 2
It is electrically connected with anode 3, to control the operation of cathode 2 and anode 3.
Housing 1 is equipped with Windows 4, the Windows 4 be formed as elongated slit and be arranged to on anode 3
Multiple target spots alignment.That is, the direction of elongate slit extension of Windows 4 and the row of multiple target spots on anode 3
Column direction is identical, i.e., Windows 4 are arranged substantially in parallel with anode 3.In this way, the X-ray generated from target spot can be reached and drawn
Go out window 4.
Forms 5 are provided on Windows 4, the forms 5 are arranged to be sealed housing 1 and X-ray X is allowed to lead to
It crosses forms 5 and draws housing 1.It is appreciated that Windows refer to other positions of the position with respect to housing 1 with relatively much smaller
Thickness, it is but not completely open because X-ray tube needs to form vacuum sealing.In this way, forms 5 and the formation of housing 1 vacuum are close
Seal structure makes cathode 2 and anode 3 be under high vacuum environment, on the one hand allows the electronic beam current E that cathode 2 generates smooth
Reach anode 3, without being lost because of being collided with air molecule；The insulation characterisitic of another aspect vacuum so that anode 3 can
To be in the high-voltage state of opposing cathode 2, without generating breakdown sparking easily.Multiple target positions on anode 3 generate
X-ray X the hull outside of ray tube is drawn out to by the forms 5 being arranged on Windows 4, be imaged for radioscopy
Deng application.
In a kind of exemplary embodiment, multiple target spots are typically arranged in straight line or camber line on anode 3, accordingly
Ground, the Windows for drawing X-ray are also configured as corresponding linear slit or arc line shaped slit.
Fig. 5 A-5C are to show that forms are arranged on the schematic cross-section of the different position of housing, and wherein Fig. 5 A show that forms are set
It puts in the inside of housing, Fig. 5 B show that forms are arranged between the inner side and outer side of housing, and Fig. 5 C show that forms are arranged on housing
Outside.
In one embodiment, as shown in figures 5a-5c, the cutting in width (vertical direction in Fig. 5) of Windows 4
Face at least a portion has from inside to outside gradually widened truncated cone, i.e., Windows 4 shown in FIG. 1 are in the width of case inside
Degree is less than the width W in hull outside.Further, truncated cone is substantially consistent with the sector crosssection of X-ray beam.It is specific and
Speech, from the corresponding target spot on anode 3, spatially divergent shape outwards emits X-ray, cone angle vertex and the anode 3 of Windows 4
Target position overlaps.In this way, be conducive to draw X-ray, while it is stronger strong that housing 1 is kept to have at the position of Windows
Degree.
In one embodiment, as shown in figure 4, the thickness d of forms 5 is less than the thickness D of housing 1 so that X-ray is with larger
Transmissivity pass through forms 5.For example, the ratio between thickness of the thickness of forms 5 and housing 1 is less than 1：5, it is preferable that less than 1：10.
In a kind of exemplary embodiment, forms 5 are disposed at Windows 4, the thickness of forms 5 is very thin, in a few tenths of a mm to milli
In the thickness range of rice magnitude.For example, the thickness of forms 5 is less than 1mm, it is preferable that is 0.02mm~0.5mm.In this way, forms 5
The other positions of housing 1 are much smaller than to the stop of X-ray, so as to draw X-ray to greatest extent.
Usually, the inside of housing 1 is high vacuum state, and outside is air, thus housing need to bear it is at least one big
Housing 1, it is necessary to is designed as having certain thickness D by the strong pressure of air pressure.The volume of usual X-ray tube is bigger, the face of housing 1
Product is also bigger, and the pressure born is also bigger, and the thickness D of housing 1 is bigger.Housing 1 with larger thickness generates anode 3
X-ray has obviously barrier effect, therefore be unfavorable for the extraction of X-ray, so needing to open up window on housing 1
Draw X-ray.The Windows 4 of the utility model embodiment are formed as elongate slit, and area is smaller, and Windows 4 are held in itself
The pressure received is small, and the thickness d of forms 5 can be designed very thin.Window can have a small amount of change under the action of atmospheric pressure
Shape will not still rupture.
In one embodiment, as shown in figure 3, length L and width the W ratio of Windows 4 are more than 5, it is preferable that be more than
10.In one embodiment, the ratio of the length of Windows 4, width and thickness is more than 500:100:1.So so that extraction window
Mouth 4 is elongated narrow slit structure.For example, 4 width of Windows of forms 5 be several millimeters and length can reach hundred millimeters with
On.
Fig. 6 is a kind of three-dimensional signal of the housing of the multifocal X-ray tube of exemplary embodiment according to the present utility model
Figure；Fig. 7 is section signal of the housing at Windows shown in a kind of exemplary embodiment Fig. 6 according to the present utility model
Figure；Fig. 8 is that the section at Windows of the housing shown in another exemplary embodiment Fig. 6 according to the present utility model shows
It is intended to.
As shown in Fig. 5 A-5C, 6-8, forms 5 are arranged between the inside, outside or inner side and outer side of Windows 4.
Forms 5 and housing 1 are made from a variety of materials.For example, housing 1 is made of metal, ceramics or glass, forms 5 are by being selected from titanium
A kind of metal foil in the group that paper tinsel, copper foil, aluminium foil, beryllium paper tinsel, stainless steel foil form is made, and forms 5 are using welding, soldering
Or the mode of crimping is fixed on housing 1 and forms vacuum seal structure.Since the thickness of metal foil is uniform, by metal
Forms made of paper tinsel have very big convenience and cost advantage.
In a kind of alternate embodiment, housing 1 is made of metal, ceramics or glass, and forms 5 are by for example ceramic
The nonmetallic sheeting of piece, sheet glass, quartz plate etc is made, and forms 5 are fixed by the way of welding or sintering
Vacuum seal structure is formed to Windows 4, and with housing 1.
As shown in fig. 7, in a kind of exemplary embodiment, forms 5 are fixed to by extraction on housing using welding manner
The outside of window 4.Windows 4 can be completely covered in the area of forms 5 made of metal foil, and welding position 6 is to surround to draw
Go out window 4 complete one weeks so that it is the one of a complete closure to draw being welded to connect and (merging) between forms 5 and housing 1
Circle, so that draw forms 5 forms vacuum seal structure with housing 1.Welding manner includes, but is not limited to, argon arc welding, electricity
Welding resistance, Laser Welding, soldering, electron beam weldering, friction welding (FW), diffusion welding (DW), explosion weldering etc..
In the embodiment shown in fig. 8, formed in Windows 4 ' towards the stage portion 10 outside housing 1, forms 5
Periphery is fixed in stage portion 10.The part that Windows 4 ' are located at 5 inside of forms has the truncated cone shape outwards gradually increased, draws
Going out the part that window 4 ' is located at 5 outside of forms has rectangular shape.Stage portion 10 in the Windows 4 ' of housing 1 is arranged to enclose
Around the complete circle of Windows 4 '.Welding filler metal 6 ' is placed in stage portion 10, welding filler metal 6 ' is also along 10 cloth of stage portion
It is set to a complete circle.The excircle of forms 5 is less than the excircle of the stage portion 10 of Windows 4 ', and forms 5 are placed on welding
On solder 6 '.Housing 1, welding filler metal 6 ', extraction forms 5 are integrally placed into high temperature pricker according to the position relationship from inside to outside
In brazier, high temperature melts welding filler metal 6 ', and 5 vacuum sealing of forms is fixed on housing 1 by welding filler metal 6 ' when temperature lowers
On.
In one embodiment, the position of Windows 4 is nearby provided with mechanical strength enhancing structure, such as causes housing
Thickness near Windows increases or sets reinforcing rib structure.X-ray tube is a vacuum seal structure part, external
For air, inside is high vacuum, therefore housing needs to sustain an atmospheric pressure.Since housing is formed carefully at Windows
Long perforate, structural strength die down, its deflection under the action of atmospheric pressure is it is possible that exceed design permissible value, therefore pass through increasing
Add local thickness of shell or reinforcing rib to increase the mechanical strength of Windows.
Fig. 9 is that the solid of the housing of the multifocal X-ray tube of another exemplary embodiment according to the present utility model is shown
It is intended to；Figure 10 is the schematic cross-section at Windows of housing shown in Fig. 9.
In a kind of exemplary embodiment, forms 5 are fixed to housing 1 by connection component, and the connection component includes：
The pressing plate 8 of annular, is configured to the periphery of forms 5 being pressed together on housing 1；And fastener 9, it is passed through in the periphery of forms 5
Pressing plate 8, pressing plate 8 is fixed on housing 1.Forms 5 have the larger area of opposite Windows 4, can cover all
Windows 4.Further, connection component further includes the sealing ring 7 being arranged between the periphery of housing 1 and forms 5.Sealing ring
7 be with high vacuum seal characteristic, and is one week complete, sealing ring 7 is placed on circular the Windows 4 of housing 1 and forms 5
Periphery between.Pressing plate 8 has multiple perforates with 4 corresponding position of Windows, and pressing plate 8 is pressed on forms 5, and passes through window
Body 5 can uniform crush seal circle 7.Fastener 9 connects pressing plate 8 and housing 1, is squeezed sealing ring 7 by fastening effect
Deformation, finally so that forms 5 realize that vacuum sealing is connected with housing 1.Fastener 9 is for example including screw or rivet.Using this
Forms 5, can be securely fixed on housing 1 by kind fastening means.
In another embodiment, forms 5 and housing 1 are made into integration by identical material.As shown in figure 4, forms 5 are to pass through
Thickness for a part of material is removed in processing on D housings 1 and it is manufactured, and then form Windows 4.In this way, remaining thickness
It is used as d very small part materials and draws forms 5, forms 5 is a part for housing 1.That is, forms 5 are formed with housing 1
One entirety, has an extraordinary vacuum leakproofness, and forms 5 easily are formed in the inside of housing 1 or inside and outer
Position (such as Fig. 5 A, shown in 5B) between side.
According to the embodiment of the utility model another aspect, as Figure 1-10 shows, provide a kind of for multifocal X-ray tube
Housing 1.Windows 4 are equipped on housing 1, the Windows 4 are formed as elongated slit and are arranged to and anode 3
On multiple target spots alignment.Forms 5 are provided on Windows 4, the forms 5 are arranged to be sealed the housing 1
And the X-ray inside the housing 1 is allowed to be drawn by the forms 5.
The housing of above-mentioned working Examples according to the present utility model and multifocal X-ray tube, by multifocal X-ray
An elongated Windows are arranged on the housing of pipe, the position of Windows is aligned with multiple target spots of anode, will be from anode
The X-ray that projects of multiple target spots be drawn out to hull outside, while realize the high vacuum state inside ray tube.Further,
Increase the mechanical strength of Windows by increasing local thickness of shell or additional reinforcing rib structure, possess forms enough
It intensity and is connected by close connection mode with ray tube shell, realizes the high vacuum state inside ray tube.
Although for the purpose illustrated according to being presently considered to be most realistic and preferred embodiment to this reality
It is described in detail with new.It will be understood to those skilled in the art that embodiment described above is all exemplary,
And those skilled in the art can make improvements, the structure described in various embodiments in not recurring structure or
It can be freely combined in the case of conflict in terms of principle, so as to the basis solve the utility model the technical issues of
On, realize more kinds of housings and multifocal X-ray tube.
After the preferred embodiment of the utility model is described in detail, those skilled in the art can be clear
Solution can carry out various change in the case where not departing from the protection domain of appended claims and spirit with changing, and the utility model is also
It is not only restricted to the embodiment of examples cited embodiment in specification.
Claims (29)
1. a kind of multifocal X-ray tube, including：
Housing；
Cathode, the cathode are located in housing and are configured to draw electronic beam current respectively from multiple positions；And
Anode, the anode are located in housing and are configured to be aligned with cathode to generate Multi-Beam X-Ray from multiple target spots,
It is characterized in that, being equipped with Windows on housing, the Windows shape is elongated slit and Windows
It is arranged to be aligned with multiple target spots on anode, and
Forms are provided on the Windows, the forms are arranged to be sealed the housing and the X is allowed to penetrate
Line draws the housing by the forms.
2. multifocal X-ray tube according to claim 1, which is characterized in that
At least a portion in the section of Windows in the direction of the width has from inside to outside gradually widened truncated cone.
3. multifocal X-ray tube according to claim 2, which is characterized in that
The truncated cone is substantially consistent with the sector crosssection of beam of x-rays.
4. the multifocal X-ray tube according to any one of claim 1-3, which is characterized in that
The thickness of the forms is less than the thickness of the housing.
5. multifocal X-ray tube according to claim 4, which is characterized in that
The thickness of the forms is less than 1mm.
6. the multifocal X-ray tube according to any one of claim 1-3, which is characterized in that
The length of the Windows is more than 5 with width ratio.
7. the multifocal X-ray tube according to any one of claim 1-3, which is characterized in that
The forms are arranged between the inside, outside or inner side and outer side of Windows.
8. multifocal X-ray tube according to claim 7, which is characterized in that the forms and the housing are by different
Material is made.
9. multifocal X-ray tube according to claim 8, which is characterized in that
The forms are fixed to housing by the way of welding, sintering or crimping.
10. multifocal X-ray tube according to claim 8, which is characterized in that
The forms are fixed to housing by connection component, and the connection component includes：
The pressing plate of annular is configured to the periphery pressing of the forms on the housing；
In the periphery of the forms through the pressing plate, the pressing plate is fixed on the housing for fastener；And
Sealing ring is arranged between the periphery of the housing and the forms.
11. multifocal X-ray tube according to claim 8, which is characterized in that
The stage portion towards hull outside is formed in the Windows, the periphery of the forms is fixed on the stage portion
On.
12. multifocal X-ray tube according to claim 8, which is characterized in that
The housing is made of metal, ceramics or glass, and the forms are by being selected from titanium foil, copper foil, aluminium foil, beryllium paper tinsel, stainless steel
A kind of metal foil in the group of paper tinsel composition be made or the group that is made of potsherd, sheet glass or quartz plate in one kind
Foilnonmetallic foil be made.
13. multifocal X-ray tube according to claim 7, which is characterized in that the forms and the housing are by identical
Material is made into integration.
14. multifocal X-ray tube according to claim 4, which is characterized in that
The ratio between the thickness of the forms and the thickness of housing are less than 1：5.
15. multifocal X-ray tube according to claim 14, which is characterized in that
The ratio between the thickness of the forms and the thickness of housing are less than 1：10.
16. multifocal X-ray tube according to claim 5, which is characterized in that
The thickness of the forms is 0.02mm~0.5mm.
17. multifocal X-ray tube according to claim 6, which is characterized in that
The length of the Windows is more than 10 with width ratio.
18. a kind of housing for multifocal X-ray tube, which is characterized in that
Be equipped with Windows on housing, the Windows be formed as elongated slit and be arranged to it is multiple on anode
Target spot is aligned, and
Forms are provided on the Windows, the forms are arranged to be sealed the housing and allow the housing
Internal X-ray draws the housing by the forms.
19. housing according to claim 18, which is characterized in that
At least a portion in the section of Windows in the direction of the width has from inside to outside gradually widened truncated cone.
20. housing according to claim 19, which is characterized in that
The truncated cone is substantially consistent with the sector crosssection of beam of x-rays.
21. according to the housing described in any one of claim 18-20, which is characterized in that
The thickness of the forms is less than the thickness of the housing.
22. according to the housing described in any one of claim 18-20, which is characterized in that
The forms are arranged between the inside, outside or inner side and outer side of Windows.
23. housing according to claim 22, which is characterized in that the forms and the housing are by different material systems
Into.
24. housing according to claim 23, which is characterized in that
The forms are fixed to housing by the way of welding, sintering or crimping.
25. housing according to claim 23, which is characterized in that
The forms are fixed to housing by connection component, and the connection component includes：
The pressing plate of annular is configured to the periphery pressing of the forms on the housing；
In the periphery of the forms through the pressing plate, the pressing plate is fixed on the housing for fastener；And
Sealing ring is arranged between the periphery of the housing and the forms.
26. housing according to claim 22, which is characterized in that
The stage portion towards hull outside is formed in the Windows, the periphery of the forms is fixed on the stage portion
On.
27. housing according to claim 23, which is characterized in that
The housing is made of metal, ceramics or glass, and the forms are by being selected from titanium foil, copper foil, aluminium foil, beryllium paper tinsel, stainless steel
A kind of metal foil in the group of paper tinsel composition is made or is made of potsherd, sheet glass or quartz plate.
28. housing according to claim 21, which is characterized in that
The ratio between the thickness of the forms and the thickness of housing are less than 1：5.
29. housing according to claim 28, which is characterized in that
The ratio between the thickness of the forms and the thickness of housing are less than 1：10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791143.8U CN207441650U (en) | 2017-06-30 | 2017-06-30 | Multifocal X-ray tube and housing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720791143.8U CN207441650U (en) | 2017-06-30 | 2017-06-30 | Multifocal X-ray tube and housing |
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| CN207441650U true CN207441650U (en) | 2018-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108633162A (en) * | 2018-07-11 | 2018-10-09 | 中广核达胜加速器技术有限公司 | A kind of titanium window is fixed and clamped structure and the titanium window fixation kit with it |
| CN109216140A (en) * | 2017-06-30 | 2019-01-15 | 同方威视技术股份有限公司 | Multifocal X-ray tube and shell |
| CN113692103A (en) * | 2020-05-19 | 2021-11-23 | 四川智研科技有限公司 | Leading-out window supporting structure and application method thereof |
-
2017
- 2017-06-30 CN CN201720791143.8U patent/CN207441650U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216140A (en) * | 2017-06-30 | 2019-01-15 | 同方威视技术股份有限公司 | Multifocal X-ray tube and shell |
| CN108633162A (en) * | 2018-07-11 | 2018-10-09 | 中广核达胜加速器技术有限公司 | A kind of titanium window is fixed and clamped structure and the titanium window fixation kit with it |
| CN108633162B (en) * | 2018-07-11 | 2023-10-20 | 中广核达胜加速器技术有限公司 | Titanium window fixing and compacting structure and titanium window fixing assembly with same |
| CN113692103A (en) * | 2020-05-19 | 2021-11-23 | 四川智研科技有限公司 | Leading-out window supporting structure and application method thereof |
| CN113692103B (en) * | 2020-05-19 | 2023-12-08 | 四川智研科技有限公司 | Lead-out window supporting structure and application method thereof |
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