CN108389768A - Array sweeping X-ray emitter - Google Patents
Array sweeping X-ray emitter Download PDFInfo
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- CN108389768A CN108389768A CN201810441775.0A CN201810441775A CN108389768A CN 108389768 A CN108389768 A CN 108389768A CN 201810441775 A CN201810441775 A CN 201810441775A CN 108389768 A CN108389768 A CN 108389768A
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- 238000010408 sweeping Methods 0.000 title claims abstract description 48
- 230000005855 radiation Effects 0.000 claims abstract description 73
- 238000004804 winding Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910001080 W alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
Abstract
Embodiment of the disclosure discloses a kind of array sweeping X-ray emitter.Array sweeping X-ray emitter includes：Shell；Anode is arranged in the shell, and anode includes opposite anode first end and anode second end；Pen shape radiation source beam, setting are configured in the anode first end to emit pencil X-ray beam；Fan-shaped radiation source beam, setting configure to emit fan-shaped x-ray beam, wherein first end and second end is the opposite both ends of the anode in the anode second end；Wherein, pen shape radiation source beam and fan-shaped radiation source beam being capable of independent operations.
Description
Technical field
Embodiment of the disclosure is related to ray generation technique field, more particularly to array sweeping X-ray emitter.
Background technology
X-ray transmission and back scattering imaging technology are widely applied in field of safety check respectively.Transmission imaging skill
Art penetrability is good, and spatial resolution is high, the difference of attenuation degree after different material is passed through according to X-ray, to the high atom such as copper and iron
Ordinal number substance reaction is sensitive, imaging clearly, and it is preferable to debate knowledge effect.Back scattering imaging technology radiation amount dosage is low, and safety is good, though
Right penetration capacity is limited, but more sensitive to low atomic number substance, has detection well for drugs, gasoline and explosive etc.
Effect；In addition, back scattering imaging technology is using a beam scanning mode, it is therefore desirable to will be fanned caused by typical X-ray generator
The pencil of forms or pencil-beam are modulated into pencil beam.
When two kinds of technologies of X-ray transmission and back scattering are used alone, because of its inherent shortcoming, inevitably missing inspection
Phenomenon.Increasingly serious with security situation, the requirement for rays safety detection apparatus is also higher and higher, then just there is X-ray transmission
The demand used is merged with backscattering technique；Detection range can thus be expanded, improve detection performance.
Invention content
According to the one side of the disclosure, embodiment of the disclosure provides a kind of array sweeping X-ray emitter, including：Outside
Shell；Anode is arranged in the shell, and anode includes opposite anode first end and anode second end；Pen shape radiation source beam, if
It sets in the anode first end, configures to emit pencil X-ray beam, wherein pen shape radiation source beam includes the first cathode, described
First cathode arrangement in pen shape radiation source beam towards anode first end launching electronics；Fan-shaped radiation source beam is arranged described
Anode second end configures to emit fan-shaped x-ray beam, wherein fan-shaped radiation source beam includes the second cathode, second cathode
It is configured in fan-shaped radiation source beam towards anode second end launching electronics；Wherein, pen shape radiation source beam and fan-shaped radiation source beam
It being capable of independent operation.
First cathode and the second cathode, first cathode arrangement is at the anode first end transmitting towards pen shape radiation source beam
Electronics, second cathode arrangement is at the anode second end launching electronics towards fan-shaped radiation source beam；First high voltage power supply and
Two high voltage power supplies, first high voltage power supply are applied between the first cathode and anode first end, and second high voltage power supply is applied
It is added between the second cathode and anode second end, alternatively, the first high voltage power supply and the second high voltage power supply can be the same high pressure
Power supply.
In one embodiment, anode, which is arranged to anode first end and anode second end, to be rotated relative to one another.
In one embodiment, pen shape radiation source beam includes the first target, setting in anode first end end face, the first target by
Emit X-ray after electron bombardment；Fan-shaped radiation source beam includes the second target, is arranged in anode second end end face, the second target is by electricity
Emit X-ray after son bombardment；
Wherein, the length of the length extending direction out of plumb of first end end face and anode, second end end face and anode extends
Direction out of plumb.
In one embodiment, the array sweeping X-ray emitter is arranged so that the first target of pen shape radiation source beam
It can synchronously or asynchronously emit X-ray with the second target of fan-shaped radiation source beam.
In one embodiment, array sweeping X-ray emitter is arranged so as to be applied to the first cathode and anode first
Voltage between end is equal to the voltage being applied between the second cathode and anode second end, to which the X-ray energy generated is identical.
In one embodiment, array sweeping X-ray emitter is arranged so as to be applied to the first cathode and anode first
Voltage between end is not equal to the voltage being applied between the second cathode and anode second end, and the X-ray energy to generate is not
It is identical.
In one embodiment, pen shape radiation source beam includes protection rotating cylinder, is configured to the X-ray for emitting the first target modulation
At pencil X-ray beam；Wherein, fan-shaped radiation source beam includes collimator, is configured to the X-ray that the second target emits being modulated into fan
Shape X-ray beam.
In one embodiment, protection rotating cylinder surrounds anode first end, allows electronics that protection rotating cylinder is passed through to bombard the first target,
And limit the X-ray of the first target transmitting so that the X-ray of the first target transmitting can only be projected from protection rotating cylinder perforation hole, be formed
Pencil X-ray beam.
In one embodiment, pen shape radiation source beam further includes the armature being arranged on the anode close to anode first end
Iron core and the armature winding being centered around on armature core, and corresponding armature core be arranged in protection rotating cylinder inwall it is multiple forever
Magnet drives protection rotating cylinder so as to armature winding and multiple permanent magnet interactions when armature winding forms changing magnetic field
It is rotated around the anode first end.
In one embodiment, collimator surrounds anode second end, allows electronics that collimator is passed through to bombard the second target, and limit
Make the X-ray of the second target transmitting so that the X-ray of the second target transmitting can only be projected from collimator port, form fan-shaped X-ray
Beam.
In one embodiment, the fan-shaped X that the pencil X-ray beam and collimator port that protection rotating cylinder perforation hole projects project
Beam is located in two parallel planes.
In one embodiment, it looks up along anode lengths side, the pencil X-ray beam that protection rotating cylinder perforation hole projects
The coverage area for the fan-shaped x-ray beam that scanning coverage area and collimator port project is not overlapped, partly overlaps or is completely superposed.
In one embodiment, the subtended angle and collimation of the scanning range for the pencil X-ray beam that protection rotating cylinder perforation hole projects
The subtended angle for the fan-shaped x-ray beam that device outlet is projected is identical.
In one embodiment, the subtended angle and collimation of the scanning range for the pencil X-ray beam that protection rotating cylinder perforation hole projects
The subtended angle for the fan-shaped x-ray beam that device outlet is projected differs.
In one embodiment, the anode includes anode handle, and the anode handle is used for the cage connection will be described
Anode is fixed on the enclosure.
In one embodiment, the anode handle includes cooling duct, is configured to flow through cooling medium.
Description of the drawings
Fig. 1 shows the array sweeping X-ray emitter schematic cross-section of one embodiment of the disclosure；
Fig. 2 shows the schematic diagrames of the seal nipple of one embodiment of the disclosure；
Fig. 3 shows cutting for the protection rotating cylinder of the anode first end of the array sweeping X-ray emitter of embodiment of the disclosure
Face schematic diagram；
Fig. 4 shows the section of the collimator of the anode second end of the array sweeping X-ray emitter of embodiment of the disclosure
Schematic diagram；
Fig. 5 shows the schematic diagram of X-ray beam at the both ends of the array sweeping X-ray emitter of embodiment of the disclosure；
Fig. 6 shows the schematic diagram of X-ray beam at the both ends of the array sweeping X-ray emitter of embodiment of the disclosure；
Fig. 7 shows that the position relationship of X-ray beam at the both ends of the array sweeping X-ray emitter of embodiment of the disclosure shows
It is intended to, wherein Fig. 7 a are the schematic diagrames for showing both ends X-ray beam, and Fig. 7 b show the subtended angle and fan of pencil X-ray beam scanning range
The position relationship of shape X-ray beam angle.
Specific implementation mode
Although the disclosure allows various modifications and interchangeable form, its specific embodiment passes through example
Mode is shown in the accompanying drawings, and will be described herein in detail.It should be appreciated, however, that the attached drawing of accompanying and detailed retouching
It states and is not configured to the disclosed concrete form that is restricted to of the disclosure, but on the contrary, be to cover the right fallen by being appended
It is required that all modifications, equivalent form and alternative forms in the spirit and scope of the present disclosure limited.Attached drawing be in order to illustrate,
Thus draw not to scale.
The terms such as "upper", "lower" have been used in the present specification, are not intended to limit the absolute orientation of element, but are
The relative position of description element in the view, helps to understand." top side " and " bottom side " is relative to general feelings in this specification
Under condition, the orientation of the upright the upper side and lower side of object.
Multiple embodiments according to the disclosure are described with reference to the accompanying drawings.
A kind of array sweeping X-ray emitter of one embodiment of the disclosure is shown referring to Fig. 1, Fig. 1, including：Shell；
Anode is arranged in the shell, and anode includes opposite anode first end and anode second end；Pen shape radiation source beam, setting
In the anode first end, configuration is emitting pencil X-ray beam, wherein and pen shape radiation source beam includes the first cathode, and described the
One cathode arrangement in pen shape radiation source beam towards anode first end launching electronics；Fan-shaped radiation source beam is arranged in the sun
Pole second end configures to emit fan-shaped x-ray beam, wherein fan-shaped radiation source beam includes the second cathode, and second cathode is matched
It is set in fan-shaped radiation source beam towards anode second end launching electronics.In the present embodiment, array sweeping X-ray emitter can
To emit two beam X-rays, realizes and irradiated while single X-ray tube implements two objects, need to use compared with the existing technology
Two sets of X-ray generators can save space, especially beneficial for the limited occasion in some places.Further, the present embodiment
Array sweeping X-ray emitter pencil X-ray beam and fan-shaped x-ray beam can be provided simultaneously so that array sweeping X-ray send out
The application of raw device is more extensive, and adaptability improves.In the present embodiment, pen shape radiation source beam and fan-shaped radiation source beam can be regarded as
Share an anode.
Further, pen shape radiation source beam 1 and fan-shaped radiation source beam 2 can be with independent operations.For example, 1 He of pen shape radiation source beam
Fan-shaped radiation source beam 2 can operate simultaneously, can also be according to certain sequential operation, and the X that can also emit identical energy respectively is penetrated
Harness can also emit the X-ray beam of different-energy, these configurations will make the use of array sweeping X-ray emitter more
Flexibly, different demands is adapted to, the work(of two X-ray generators is really realized by an array sweeping X-ray emitter
Energy.
The component of the array sweeping X-ray emitter of the present invention is packaged in a shell 6, can also pen shape radiation source beam
1 and fan-shaped radiation source beam 2 be packaged in respectively in two casing parts, the two casing parts both ends with anode handle 5 respectively
Divide and is tightly connected.
In one embodiment of the disclosure, the first cathode 10 is considered as a part for pen shape radiation source beam 1, and second is cloudy
Pole 30 is considered as a part for fan-shaped radiation source beam 2.First cathode 10 includes the first filament 11, the first focus mask 12 and first
Heater lead 13；Second cathode 30 includes the second filament 31, the second focus mask 32 and the second heater lead 33.First heater lead
13 and second cathode of the heater lead 33 for external filament supply and high voltage power supply.In one embodiment, the first filament 11
The cathode and filament supply of a high voltage power supply are connected, launching electronics are used for；Second filament 31 connects the same high voltage power supply
Cathode and filament supply are used for launching electronics.In another embodiment, the first filament 11 connect a high voltage power supply cathode and
Filament supply is used for launching electronics；Second filament 31 connects the cathode and filament supply of another high voltage power supply, for emitting
Electronics to which the voltage and current of the first filament 11 and the second filament 31 can be controlled individually, and then realizes pencil beam above-mentioned
The autonomous working of radiation source 1 and fan-shaped radiation source beam 2.First focus mask 12 and the second focus mask 32 can focus electronics, dual-purpose
Make support cathode.The opening of electron exit is arranged in first focus mask 12, and other parts are sealings, and electronics will not scatter to environment
In, the second focus mask 32 is similar.In one embodiment, the first filament 11, the second filament 31, the first target 23 and the second target 43
Center is located on same horizontal linear.As shown in Figure 1, one end of shell 6 and the first focus mask 12 weld, shell 6 it is another
It is welded with the second focus mask 32 at end.Shell 6 can be the materials such as hard glass, ripple ceramic or cermet.Implement at one
In example, in order to reduce the loss of X-ray beam, its delivery efficiency and dosage performance, the portion for penetrating X-ray of shell 6 are improved
Beryllium window can be embedded in by dividing.
In accordance with an embodiment of the present disclosure, pen shape radiation source beam 1 and fan-shaped radiation source beam 2 can as a result, be combined with independent operation
The energy for two X-ray beams that scanning X-ray emitter is sent out can be controlled individually.
For example, in one embodiment, the voltage being applied between the first cathode 10 and anode first end 20, which is equal to, to be applied
Voltage between the second cathode 30 and anode second end 40, to which pen shape radiation source beam 1 and fan-shaped radiation source beam 2 generate respectively
X-ray energy it is identical.
In another embodiment, array sweeping X-ray emitter is arranged so as to be applied to the first cathode 10 and anode
Voltage between first end 20 is not equal to the voltage being applied between the first cathode 10 and anode first end 20, to pencil beam spoke
The X-ray energy that source 1 generates respectively with fan-shaped radiation source beam 2 is penetrated to differ.
For example, the situation for detecting two different objects, object carries out back scattering detection, another object into
Row transmission detection, the array sweeping X-ray emitter of the present embodiment can be emitted the pencil X-ray beam of two beam different-energies simultaneously
It completes to detect with fan-shaped x-ray beam, this improves detection efficiency, enhances the adaptability of array sweeping X-ray emitter, significantly
Improve the application range of equipment.
In the present embodiment, pen shape radiation source beam 1 includes the first target 23, is arranged in 20 end face of anode first end, the first target
23 after electron bombardment by emitting X-ray；Fan-shaped radiation source beam 2 includes the second target 43, is arranged in 40 end face of anode second end, the
Two targets 43 after electron bombardment by emitting X-ray.In the present embodiment, the length extending direction of first end end face and anode does not hang down
Directly, the length extending direction out of plumb of second end end face and anode.In the present embodiment, pen shape radiation source beam 1 and fladellum spoke
Penetrating source 2 can be with independent operation, so that the first target 23 and the second target 43 can synchronously or asynchronously emit X-ray.
In one embodiment, pen shape radiation source beam 1 includes protection rotating cylinder 211, is configured to penetrate the X that the first target 23 emits
Line is modulated into pencil X-ray beam.Fan-shaped radiation source beam 2 includes collimator 41, is configured to the X-ray for emitting the second target 43 modulation
At fan-shaped x-ray beam.
When on the electron bombardment of the first cathode 10 to the first target 23, the first target 23 will generate X-ray, be set before the first target 23
Setting collimator can limit the X-ray that the first target 23 is sent out in a certain range.Exist for clarity, setting is not shown in Fig. 1
Before first target 23 to limit X-ray be emitted range collimator.However, it should be understood that the X-ray of the first target 23 outgoing can
To be fan-shaped X-ray.The subtended angle of collimator determines the subtended angle of the pencil of planes of the fan-shaped X-ray of outgoing.Protection rotating cylinder 211 surrounds sun
Pole first end 20, and electronics is allowed to pass through the end face for protecting rotating cylinder 211, such as end face setting opening or hole, the first target 23 is bombarded,
And limit the X-ray of the first target 23 transmitting so that the X-ray of the first target 23 transmitting can only be penetrated from protection rotating cylinder perforation hole 212
Go out, forms pencil X-ray beam.Protection rotating cylinder 211 is configured to rotate around the anode first end 20, to pass through protection
The pencil X-ray beam that rotating cylinder perforation hole 212 is formed scans within the scope of certain angle.
As shown in figure 3, pen shape radiation source beam 1 further includes the armature iron being arranged on the anode close to anode first end 20
Core 215 and the armature winding 214 being centered around on armature core 215, and the corresponding setting of armature core 215 is in protection rotating cylinder 211
Multiple permanent magnets 213 on inner wall, so as to the armature winding 214 when armature winding 214 forms changing magnetic field and multiple permanent magnetism
Body 213 interacts and protection rotating cylinder 211 is driven to be rotated around the anode first end 20.
As shown in figure 3, in one embodiment, part of the anode first end 20 far from the first target 23 is provided with cabling pipeline
51, one end of driver 217 is connect by cable 218 with Exciting Windings for Transverse Differential Protection 214, and the cable 219 of the other end passes through cabling pipeline 51
It is connect with the inside of seal nipple 52.After energization, the constantly commutation of armature winding 214 is powered and forms rotating excitation field, and multiple
Magnetic field interaction caused by permanent magnet 213 pushes protection rotating cylinder 211 to do circle as axis using the center line of anode first end 20
Zhou Yundong.X-ray fladellum is so modulated by the rotary motion of protection rotating cylinder perforation hole 212 X-ray of scanning mode
Pencil beam.
In one embodiment, the anode of array sweeping X-ray emitter includes anode handle 5, the anode handle 5 with it is described
Shell 6 is connected for the anode to be fixed on inside the shell 6.Cable tray 51 can be set in anode handle 5.Anode handle
5 include seal nipple 52, and structure forms as shown in Fig. 2, being sealed in conductive draw pin 522 therein by glass stem 521 and sintering.
Glass stem 521 is melted with anode handle 5 as a closed entirety by techniques such as sintering；522 one end of conductive draw pin connects pen shape
1 inner lead of radiation source beam, the other end are connected to outside X-ray tube.This gage system ensure that inside X-ray tube to be vacuum
State.In addition, or other sealings and fixed pattern, such as ring flange squeezes seal with O ring.
Protection rotating cylinder 211 and outer apical ring 223 can select tungsten or tungsten alloy material, protect rotating cylinder 211 and outer apical ring in this way
223 can effectively realize X-ray radiation protection together.
In one embodiment, anode first end 20, sleeve 221 and 222 preferred red copper of interior apical ring or Cu alloy material,
Be conducive to radiate, while having both certain X-ray radiation protective capacities.
In one embodiment, sleeved 221 are covered near anode first end 20, bearing 220 is sleeved on sleeve 221,
The inner wall sleeve female connector cylinder 221 of the inner ring of bearing 220.The inner ring of bearing 220 is limited by the upper shoulder and interior apical ring 222 of sleeve 221,
Outer shroud is limited by the convex edge and outer apical ring 223 for protecting rotating cylinder 211.Rotating cylinder 211 is protected to pacify by the outer wall of the outer shroud of bearing 220
Dress.Protect several permanent magnets 213 of the inner wall tightening of rotating cylinder 211, and the state that is evenly distributed.Driver 217 is placed in armature
The side of iron core 215 is fixed on by lantern ring 216 in anode first end 20.The side of target spot 23 is provided with cable hole 51, driver
217 one end is connect by cable 218 with Exciting Windings for Transverse Differential Protection 214, and the cable 219 of the other end passes through cable hole 51 and seal nipple 52
Inside connection.After energization, the constantly commutation of armature winding 214 is powered and forms rotating excitation field, caused by permanent magnet 213
Magnetic field interaction pushes protection rotating cylinder 211 to move in a circle as axis using the center line of first anode stick 22.So pass through protection
X-ray fladellum is modulated into continuous X-ray pencil beam by the rotary motion of rotating cylinder perforation hole 212
Protect rotating cylinder 211, sleeve 221, outer apical ring 223 and the composition of first anode stick 22 one almost closed functional
X-ray shield room.
As shown in Figure 1, collimator 41 surrounds anode second end 40, allow electronics that collimator 41 is passed through to bombard the second target 43,
And limit the X-ray of the second target 43 transmitting so that the X-ray of the second target 43 transmitting can only be projected from collimator port 411, shape
At fan-shaped x-ray beam.
Fig. 4 shows the sectional view of collimator 41.As shown in figure 4, collimator 41 has fan-shaped opening, i.e. collimator port
411.The shape of collimator port 411 determines the profile of the X-ray beam projected.The end face of collimator 41, which is additionally provided with, allows electronics to penetrate
Enter the opening in collimator 41 or hole, electronics from the end face of collimator 41 opening or hole inject, bombard the second target 43, to
Generate X-ray.Collimator 41 can have other shapes, however, collimator 41 needs to shield scattered electron and the X of generation is penetrated
Line not only prevents electronics and ray to the damage of ambient enviroment, is additionally operable to generate desired X-ray beam.Collimator 41 can be by
Tungsten or tungsten alloy material are made, and can effectively realize the protection of X-ray.
In accordance with an embodiment of the present disclosure, protect rotating cylinder 211 and collimator 41 that can modulate respectively from the first target 23 and second
The X-ray that target 43 emits, including modulation are formed by the features such as subtended angle, the direction of the launch of fan-shaped x-ray beam.It should be understood that anti-
Shield rotating cylinder 211 and collimator 41 control be X-ray beam shape and direction, and the energy of X-ray beam by anode and cathode it
Between high voltage power supply control, when bombardment to the electron energy on the first target 23 high, the then X-ray energy that the first target 23 projects
It is high.It, can as a result, by controlling the structure and direction of the voltage between anode and cathode, setting protection rotating cylinder 211 and collimator 41
Desired X-ray beam is obtained at the both ends of array sweeping X-ray emitter respectively.In array sweeping X-ray as shown in Figure 1
In generator, first collimator can be set, the first target of first collimator pair 23 emits before the first target 23 of anode first end 20
X-ray carry out limitation or moulding, such as form the first fan-shaped x-ray beam, and the first fan-shaped x-ray beam passes through protect rotating cylinder again
211 form pencil X-ray beam, and the radiation exit subtended angle of first collimator defines the amplitude that pencil X-ray beam can scan.
In one embodiment, the pencil X-ray beam and collimator port 411 that protection rotating cylinder perforation hole 212 projects project
Fan-shaped x-ray beam be located in two parallel planes.As shown in figure 5, anode first end 20 and anode second end 40 are sent out
The X-ray penetrated is downward, and in two parallel faces.It should be understood that Fig. 5 is merely to illustrate, anode first end
20 and the X-ray that emits of anode second end 40 can be located in two parallel faces simultaneously upwards.
In the embodiment illustrated in fig. 6, the X-ray that anode first end 20 emits is upward, the X that anode second end 40 emits
Ray is downward.In the present embodiment, the direction of 40 end face of 20 end face of anode first end and anode second end is left on the contrary, in figure 6
Hold end face towards oblique upper, right end end face is obliquely downward.
In one embodiment, the scanning coverage area for the pencil X-ray beam that protection rotating cylinder perforation hole 212 projects or scanning
The coverage area for the fan-shaped x-ray beam that amplitude and collimator port 411 project is not overlapped when looking up along anode lengths side, portion
Divide overlapping or is completely superposed.Fig. 7 describe the pencil X-ray beam that protection rotating cylinder perforation hole 212 projects scanning coverage area and
The overlapping relation of the coverage area for the fan-shaped x-ray beam that collimator port 411 projects.Fig. 7 is only for showing schematically that combination is swept
The position relationship for retouching X-ray beam at the both ends of X-ray emitter simplifies in view such as protecting rotating cylinder, collimator other
Component.
As shown in Figure 7a, it is assumed that the scanning for the pencil X-ray beam that 23 corresponding protection rotating cylinder perforation hole 212 of the first target projects
The subtended angle of range or amplitude is α1, the subtended angle for the fan-shaped x-ray beam that 43 corresponding collimator port 411 of the second target projects is α2, two
The angle of the lap of a X-ray beam subtended angle scope is α3, as shown in Figure 7b.Then effective X-ray in the specific embodiment
Beam angle α is not less than α1Or α2, correspondence is：
α=α1+α2-α3
In the above embodiments, the scanning range of the pencil X-ray beam that protection rotating cylinder perforation hole 212 projects or amplitude
Subtended angle α1The subtended angle α of the fan-shaped x-ray beam projected with collimator port 4112It is identical.In another embodiment, protection rotating cylinder goes out
The scanning range for the pencil X-ray beam that perforation 212 projects or the subtended angle α of amplitude1The fan-shaped X projected with collimator port 411 is penetrated
The subtended angle α of harness2It differs.
In one embodiment, anode handle 5 can also be arranged for the anode of connection high voltage power supply, particularly, for
Negative high voltage power source can be directly grounded.Anode handle 5 can be a part for anode, and in other words, anode is integral piece.Another
In embodiment, anode handle 5 can be the component for being connected to anode.
Anode and anode handle 5 can be made of red copper or copper alloy.This is conducive to conduction, reduces resistance；Moreover, being conducive to
Heat dissipation；In addition, also having certain X-ray radiation protective capacities.
In one embodiment of the disclosure, anode is made of anode first end 20 and anode second end 40, anode first
End 20 and anode second end 40 can be pivotably movable with respect each other.In the present embodiment, pass through anode first end 20 and anode second
It turns an angle between end 40 so that protection rotating cylinder perforation hole 212 and 411 direction of collimator port are relative to original setting mistake
Position certain angle.For example, in the initial state, the sector of the pen shape radiation source beam 1 and anode second end 40 of anode first end 20
The pencil X-ray beam that radiation source beam 2 emits respectively is located at fan-shaped x-ray beam in two parallel faces, and pencil X-ray
The scanning range and fan-shaped x-ray beam of beam are overlapped along anodes centre's axis direction.By relatively rotating anode first end 20
With anode second end 40, can make pencil X-ray beam scanning range and fan-shaped x-ray beam along anodes centre's axis direction
On be staggered certain angle.
It should be understood that can be changed according to actual needs at any time by relatively rotating anode first end 20 and anode second end 40
Become the overlapping situation of the pencil X-ray beam scanning range of array sweeping X-ray emitter and the coverage area of fan-shaped x-ray beam.
In one embodiment of the disclosure, the X-ray duct member of array sweeping X-ray emitter is packaged in a shell
In 6, can also pen shape radiation source beam 1 and fan-shaped radiation source beam 2 be packaged in two shells respectively, the two shells respectively with anode
The both ends part of handle 5 is tightly connected.
Although some embodiments of this totality inventional idea have been shown and have illustrated, those of ordinary skill in the art will manage
Solution can make a change these embodiments in the case of the principle and spirit without departing substantially from this totality inventional idea, the disclosure
Range is limited with claim and their equivalent.
Claims (16)
1. a kind of array sweeping X-ray emitter, including：
Shell；
Anode is arranged in the shell, and anode includes opposite anode first end and anode second end, wherein first end and the
Two ends are the opposite both ends of the anode；
Pen shape radiation source beam, setting configure to emit pencil X-ray beam, wherein pencil beam radiates in the anode first end
Source include the first cathode, first cathode arrangement in pen shape radiation source beam towards anode first end launching electronics；
Fan-shaped radiation source beam, setting configure to emit fan-shaped x-ray beam, wherein fladellum radiates in the anode second end
Source include the second cathode, second cathode arrangement in fan-shaped radiation source beam towards anode second end launching electronics；
Wherein, pen shape radiation source beam and fan-shaped radiation source beam being capable of independent operations.
2. array sweeping X-ray emitter as described in claim 1, Anodic are arranged to anode first end and anode second
End can be rotated relative to one another.
3. array sweeping X-ray emitter as claimed in claim 1 or 2, wherein pen shape radiation source beam includes the first target, if
It sets in anode first end end face, the first target after electron bombardment by emitting X-ray；Fan-shaped radiation source beam includes the second target, setting
In anode second end end face, the second target after electron bombardment by emitting X-ray；
Wherein, the length extending direction out of plumb of first end end face and anode, the length extending direction of second end end face and anode
Out of plumb.
4. array sweeping X-ray emitter as claimed in claim 3 is arranged so that the first target and fan of pen shape radiation source beam
Second target of pencil of forms radiation source can synchronously or asynchronously emit X-ray.
5. array sweeping X-ray emitter as claimed in claim 3, wherein array sweeping X-ray emitter is arranged so that
It is applied to the voltage between the first cathode and anode first end and is equal to the voltage being applied between the second cathode and anode second end,
To which the X-ray energy generated is identical.
6. array sweeping X-ray emitter as claimed in claim 3, wherein array sweeping X-ray emitter is arranged so that
It is applied to the voltage between the first cathode and anode first end and is not equal to the electricity being applied between the second cathode and anode second end
Pressure, to which the X-ray energy generated differs.
7. array sweeping X-ray emitter as claimed in claim 1 or 2, wherein
Pen shape radiation source beam includes protection rotating cylinder, is configured to the X-ray that the first target emits being modulated into pencil X-ray beam；With
Wherein, fan-shaped radiation source beam includes collimator, is configured to the X-ray that the second target emits being modulated into fan-shaped x-ray beam.
8. array sweeping X-ray emitter as claimed in claim 7, wherein protection rotating cylinder surrounds anode first end, allows electricity
Son passes through protection rotating cylinder to bombard the first target, and limits the X-ray of the first target transmitting so that the X-ray of the first target transmitting only can
It is projected from protection rotating cylinder perforation hole, forms pencil X-ray beam.
9. array sweeping X-ray emitter as claimed in claim 7, wherein pen shape radiation source beam further includes being arranged described
It is set close to the armature core of anode first end and the armature winding being centered around on armature core, and corresponding armature core on anode
Set protection rotating cylinder inwall on multiple permanent magnets, so as to armature winding formed changing magnetic field when armature winding with it is multiple forever
Magnet interacts and protection rotating cylinder is driven to be rotated around the anode first end.
10. array sweeping X-ray emitter as claimed in claim 7, wherein collimator surrounds anode second end, allows electricity
Son passes through collimator to bombard the second target, and limits the X-ray of the second target transmitting so that the X-ray of the second target transmitting only can be from
Collimator port projects, and forms fan-shaped x-ray beam.
11. array sweeping X-ray emitter as claimed in claim 7, wherein the pen shape X that protection rotating cylinder perforation hole projects is penetrated
Harness is located at the fan-shaped x-ray beam that collimator port projects in two parallel planes.
12. array sweeping X-ray emitter as claimed in claim 7, wherein look up along anode lengths side, protection turns
The covering model for the fan-shaped x-ray beam that the scanning coverage area and collimator port for the pencil X-ray beam that cylinder perforation hole projects project
It encloses and is not overlapped, partly overlaps or is completely superposed.
13. array sweeping X-ray emitter as claimed in claim 7, wherein the pen shape X that protection rotating cylinder perforation hole projects is penetrated
The subtended angle of the scanning range of harness is identical as the subtended angle for the fan-shaped x-ray beam that collimator port projects.
14. array sweeping X-ray emitter as claimed in claim 7, wherein the pen shape X that protection rotating cylinder perforation hole projects is penetrated
The subtended angle for the fan-shaped x-ray beam that the subtended angle of the scanning range of harness is projected with collimator port differs.
15. array sweeping X-ray emitter as claimed in claim 1 or 2, wherein the anode includes anode handle, the sun
Pole handle is used to the anode being fixed on the enclosure with the cage connection.
16. array sweeping X-ray emitter as claimed in claim 15, wherein the anode handle includes cooling duct, configuration
At flowing through cooling medium.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441775.0A CN108389768B (en) | 2018-05-10 | 2018-05-10 | Combined scanning X-ray generator |
| EP19799211.8A EP3812751A4 (en) | 2018-05-10 | 2019-05-10 | X-ray generator for hybrid scanning, hybrid examination apparatus, and examination method |
| BR112020022933-4A BR112020022933A2 (en) | 2018-05-10 | 2019-05-10 | combined scanning x-ray generator, composite inspection apparatus, and inspection method for a target to be inspected using the composite inspection apparatus |
| US17/054,025 US11467105B2 (en) | 2018-05-10 | 2019-05-10 | Combined scanning x-ray generator, composite inspection apparatus, and inspection method for hybrid |
| PCT/CN2019/086445 WO2019214724A1 (en) | 2018-05-10 | 2019-05-10 | X-ray generator for hybrid scanning, hybrid examination apparatus, and examination method |
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|---|---|---|---|
| CN201810441775.0A CN108389768B (en) | 2018-05-10 | 2018-05-10 | Combined scanning X-ray generator |
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| CN108389768B CN108389768B (en) | 2024-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019214724A1 (en) * | 2018-05-10 | 2019-11-14 | 同方威视技术股份有限公司 | X-ray generator for hybrid scanning, hybrid examination apparatus, and examination method |
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| Publication number | Publication date |
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| CN108389768B (en) | 2024-03-12 |
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