CN208861929U - A kind of X-ray generating assembly and x-ray imaging system - Google Patents
A kind of X-ray generating assembly and x-ray imaging system Download PDFInfo
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- CN208861929U CN208861929U CN201821234678.6U CN201821234678U CN208861929U CN 208861929 U CN208861929 U CN 208861929U CN 201821234678 U CN201821234678 U CN 201821234678U CN 208861929 U CN208861929 U CN 208861929U
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Abstract
The utility model embodiment discloses a kind of X-ray generating assembly and x-ray imaging system.It include: anode (11), the anode (11) includes anode target surface (12)；Cathode (10), for emitting the high-power electron beam for bombarding the anode target surface (12) to generate X-ray；X-ray filter (20), for filtering the X-ray；Wherein the X-ray filter (20) includes the first part (21) close to the cathode (10) and the second part (22) close to the anode (11), and the thickness of the first part (21) is greater than the thickness of the second part (22).Heel effect can be effectively reduced to the adverse effect of image quality in the utility model embodiment, and has good applicability.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to a kind of X-ray generating assembly and x-ray imaging
System.
Background technique
Medical image (Medical Imaging) is also referred to as medical imaging.Medical image refers to through x-ray imaging (X-
Ray), CT Scan (CT), Magnetic resonance imaging (MRI), ultrasonic imaging (ultrasound), positron scan (PET), brain
Electrograph (EEG), eyeball tracking (eye-tracking), wears the modern imaging techniques such as cranium Magnetic stimulation (TMS) at magneticencephalogram (MEG)
Check that human body can not use the process at the position of No operation means inspection.
The development of x-ray imaging technology is maked rapid progress.In x-ray imaging technology, heel effect (Heel effect) is right
Have in image quality and significantly affects.Heel effect is also known as x-ray anode end effect, refers to and is being parallel to bulb long axis direction
On, close to X-ray tube anode tap ray can nearlyr cathode terminal x ray intensity x it is lower, and closer to anode, X-ray spoke
It is more to penetrate intensity decline.Heel effect will lead to being unevenly distributed for X-ray density and intensity, and cathode direction X-ray intensity is greater than
Close to anode direction.This is because: angle tends to the X-ray of anode target surface compared to the X-ray of angle deflection cathode angle
The distance walked in target surface is more, thus can more be absorbed.
Heel effect causes the information content for including in image to be unevenly distributed, close to anode part, the included information of image
It can be markedly less than close to cathode portion, it is therefore desirable to which reduction heel effect as far as possible is to improve image quality.
Utility model content
The utility model embodiment proposes a kind of X-ray generating assembly and x-ray imaging system, to overcome or reduce foot
With effect to the adverse effect of imaging effect.
The technical solution of the utility model embodiment includes:
A kind of X-ray generating assembly, comprising:
Anode, the anode include anode target surface；
Cathode, for emitting the high-power electron beam for bombarding the anode target surface to generate X-ray；
X-ray filter, for filtering the X-ray；
Wherein the X-ray filter includes the first part close to the cathode and second close to the anode
Point, the thickness of the first part is greater than the thickness of the second part.
As it can be seen that the first part close to cathode has bigger thickness compared to the second part close to anode, therefore close
There is the second part that the first part of cathode compares close anode longer X-ray to walk distance, and the X of angle deflection cathode is penetrated
Line can more be absorbed in X-ray filter compared to the X-ray of angle deflection anode, therefore the utility model embodiment
The good balanced radiation intensity of the X-ray at cathode and the X-ray at anode of X-ray generating assembly, and by
This reduces heel effect to the adverse effect of imaging effect.
In one embodiment, further includes: light concentrator, for being blocked based on preset range through the X-ray filter
The X-ray of filtering.
As it can be seen that the utility model embodiment further executes filtering to X-ray using the effect of blocking of light concentrator, it can
To improve subsequent image quality.
In one embodiment, along from the first part to the direction of the second part, the X-ray filtering
The thickness monotone decreasing of device.
Therefore, along the direction from first part to second part, X-ray walks distance gradually in X-ray filter
Successively decrease and uptake gradually successively decreased, the good balanced cathode of the X-ray generating assembly of the utility model embodiment and anode it
Between whole X-rays radiation intensity, and thus further increase subsequent image quality.
In one embodiment, the X-ray filter includes the sheet metal with stepped construction.
Therefore, by the sheet metal of stacking can convenient implementation X-ray filter, have wide applicability.
In one embodiment, the stepped construction has right-angled trapezium section or right angled triangle section.
As it can be seen that being penetrated by implementing right-angled trapezium section or right angled triangle section, thickness changing trend and the X of stepped construction
The variation tendency that line walks distance is closely related, improves the applicability of the utility model embodiment.
A kind of x-ray imaging system, including as above described in any item X-ray generating assemblies and flat panel detector；
The flat panel detector, for detecting the X-ray of the X-ray generating assembly generation to generate image.
As it can be seen that the good balanced X-ray at the cathode of the x-ray imaging system of the utility model embodiment with lean on
The radiation intensity of X-ray at nearly anode, and which thereby enhance the image quality of flat panel detector.
In one embodiment, x-ray imaging system is selected from following group: X-ray rabat machine；X-ray stomach and intestine machine；
X-ray C arm surgical engine；X-ray mammary machine.
As it can be seen that the x-ray imaging system of the utility model embodiment can be applied in several kinds of medical equipment, have wide
General applicability.
Detailed description of the invention
Fig. 1 is to analyze schematic diagram according to the heel effect of the utility model embodiment.
Fig. 2 is the structure chart according to the X-ray generating assembly of the utility model embodiment.
Fig. 3 is the structure chart according to the X-ray bulb of the utility model embodiment.
Fig. 4 is the first demonstrative structure figure according to the X-ray bulb of the utility model embodiment.
Fig. 5 is the second demonstrative structure figure according to the X-ray bulb of the utility model embodiment
Fig. 6 is the demonstrative structure figure according to the x-ray imaging system of the utility model embodiment.
Wherein, appended drawing reference is as follows:
Specific embodiment
In order to which the technical solution of the utility model and advantage is more clearly understood, below in conjunction with drawings and the embodiments,
The present invention will be further described in detail.It should be appreciated that the specific embodiments described herein are only used to illustrate
Property illustrate the utility model, be not used to limit the protection scope of the utility model.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to the utility model
Scheme be illustrated.A large amount of details is only configured to be used to help understand the embodiment of the utility model in embodiment.But
It is it is obvious that the technical solution of the utility model can be not limited to these details when realizing.In order to avoid unnecessarily obscuring
The embodiment of the utility model, some embodiments are not described meticulously, but only give frame.Hereinafter, " packet
Include " refer to " including but not limited to ", " according to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the Chinese
The speech habits of language, when being hereinafter not specifically stated the quantity of an ingredient, it is meant that the ingredient can be one can also be with
It is multiple, or can be regarded as at least one.
Herein presented " X-ray generating assembly " means the various devices that can generate X-ray.Such as, but not limited to,
X-ray generating assembly can be bulb or bulb and the combination of light concentrator etc..
Fig. 1 is the analysis schematic diagram according to the heel effect of the utility model embodiment.
In Fig. 1, the anode 11 comprising anode target surface 12 is usually made of refractory metal.The transmitting bombardment anode of cathode 10
The high-power electron beam of target surface 12.High-power electron beam refers to accelerated electronics, generally has very high energy density.High energy electron
Beam is a significant slowdown during throwing anode target surface 12 into.According to electromagnetic principles, the charged particle of abrupt deceleration can radiation electric
Magnetic wave, therefore can produce X-ray.
Based on heel effect, the X-ray for the angle deflection cathode 10 that compares, angle tends to the X-ray of anode 11 in sun
It is more that distance is walked in pole target surface 12, thus can more be absorbed.
Citing, as seen from Figure 1, in X-ray F1, X-ray F2, X-ray F3 and the X-ray F4 that high-power electron beam generates, X
Ray F1 angle is most biased to cathode 10, and X-ray F4 angle is most biased to anode 11.The X-ray that compares F1, X-ray F2 and X-ray
F3, X-ray F4 walked in anode target surface 12 apart from longest, therefore X-ray F4 is more absorbed, and the spoke of X-ray F4 is caused
Intensity is penetrated to be reduced by up to.Similarly, it is most short to walk distance in anode target surface 12 by X-ray F1, therefore X-ray F1 is at least absorbed,
The radiation intensity of X-ray F1 is caused to decline minimum.
In Fig. 1, X-ray radiation intensity fall puts in order from big to small are as follows: X-ray F4；X-ray F3；X is penetrated
Line F2；X-ray F1.That is: more closer to the X-ray radiation intensity decline of anode 11.
Current x-ray system for filtering the X-ray filter of grenz ray usually also comprising (being referred to as intrinsic
Filter), this X-ray filter is usually made of sheet metal in homogeneous thickness (for example, copper or aluminium), from anode target surface 12
Each X-ray walking apart from essentially identical in X-ray filter that transmitting comes.
It is found by the applicant that: if broken through in the prior art, this X-ray filter thickness is uniform, walks apart from essentially identical
Thinking set, using at the cathode X-ray walk distance and be greater than and filtered close to the X-ray that X-ray at anode walks distance
Device, can be balanced because of X-ray radiation intensity inconsistence problems caused by heel effect, and thus significantly improves subsequent imaging
Quality.
The utility model embodiment proposes a kind of X-ray generating assembly, can overcome or reduce heel effect to imaging
The adverse effect of effect.
Fig. 2 is the structure chart according to the X-ray generating assembly of the utility model embodiment.
As shown in Fig. 2, X-ray generating assembly 100 includes:
Anode 11, anode 11 include anode target surface 12；
Cathode 10, for emitting bombardment anode target surface 12 to generate the high-power electron beam of X-ray；
X-ray filter 20, for filtering X-ray；
Wherein X-ray filter 20 includes the second part 22 of the first part 21 and close anode 11 close to cathode 10,
The thickness of first part 21 is greater than the thickness of second part 22.
20 one side of X-ray filter plays the role of filtering the intrinsic filter of grenz ray, on the other hand can also be
The inconsistent X-ray of radiation intensity caused by weighing because of heel effect.
Specifically, the second part 22 close to anode 11 is compared with bigger thickness close to the first part 21 of cathode 10
Degree, thus close to cathode 10 first part 21 compare close to anode 11 second part 22 have longer X-ray walk away from
From so first part 21 can more absorb X-ray compared to second part 22.
As shown in Fig. 2, the thickness of first part 21 is greater than the thickness of second part 22, therefore the X of angle deflection cathode 10
X-ray F4 the walking in second part 22 walked distance and be greater than angle deflection anode 11 of ray F1 in first portion 21
Distance.So X-ray F1 compares X-ray F4 with bigger radiation intensity decline in X-ray filter 20.It considers
Before entering X-ray filter 20, because of heel effect, X-ray F1 is strong compared to radiation of the X-ray F4 in anode target surface 12
Degree decline is less.Therefore, X-ray filter 20 can be balanced because caused by heel effect between X-ray F1 and X-ray F4
Radiation intensity inconsistence problems, and thus significantly improve subsequent image quality.
In one embodiment, X-ray generating assembly 100 further include: light concentrator 51, for being blocked based on preset range
The X-ray filtered through X-ray filter 20.Using the effect of blocking of light concentrator 51, filtering further can be executed to X-ray,
Subsequent image quality can be improved.
In one embodiment, along from first part 21 to the direction of second part 22, the thickness of X-ray filter 20
Spend monotone decreasing.
For example, in X-ray filter 20 shown in Fig. 2, along from first part 21 to the direction of second part 22, according to
It is secondary to be disposed with first part 21, the first middle section 23, the second middle section 24 and second part 22.Wherein, wherein first
21 thickness is divided to walk distance greater than the X-ray of the first middle section 23；The thickness of first middle section 23 is greater than among second
The thickness of part 24；The thickness of second middle section 24 is greater than the thickness of second part 22.Therefore, the X-ray of first part 21
It walks distance and is longer than the X-ray of the first middle section 23 and walk distance；The X-ray of first middle section 23 walks distance and is longer than
The X-ray of two middle sections 24 walks distance；The X-ray of second middle section 24, which walks distance and is longer than the X of second part 22, penetrates
Line walks distance.
Therefore, along from first part 21 to the direction of second part 22, X-ray walked in X-ray filter 20 away from
From gradually successively decreasing and uptake is gradually successively decreased, thus the radiation of good balanced whole X-rays between cathode 10 and anode 11
Intensity, and thus further increase subsequent image quality.In Fig. 2, across the radiation intensity of the X-ray F1 of first part 21
Decline, the radiation intensity decline greater than the X-ray F2 across the first middle section 23.X-ray across the first middle section 23
The radiation intensity of F2 declines, the radiation intensity decline greater than the X-ray F3 across the second middle section 24.Across the second middle part
The radiation intensity decline for dividing 24 X-ray F3, the radiation intensity decline greater than the X-ray F4 across second part 22.Therefore, X
Ray F1, X-ray F2, X-ray F3 and X-ray F4 can be penetrated because of radiation intensity inconsistence problems caused by heel effect by X
Line filter 20 is good balanced.
X-ray filter 20 can be embodied by numerous embodiments.
For example, in one embodiment, X-ray filter 20 includes the sheet metal with stepped construction (for example, copper
Or aluminium).Preferably, stepped construction has right-angled trapezium section or right angled triangle section.By implement right-angled trapezium section or
Right angled triangle section, the variation tendency that the variation tendency of stepped construction thickness can walk distance with X-ray are closely related.
X-ray generating assembly shown in Fig. 2 can be embodied based on numerous embodiments.For example, can be in X-ray ball
X-ray filter is set in pipe, to execute filtering to X-ray in X-ray bulb.It for another example, can also be outside X-ray bulb
X-ray filter is set, to execute filtering to X-ray except X-ray bulb.
The utility model embodiment proposes a kind of X-ray bulb, can overcome or reduce heel effect to imaging effect
Adverse effect.
Fig. 3 is the structure chart according to the X-ray bulb of the utility model embodiment.
In Fig. 3, X-ray bulb 90 includes:
Shell 91, shell 91 have cavity 92；
Anode 11 is arranged in cavity 92, and anode 11 includes anode target surface 12；
Cathode 10 is arranged in cavity 92, for emitting bombardment anode target surface 12 to generate the high-power electron beam of X-ray；
X-ray filter 20 is arranged in cavity 92, for filtering X-ray；
Wherein X-ray filter 20 includes the second part 22 of the first part 21 and close anode 11 close to cathode 10,
The thickness of first part 21 is greater than the thickness of second part 22.
20 one side of X-ray filter in cavity 92 plays the role of filtering the intrinsic filter of grenz ray, another party
Face can be inconsistent because of radiation intensity caused by heel effect with equilibrium X-ray.
Specifically, the second part 22 close to anode 11 is compared with bigger thickness close to the first part 21 of cathode 10
Degree, thus close to cathode 10 first part 21 compare close to anode 11 second part 22 have longer X-ray walk away from
From so first part 21 can more absorb X-ray compared to second part 22.
As shown in figure 3, the thickness of first part 21 is greater than the thickness of second part 22, therefore the X of angle deflection cathode 10
X-ray F4 the walking in second part 22 walked distance and be greater than angle deflection anode 11 of ray F1 in first portion 21
Distance.So X-ray F1 compares X-ray F4 with bigger radiation intensity decline in X-ray filter 20.It considers
Before entering X-ray filter 20, because of heel effect, X-ray F1 is strong compared to radiation of the X-ray F4 in anode target surface 12
Degree decline is less.Therefore, X-ray filter 20 can be balanced because caused by heel effect between X-ray F1 and X-ray F4
Radiation intensity inconsistence problems, and thus significantly improve subsequent image quality.
In one embodiment, along from first part 21 to the direction of second part 22, the thickness of X-ray filter 20
Spend monotone decreasing.
For example, in X-ray filter 20 shown in Fig. 3, along from first part 21 to the direction of second part 22, according to
It is secondary to be disposed with first part 21, the first middle section 23, the second middle section 24 and second part 22.Wherein, wherein first
21 thickness is divided to walk distance greater than the X-ray of the first middle section 23；The thickness of first middle section 23 is greater than among second
The thickness of part 24；The thickness of second middle section 24 is greater than the thickness of second part 22.Therefore, the X-ray of first part 21
It walks distance and is longer than the X-ray of the first middle section 23 and walk distance；The X-ray of first middle section 23 walks distance and is longer than
The X-ray of two middle sections 24 walks distance；The X-ray of second middle section 24, which walks distance and is longer than the X of second part 22, penetrates
Line walks distance.
Therefore, along from first part 21 to the direction of second part 22, X-ray walked in X-ray filter 20 away from
From gradually successively decreasing and uptake is gradually successively decreased, thus the radiation of good balanced whole X-rays between cathode 10 and anode 11
Intensity, and thus further increase subsequent image quality.In Fig. 3, across the radiation intensity of the X-ray F1 of first part 21
Decline, the radiation intensity decline greater than the X-ray F2 across the first middle section 23.X-ray across the first middle section 23
The radiation intensity of F2 declines, the radiation intensity decline greater than the X-ray F3 across the second middle section 24.Across the second middle part
The radiation intensity decline for dividing 24 X-ray F3, the radiation intensity decline greater than the X-ray F4 across second part 22.Therefore, X
Ray F1, X-ray F2, X-ray F3 and X-ray F4 can be penetrated because of radiation intensity inconsistence problems caused by heel effect by X
Line filter 20 is good balanced.
The X-ray filter 20 in cavity 92 can be embodied by numerous embodiments.
For example, in one embodiment, X-ray filter 20 includes the sheet metal with stepped construction (for example, copper
Or aluminium).Preferably, stepped construction has right-angled trapezium section or right angled triangle section.By implement right-angled trapezium section or
Right angled triangle section, the variation tendency that the variation tendency of stepped construction thickness can walk distance with X-ray are closely related.
Fig. 4 is the first demonstrative structure figure according to the X-ray bulb of the utility model embodiment.
In Fig. 4, X-ray bulb 90 includes:
Shell 91, shell 91 have cavity 92；
Anode 11 is arranged in cavity 92, and anode 11 includes anode target surface 12；
Cathode 10 is arranged in cavity 92, for emitting bombardment anode target surface 12 to generate the high-power electron beam of X-ray；
The sheet metal 30 of stepped construction, is arranged in cavity 92, for filtering X-ray, the metal foil of the stepped construction
Piece 30 has right-angled trapezium section；
The oblique waist of the right-angled trapezium section moves closer to anode 11 along direction shown in dotted arrow S.That is, along dotted line
The thickness in direction shown in arrow S, the sheet metal 30 of stepped construction gradually successively decreases.
In Fig. 4, X-ray F1, X-ray F2, X-ray F3 and X-ray F4 enter from the straight waist of right-angled trapezium section, and
Oblique waist is penetrated to go out.Since oblique waist moves closer to anode 11, X-ray F1, X-ray along direction shown in dotted arrow S
Gradually successively decrease and uptake is gradually successively decreased by distance for F2, X-ray F3 and X-ray F4 walking in sheet metal 30, therefore the layer
The radiation intensity of the good balanced whole X-rays between cathode 10 and anode 11 of the sheet metal 30 of stack structure, and thus into
One step improves subsequent image quality.
Fig. 5 is the second demonstrative structure figure according to the X-ray bulb of the utility model embodiment.
In Fig. 5, X-ray bulb 90 includes:
Shell 91, shell 91 have cavity 92；
Anode 11 is arranged in cavity 92, and anode 11 includes anode target surface 12；
Cathode 10 is arranged in cavity 92, for emitting bombardment anode target surface 12 to generate the high-power electron beam of X-ray；
The sheet metal 40 of stepped construction, is arranged in cavity 92, for filtering X-ray, the metal foil of the stepped construction
Piece 40 has right angled triangle section；
The bevel edge of the right angled triangle section moves closer to anode 11 along direction shown in dotted arrow S.That is, along void
The thickness in direction shown in line arrow S, the sheet metal 40 of stepped construction gradually successively decreases.
In Fig. 5, X-ray F1, X-ray F2, X-ray F3 and X-ray F4 enter from the straight flange of right angled triangle section, wear
Saturating bevel edge is gone out.Since the bevel edge of right angled triangle section moves closer to anode 11 along direction shown in dotted arrow S, X is penetrated
Gradually successively decrease and uptake is gradually passed by distance for line F1, X-ray F2, X-ray F3 and X-ray F4 walking in sheet metal 40
Subtract, thus the radiation intensity of good balanced whole X-rays between cathode 10 and anode 11, and thus further increase subsequent
Image quality.
It is practical new to this above using the X-ray filter with right-angled trapezium section or right angled triangle section as example
Type embodiment carries out exemplary description, it will be appreciated by those of skill in the art that this description is only exemplary, and does not have to
In the protection scope for limiting the utility model embodiment.
Based on foregoing description, the utility model embodiment also proposed a kind of x-ray imaging system.The x-ray imaging
System includes: X-ray generating assembly 100 and flat panel detector as shown in Figure 2.
Wherein, X-ray generating assembly 100 includes: anode 11, and anode 11 includes anode target surface 12；Cathode 10, for emitting
Anode target surface 12 is bombarded to generate the high-power electron beam of X-ray；X-ray filter 20, for filtering X-ray；Wherein X-ray mistake
Filter 20 includes the first part 21 close to cathode 10 and the second part 22 close to anode 11, and the thickness of first part 21 is greater than
The thickness of second part 22.
Flat panel detector, for detecting the X-ray filtered through the X-ray filter 20 in X-ray generating assembly 100 with life
At image.
In one embodiment, in the x-ray imaging system, along from first part 21 to the side of second part 22
To the thickness monotone decreasing of X-ray filter 20.Preferably, the X-ray filter 20 in X-ray generating assembly 100 includes tool
There is the sheet metal of stepped construction.It is highly preferred that stepped construction has right-angled trapezium section or right angled triangle section, etc..
In one embodiment, which further comprises light concentrator；It is arranged in X-ray filter 20
Between flat panel detector.X-ray only across the gap of light concentrator can just reach flat panel detector, and be detected by plate
Device detects imaging.Therefore, the utility model embodiment passes through the gap filtration of light concentrator, further directed to X-ray
Filtering is executed, the image quality of flat panel detector is improved.
Fig. 6 is the demonstrative structure figure according to the utility model x-ray imaging system.
As shown in fig. 6, x-ray imaging system 80 includes X-ray bulb 90 and flat panel detector 60.Those skilled in the art
Member can select various flat panel detectors according to the actual application, describe herein without expansion.
X-ray bulb 90 includes: shell 91, and shell 91 has cavity 92；Anode 11 is arranged in cavity 92, anode 11
Include anode target surface 12；Cathode 10 is arranged in cavity 92, for emitting bombardment anode target surface 12 to generate the high energy of X-ray
Electron beam；The sheet metal 40 of stepped construction, is arranged in cavity 92, for filtering X-ray.
The sheet metal 40 of stepped construction serves as the X-ray filter for filtering X-ray.Moreover, the stepped construction
Sheet metal 40 have right angled triangle section, the bevel edge of the right angled triangle section along direction shown in dotted arrow S gradually
Close to anode 11.That is, the sheet metal 40 of stepped construction gradually successively decreases along direction thickness shown in dotted arrow S.
The x-ray imaging system 80 further comprises: being arranged in the sheet metal 40 and flat panel detector 60 of stepped construction
Between light concentrator 51.X-ray only across the gap of light concentrator 51 can just reach flat panel detector 60.
In Fig. 6, the transmitting of cathode 10 bombards anode target surface 12 to generate the high-power electron beam of X-ray.High-power electron beam exists
Be a significant slowdown during throwing anode target surface 12 into and generate X-ray F1, X-ray F2, X-ray F3, X-ray F4, X-ray F5 and
X-ray F6.Based on heel effect, the X-ray for the angle deflection cathode 10 that compares, angle tends to the X-ray of anode 11 in sun
It is more that distance is walked in pole target surface 12, thus can more be absorbed.Therefore, declined based on heel effect X-ray radiation intensity
Amplitude puts in order from big to small are as follows: X-ray F4；X-ray F3；X-ray F6；X-ray F5；X-ray F2；X-ray F1.
X-ray F4, X-ray F3, X-ray F6, X-ray F5, X-ray F2 and X-ray F1 are respectively from right angled triangle section
Straight flange enter, penetrate bevel edge and go out.Since the bevel edge of right angled triangle section is gradually leaned on along direction shown in dotted arrow S
Nearly anode 11, X-ray F1, X-ray F2, X-ray F5, X-ray F6, X-ray F3 and X-ray F4 walking in sheet metal 30
Distance is gradually successively decreased and uptake is gradually successively decreased, thus the spoke of good balanced whole X-rays between cathode 10 and anode 11
Intensity is penetrated, and thus further increases subsequent image quality.
After the radiation intensity proportionality action of sheet metal 40, X-ray F5 and X across the gap of light concentrator 51 are penetrated
Line F6 reaches flat panel detector 60, and is based on detection X-ray F5 and X-ray F6 by flat panel detector 60 and is imaged.
Moreover, x-ray imaging system 80 can be implemented are as follows: X-ray rabat machine；X-ray stomach and intestine machine；The operation of X-ray C arm
Machine；X-ray mammary machine, etc..
The above demonstration describes the exemplary embodiment of x-ray imaging system 80, and those skilled in the art will be appreciated that
It arrives, this description is only exemplary, is not used to limit the protection scope of the utility model embodiment.
In structure shown in Fig. 6, the sheet metal of stepped construction is embodied as right angled triangle section.Art technology
Personnel are it is to be appreciated that this description is only exemplary, in fact, the sheet metal of stepped construction can also have right angle terraced
The other embodiments such as shape section, the utility model embodiment is to this and is not limited.
The utility model in the optical path of X-ray by being arranged X-ray filter to different propagation distance in X-ray beam
Light realizes compensated distance, those skilled in the art will readily recognize that, which can be arranged on X-ray hair
Any position of raw component.For example, as above illustrated in conjunction with attached drawing, X-ray filter can be arranged in bulb.It can
Selection of land, X-ray filter can also be arranged in light concentrator or be arranged between bulb and light concentrator, the utility model
It is not limited.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in
Within the protection scope of the utility model.
Claims (7)
1. a kind of X-ray generating assembly (100) characterized by comprising
Anode (11), the anode (11) include anode target surface (12)；
Cathode (10), for emitting the high-power electron beam for bombarding the anode target surface (12) to generate X-ray；
X-ray filter (20), for filtering the X-ray；
Wherein the X-ray filter (20) includes close to the first part (21) of the cathode (10) and close to the anode
(11) second part (22), the thickness of the first part (21) are greater than the thickness of the second part (22).
2. X-ray generating assembly (100) according to claim 1, which is characterized in that further include:
Light concentrator (51), for blocking the X-ray filtered through the X-ray filter (20) based on preset range.
3. X-ray generating assembly (100) according to claim 1, which is characterized in that along from the first part (21)
To the direction of the second part (22), the thickness monotone decreasing of the X-ray filter (20).
4. X-ray generating assembly (100) according to claim 3, which is characterized in that X-ray filter (20) packet
Containing the sheet metal with stepped construction.
5. X-ray generating assembly (100) according to claim 4, which is characterized in that the stepped construction has right angle ladder
Shape section (30) or right angled triangle section (40).
6. a kind of x-ray imaging system (80), which is characterized in that sent out including X-ray according to any one of claims 1 to 5
Raw component (100) and flat panel detector (60)；
The flat panel detector (60), for detecting the X-ray of X-ray generating assembly (100) generation to generate image.
7. x-ray imaging system (80) according to claim 6, which is characterized in that the x-ray imaging system (80) from
It is selected in following group:
X-ray rabat machine；X-ray stomach and intestine machine；X-ray C arm surgical engine；X-ray mammary machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821234678.6U CN208861929U (en) | 2018-08-01 | 2018-08-01 | A kind of X-ray generating assembly and x-ray imaging system |
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| CN201821234678.6U CN208861929U (en) | 2018-08-01 | 2018-08-01 | A kind of X-ray generating assembly and x-ray imaging system |
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| CN208861929U true CN208861929U (en) | 2019-05-14 |
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| CN201821234678.6U Active CN208861929U (en) | 2018-08-01 | 2018-08-01 | A kind of X-ray generating assembly and x-ray imaging system |
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