CN107753052A - A kind of x-ray imaging dynamic contrast detection plate - Google Patents
A kind of x-ray imaging dynamic contrast detection plate Download PDFInfo
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Abstract
The invention discloses a kind of x-ray imaging dynamic contrast detection plate, including ladder die body and arcuation die body；Ladder die body is solid hierarchic structure；Ladder die body includes multiple ladders, and is respectively provided with a raised positioning key in same one end of each ladder；Arcuation die body is the solid ladder structure of right angle that inclined-plane is cambered surface；The bottom surface of arcuation die body sets the positioning spline of a depression to match with positioning key；Arcuation die body is detachably arranged on any ladder of ladder die body by positioning spline and positioning key.Therefore, using detection plate provided by the invention, realize the independent assortment of arcuation die body and ladder die body in the range of gradation of image, meet the image contrast requirement of different operating object, the present invention is by setting the arcuation die body that inclined-plane is cambered surface simultaneously, realize the contrast subsection gradual in the range of different contrast to contrast, realize the test of dynamic contrast change resolution capability and compare, improve the imaging precision of image.
Description
Technical field
The present invention relates to x-ray imaging field, more particularly to a kind of x-ray imaging dynamic contrast detection plate.
Background technology
(CR is imaged in Digital：Computed Radiography；DR：Digital Radiography) imaging system
In system, the intensity profile scope and resolving power of image determine the resolving effect of image.For the gray scale point of macroscopic examination image
Cloth scope and resolution capability are, it is necessary to specifically be imaged die body (detection plate).
At present, the mechanism on imaging die body at home and abroad has carried out many related researchs to company, has had
Ready-made imaging die body, such as UAB low contrasts experiment apparatus, IEC die bodys, TORCDR die bodys, German QUART companies
2.0 low contrasts of CDRAD-details die body etc., specially UAB low contrasts experiment apparatus have 2 6.1mm thickness aluminium target discs, each
Thick aluminium target disc has 9Circular hole, contrast has 18；IEC die bodys have 19Circular hole, contrast model
0.5~20% is enclosed, contrast there are 19；TORCDR die bodys have 34Circular hole, contrast has 34；German QUART
2.0 low contrasts of CDRAD of company-details die body has 15 holes, and contrast has 15.Although they have respective excellent
Point and shortcoming, but the above-mentioned following defect of imaging die body generally existing, are such as concentrated mainly in the comparison of low contrast, and typically
Only provide several, tens separation contrasts to be tested and compared, contrast range is fixed and scope is smaller, i.e., existing
Above-mentioned imaging die body be fixed structure, it is impossible to efficient combination is carried out in the range of gradation of image so that above-mentioned imaging die body
In use, due to fixed contrast number and contrast range, the imaging contrast of part operation object can only be met
Degree requires, there is significant limitation.
The content of the invention
, can be in the range of gradation of image it is an object of the invention to provide a kind of x-ray imaging dynamic contrast detection plate
Effectively combined, meet the image contrast requirement of different operating object, while can also realize that dynamic contrast changes
The test of resolution capability and compare, improve the precision of x-ray imaging.
To achieve the above object, the invention provides following scheme：
A kind of x-ray imaging dynamic contrast detection plate, the x-ray imaging dynamic contrast detection plate include joggle die
Body and arcuation die body；
The ladder die body is solid hierarchic structure；The ladder die body includes multiple ladders, and in each rank
Same one end of ladder is respectively provided with a raised positioning key；
The arcuation die body is the solid ladder structure of right angle that inclined-plane is cambered surface；The bottom surface of the arcuation die body sets one
The positioning spline of the individual depression to match with the positioning key；
The arcuation die body is detachably arranged in the ladder die body by the positioning spline and the positioning key
On any ladder.
Optionally, the cambered surface and the most short vertical range of the bottom surface of the arcuation die body are 1mm；The cambered surface and institute
The most long vertical range for stating the bottom surface of arcuation die body is 30mm.
Optionally, the quantity of the ladder of the ladder die body is 10, and the difference in height of the adjacent ladder is 5mm.
Optionally, the short side of the ladder is 20mm；The long side of the ladder is 220mm.
Optionally, the x-ray imaging dynamic contrast detection plate also includes contrast thin plate；The contrast thin plate water
Flat is fixed on above any ladder of the ladder die body, and the bottom surface of the contrast thin plate and the ladder die body
It is parallel.
Optionally, the x-ray imaging dynamic contrast detection plate also includes support frame；The contrast thin plate passes through institute
State being fixed on any ladder of the ladder die body for support frame level.
Optionally, the ladder die body, the arcuation die body, the material of the contrast thin plate are aluminum alloy materials.
Optionally, the number of the contrast thin plate is one or more.
Optionally, the contrast gauge of sheet is 0.01mm, 0.008mm, 0.006mm or 0.002mm；The contrast
Spend the length of thin plate and the length of the wide long side for being respectively less than the ladder, and the length of the contrast thin plate and the contrast thin plate
It is wide equal.
Optionally, a length of 220mm of the bottom surface of the arcuation die body；The bottom surface of the arcuation die body it is a width of
20mm；A length of 20mm of the upper bottom surface of the arcuation die body；A width of 20mm of the upper bottom surface of the arcuation die body；The arcuation mould
The radius of the cambered surface of body is 680mm；A height of 30mm of the arcuation die body.
According to specific embodiment provided by the invention, the invention discloses following technique effect：
The invention provides a kind of x-ray imaging dynamic contrast detection plate, including ladder die body and arcuation die body；It is described
Ladder die body is solid hierarchic structure；The ladder die body includes multiple ladders, and equal in same one end of each ladder
One raised positioning key is set；The arcuation die body is the solid ladder structure of right angle that inclined-plane is cambered surface；The arcuation die body
Bottom surface set a depression to match with the positioning key positioning spline；The arcuation die body passes through the positioning key
Groove and the positioning key are detachably arranged on any ladder of the ladder die body.Therefore, provided using the present invention
Detection plate, the arcuation mould in the range of gradation of image is realized by the positioning spline of arcuation die body and the positioning key of ladder die body
The independent assortment of body and ladder die body, meet the image contrast requirement of different operating object, while the present invention is oblique by setting
Face is the arcuation die body of cambered surface, realizes the contrast subsection gradual in the range of different contrast and contrasts, realizes dynamic contrast
Change the test of resolution capability and compare, improve the imaging precision of image.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the three-dimensional structure diagram of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 2 is the top view of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 3 is the front view that arcuation of embodiment of the present invention die body and ladder die body combine；
Fig. 4 is the three-dimensional structure diagram of the ladder die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 5 is the front view of the ladder die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 6 is the top view of the ladder die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 7 is the front view of the arcuation die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 8 is the top view of the arcuation die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention；
Fig. 9 positions test comparison degree principle schematic of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
, can be in the range of gradation of image it is an object of the invention to provide a kind of x-ray imaging dynamic contrast detection plate
Effectively combined, meet the image contrast requirement of different operating object, while can also realize that dynamic contrast becomes
Change the test of resolution capability and compare, improve the precision of x-ray imaging.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Before being described in further detail to the present invention, first the central principle of the lower present invention of explanation and with phase of the present invention
Hold inside the Pass.
The core technology principle of the present invention is arcuation die body of the superposition with inclined-plane for cambered surface feature, shape on ladder die body
Into different contrast ranges, increase the gradual change scope of contrast, and also can combination producing low contrast, and by being superimposed not
Stack pile, contrast thin plate can further form extremely low contrast.
CR operation principle：The first step, X-ray exposure make IP Image Plates produce image latent image；Second step, by IP Image Plates
It is sent into laser scanner and is scanned, the latent image of IP Image Plates is transformed into visible ray in scanner after being intensified, after reading
It is transformed into electronic signal, transmits to computer and come out Digital Image Display, also can print out and meet the laser phase that diagnosis requires
Preserved in piece, or deposit tape, disk and CD.
CR system architectures are relatively easy, are easily installed.IP Image Plates are applicable on existing X-ray production apparatus, are directly realized by
The digitlization of common radiological installation, improves operating efficiency, reduces patient's radioactive dose, safer, is brought for hospital very big
Social benefit and economic benefit.Display of the CR systems to bone structure, articular cartilage and soft tissue be substantially better than traditional X pieces into
Picture；It is easy to show vertical diaphragm structure, such as blood vessel and tracheae；The recall rate that Lung neoplasm venereal disease becomes is imaged higher than Traditional x-ray；Seeing
Examine the calcic such as intestinal tube pneumatosis, pneumoperitoneum and calculus lesion and be better than Traditional x-ray image；It is small in display stomach for double contrast gastrointestinal study
Area, in minute lesion and intestinal mucosa pleat, CR systems (digital GI) are better than Traditional x-ray image.
DR systems：By digitized video collection plate, (detecting plate, Flat Pannel Dector, can be divided into regard to its internal structure
CCD, non-crystalline silicon, amorphous selenium are several), special filter line device BUCKY digital pictures obtain control X-ray photograph system digital picture work
Stand composition.
The operation principle of DR systems is in non-crystalline silicon Image Plate, and X ray is changed into visible ray through fluorescent screen, then through TFT
Film crystal circuit is converted into electronic signal by matrix pixel, transmits to computer, is shown image by monitor,
PACS network can be transferred into.DR technologies can be divided into indirect conversion and directly two classes of conversion from X-ray detector image-forming principle.
The intensifying screen that the indirect conversion of the first generation uses adds the CCD (charge-coupled device) that optical lens couples to obtain Digitized X-ray
Image.The second generation is to use direct switch technology, i.e. flat panel detector.
Contrast：Contrast refer to light and shade region in piece image it is most bright it is white and most dark it is black between different brightness layers
The measurement of level, that is, refer to the size of piece image gray scale contrast.The ratio of picture B＆W, that is, the graded bedding from black to white
It is secondary.Contrast is bigger, and the gradual change level from black to white is more, and so as to which color representation is abundanter, resolution capability is stronger.
Fig. 1 is the three-dimensional structure diagram of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention.
As shown in figure 1, the x-ray imaging dynamic contrast detection plate provided by the invention includes：Ladder die body 1, arc
Shape die body 2 and contrast thin plate 3.
The ladder die body 1 is solid hierarchic structure.The ladder die body 1 includes multiple ladders 101, and in each institute
The same one end for stating ladder 101 is respectively provided with a raised positioning key 102.
The arcuation die body 2 is the solid ladder structure of right angle that inclined-plane is cambered surface.The bottom surface of the arcuation die body 2 is set
The positioning spline 201 of one depression to match with the positioning key 102.
The arcuation die body 2 is detachably arranged in the ladder by the positioning spline 201 and the positioning key 102
On any ladder 101 of die body 1.
The contrast thin plate 3 is horizontal to be fixed on any ladder 101 of the ladder die body 1, and described right
It is more parallel with the bottom surface of the ladder die body 1 than degree thin plate 3.
Further, the x-ray imaging dynamic contrast detection plate also includes support frame.
The contrast thin plate 3 passes through the horizontal any ladder 101 for being fixed on the ladder die body 1 of support frame
On, and the contrast thin plate 3 is parallel with the bottom surface of the ladder die body 1.
The number of the contrast thin plate 3 is one or more.The thickness of the contrast thin plate 3 is far smaller than described
The height of ladder die body 1 and the arcuation die body 2.
The ladder die body 1, the arcuation die body 2, the material of the contrast thin plate 3 are aluminum alloy materials.
The arcuation die body 2 or/and contrast thin plate 3 are arranged on any ladder 101 of the step phantom 1.
Fig. 2 is the top view of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention.
As shown in Fig. 2 when x-ray bombardment, contrast thin plate 3 is arrived first at, reaches arcuation die body 2 and rank successively afterwards
Terraced die body 1.The length of the bottom surface of arcuation die body 2 and the long side L1 of the ladder 101 equal length；The arcuation die body 2
The wide and short side L2 of the ladder 101 equal length of bottom surface.The length of the contrast thin plate 3 and the wide respectively less than rank
The long side L1 of ladder 101 length.
Fig. 3 is the front view that arcuation of embodiment of the present invention die body and ladder die body combine.
As shown in figure 3, the positioning key 102 and the positioning spline 201 be used for by the arcuation die body 2 connect and fix in
On the ladder die body 1.The arcuation die body 2 is detachably arranged in by the positioning spline 201 and the positioning key 102
On any ladder 101 of the ladder die body 1.
Fig. 4 is the three-dimensional structure diagram of the ladder die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention.
As shown in figure 4, the ladder die body 1 includes ladder 101 and positioning key 102.The ladder die body 1 sets 10 ranks
Ladder 101.The bottom surface of ladder die body 1 refer to each ladder 101 project it is common where plane, the corresponding long side L1 of ladder refers to each
Ladder takes outer long side or each ladder to take inner side long side.
Fig. 5 is the front view of the ladder die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention.
As shown in figure 5, the difference in height Δ h1 of the adjacent ladder 101 is 5mm, the height H1 of the ladder die body 1 is institute
The maximum gauge of ladder die body 1 is stated, h11 is the height of the one of ladder of plummer, and h12 is the height of another ladder of plummer
Degree, the bottom surface of the ladder die body 1 are the face contacted with ground.Fig. 6 is x-ray imaging dynamic contrast of the embodiment of the present invention
The top view of the ladder die body of detection plate, numbering is corresponding with Fig. 4 in figure.
Fig. 7 is the front view of the arcuation die body of x-ray imaging dynamic contrast detection plate of the embodiment of the present invention.
As shown in fig. 7, arcuation die body 2 includes the positioning spline 201 of depression.The height H2 of the arcuation die body 2 is described
The maximum gauge of arcuation die body 2, positioning spline 201 are arranged on the bottom surface corresponding to the most thickness end of the arcuation die body 2.Institute
It is 30mm to state cambered surface and the most long vertical range Δ h2 of the bottom surface of the arcuation die body；The cambered surface and the arcuation die body 2
The most short vertical range Δ h3 of bottom surface be 1mm.Fig. 8 is x-ray imaging dynamic contrast detection plate of the embodiment of the present invention
The top view of arcuation die body, numbering is corresponding with Fig. 7 in figure.
The design parameter of ladder die body provided in an embodiment of the present invention, arcuation die body and contrast thin plate：：
(1) ladder die body
The length of ladder die body bottom surface is 200mm, and the width of ladder die body bottom surface is 220mm, and the height of ladder die body is
50mm, 10 ladders are set on ladder die body.The difference in height of two neighboring ladder is 5mm.The short side of ladder is 20mm；Ladder
Long side be 220mm.The ladder die body provide contrast altitude range be 5mm~50mm, to specific area for 20mm ×
200mm, (10 rank contrast) is used for high-contrast.
A raised positioning key is respectively provided with same one end of each ladder, is coordinated with arcuation die body positioning spline, is realized
Positioning.
This ladder die body when in use, can also use side as bottom surface, and now the length of ladder die body bottom surface is
50mm, the width of ladder die body bottom surface is 220mm, and the height of ladder die body is 200mm, and 10 identicals are set on ladder die body
Ladder.The difference in height of two neighboring ladder is 20mm, and this step phantom is used for more high-contrast ladder and uses (10 rank contrast).
(2) arcuation die body
A length of 220mm of the bottom surface of the arcuation die body；A width of 20mm of the bottom surface of the arcuation die body；The arc
A length of 20mm of the upper bottom surface of shape die body；A width of 20mm of the upper bottom surface of the arcuation die body；The cambered surface of the arcuation die body
Radius is 680mm；A height of 30mm of the arcuation die body.The most thick end bottom design positioning spline of arcuation die body, can be with rank
The positioning key of terraced die body, which cooperates, realizes positioning.
Cambered surface and the most short vertical range of the bottom surface of arcuation die body are 1mm；The bottom surface of cambered surface and arcuation die body is most
Long vertical range is 30mm, i.e., in the horizontal direction in the range of 200mm, the continuous gradual change of vertical height is the arcuation die body
1mm~30mm, total height difference is 29mm, realizes contrast test, contrast height change scope is 1mm~30mm, contrast
Gradual change area is 20mm × 200mm, realizes contrast consecutive variations.
(3) contrast thin plate
Contrast thin plate, totally four, size is identical, is 100mm × 100mm, thickness be respectively 0.01mm,
0.008mm、0.006mm、0.002mm。
I.e. four contrast thin plates are respectively：
Area 100mm × 100mm, thickness 0.002mm.
Area 100mm × 100mm, thickness 0.006mm.
Area 100mm × 100mm, thickness 0.008mm.
Area 100mm × 100mm, thickness 0.010mm.
Four contrast thin plates can be overlapped mutually use, and totally 16 combinations, thickness are discrete from 0.002mm~0.026mm
Change, realizes 16 contrasts.
In use, contrast thin plate is placed on topmost detection plate provided in an embodiment of the present invention, and ladder die body is put
Arcuation die body can be placed on bottom, the ladder of ladder die body, can so realize contrast in a certain contrast range
The observation of gradual change.In addition, in order to observe the contrast gradual change of different range, it can move and put on the different ladders of ladder die body
Put arcuation die body.Simultaneously in order to observe extremely low contrast, the combination of contrast thin plate, observation contrast change can also be used.
The principle analysis of detection plate provided in an embodiment of the present invention：
Fig. 9 positions test comparison degree principle schematic of the embodiment of the present invention.As shown in figure 9, S represents the focus of X-ray machine, S is arrived
The distance of circular arc is arc radius R=680mm, so ensures that X ray is impinged perpendicularly on the circular arc interface of arcuation die body 2.SEi
Represent that with vertical direction angle be αiThe i-th beam X-ray, the ray SEiThrough arcuation die body 2, D is met at cambered surfacei, with rank
The terraced a certain ladder B of die body 1jBottom surface meets at Ei, by imaging unit PiReceive.CF=1.00mm in Fig. 9, SC=R=SDi, certain single order
Terraced thickness F O=Bj, i probe unit is shared, the thickness that ray passes through through probe unit is di=DiEi.Then：
It can obtain：
Wherein, Ei(Pi) it is expressed as PiThe coordinate at place, αi∈ [0,17.1 °], diIt is monotonic increasing function, and is incremental variations
Ever-increasing function.
Adjacent thickness difference can be obtained：
diVariable quantity determined, Δ d by the distance of detector Pixel size and pixel distance O pointsi+1,iIt is monotonic increase
Function.Such as：The total height of arcuation die body, which becomes, turns to 29mm, and 200 probe units, mean change are distributed in the range of 200mm
29mm/200=0.145mm；If probe unit is distributed 1000, mean change 29mm/1000=0.029mm.Because cosine
Function is nonlinear, and actual change amount can be with angle change, and angle is smaller, and variable quantity is smaller, and thickness resolving power can be higher.
Such as：The ladder height of ladder die body takes 20mm, αi∈ [0,15.9 °], i ∈ [1,1000], Ei(Pi)∈[0,
200], then：
It can obtain：
Δd11,10=d11-d10=0.0006mm, with i increase, die body that ray that adjacent imaging unit receives passes through
Thickness difference will become big；With i reduction, the die body thickness difference that the ray of adjacent imaging unit reception passes through will diminish, than
0.0006mm is also small.Thus, thickness change minimum can reach 0.001mm.
In the existing CR/DR of hospital, general resolving power is in 2~5line/mm, i.e. 2~5 pixel/mm, 200mm scopes
Interior pixel number is 400~1000, and the contrast change that arcuation die body is formed can reach 0.001mm.
The technique effect that detection plate provided in an embodiment of the present invention is realized is：
1st, wide contrast range is realized, detects the tonal range of x-ray imaging.
The contrast of existing die body typically below 20% analyze in scope by degree of comparing.Inspection provided in an embodiment of the present invention
The contrast of drafting board has：
The rank of contrast thin plate 16：0.002mm~0.026mm.
The rank of ladder die body 10：5mm~50mm, it is spaced 5.0mm；20mm~200mm, it is spaced 20mm.
Arcuation die body arc gradual change：Arc thickness change 1mm~30mm, gradual change development length 200mm.
Three above contrast component can combine, and generate the broader contrast of scope, the contrast range after combination
For 0.002mm~80mm, 200mm can be extended to, subsection gradual can be contrasted in the range of 100%.
2 while high and low contrast is realized, detect the tonal range of x-ray imaging.
The single combination of arcuation die body, ladder die body, while high and low contrast is realized, contrast range 1mm~80mm,
Contrast change turns to every millimeter of horizontal direction change and causes vertical direction to change 0.145mm.
Involved contrast has：
The rank of ladder die body 10：5mm~50mm, it is spaced 5.0mm；20mm~200mm, it is spaced 20mm.
Arcuation die body arc gradual change：Arc thickness change 1mm~30mm, gradual change development length 200mm.
3rd, the gradual change situation that low contrast is dynamically observed in the range of different contrast is realized.
Arcuation die body, joggle die body phase mutually repeatedly combine, and position of the mobile arcuation die body on ladder die body, realize not
With observation low contrast gradual change in contrast range.
Involved contrast has：
The rank of ladder die body 10：5mm~50mm, it is spaced 5.0mm.
Arcuation die body arc gradual change：Arc thickness change 1mm~30mm, gradual change development length 200mm.
4th, the observation of extremely low contrast is realized.
Contrast thin plate, arcuation die body, joggle die body phase mutually repeatedly combine, position of the mobile arcuation die body on ladder die body
Put, combine contrast thin plate, realize and extremely low contrast is observed in the range of different contrast.
Combination contrast has：
The rank of contrast thin plate 16：0.002mm~0.026mm.
Arcuation die body gradual change contrast：1mm~30mm.
The rank of ladder die body 10：5mm~50mm, it is spaced 5.0mm；20mm~200mm, it is spaced 20mm.
Summarize：
The a certain staging pack of arcuation die body and ladder die body forms different contrast, in a certain contrast range of observable
Contrast gradual change.
Position of the mobile arcuation die body on ladder die body, the different contrast formed in the range of different contrast are considerable
The contrast gradual change in different contrast ranges is examined, observation contrast change is linear.
Contrast thin plate combines with arcuation die body, ladder die body, forms extremely low contrast, test comparison degree resolution capability.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the method and its core concept for understanding the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, in specific embodiments and applications there will be changes.In summary, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
- A kind of 1. x-ray imaging dynamic contrast detection plate, it is characterised in that the x-ray imaging dynamic contrast detection plate Including ladder die body and arcuation die body；The ladder die body is solid hierarchic structure；The ladder die body includes multiple ladders, and in each ladder A raised positioning key is respectively provided with one end；The arcuation die body is the solid ladder structure of right angle that inclined-plane is cambered surface；The bottom surface of the arcuation die body set one with The positioning spline for the depression that the positioning key matches；The arcuation die body is detachably arranged in any of the ladder die body by the positioning spline and the positioning key On the ladder.
- 2. x-ray imaging dynamic contrast detection plate according to claim 1, it is characterised in that the cambered surface with it is described The most short vertical range of the bottom surface of arcuation die body is 1mm；The cambered surface is most long vertical with the bottom surface of the arcuation die body Distance is 30mm.
- 3. x-ray imaging dynamic contrast detection plate according to claim 1, it is characterised in that the ladder die body The quantity of ladder is 10, and the difference in height of the adjacent ladder is 5mm.
- 4. x-ray imaging dynamic contrast detection plate according to claim 3, it is characterised in that the short side of the ladder It is 20mm；The long side of the ladder is 220mm.
- 5. x-ray imaging dynamic contrast detection plate according to claim 4, it is characterised in that the x-ray imaging moves State Contrast Detection plate also includes contrast thin plate；The horizontal any institute for being fixed on the ladder die body of the contrast thin plate State above ladder, and the contrast thin plate is parallel with the bottom surface of the ladder die body.
- 6. x-ray imaging dynamic contrast detection plate according to claim 5, it is characterised in that the x-ray imaging moves State Contrast Detection plate also includes support frame；The contrast thin plate is fixed on the joggle die by support frame as described above level On any ladder of body.
- 7. x-ray imaging dynamic contrast detection plate according to claim 5, it is characterised in that the ladder die body, institute State arcuation die body, the material of the contrast thin plate is aluminum alloy materials.
- 8. x-ray imaging dynamic contrast detection plate according to claim 5, it is characterised in that the contrast thin plate Number be one or more.
- 9. x-ray imaging dynamic contrast detection plate according to claim 5, it is characterised in that the contrast thin plate Thickness be 0.01mm, 0.008mm, 0.006mm or 0.002mm；The length of the contrast thin plate and the wide respectively less than ladder Long side length, and the length of the contrast thin plate and the contrast thin plate is wide equal.
- 10. x-ray imaging dynamic contrast detection plate according to claim 1, it is characterised in that the arcuation die body A length of 220mm of bottom surface；A width of 20mm of the bottom surface of the arcuation die body；The upper bottom surface of the arcuation die body it is a length of 20mm；A width of 20mm of the upper bottom surface of the arcuation die body；The radius of the cambered surface of the arcuation die body is 680mm；The arcuation A height of 30mm of die body.
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| CN201711085230.2A CN107753052B (en) | 2017-11-07 | 2017-11-07 | X-ray imaging dynamic contrast detection plate |
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| CN107854132A (en) * | 2017-11-07 | 2018-03-30 | 四川中测辐射科技有限公司 | A kind of x-ray imaging Contrast Detection plate |
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| CN107753052B (en) | 2020-07-14 |
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