CN204072128U - CR/DR image integration test die body - Google Patents
CR/DR image integration test die body Download PDFInfo
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- CN204072128U CN204072128U CN201420587175.2U CN201420587175U CN204072128U CN 204072128 U CN204072128 U CN 204072128U CN 201420587175 U CN201420587175 U CN 201420587175U CN 204072128 U CN204072128 U CN 204072128U
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Abstract
CR/DR image integration test die body of the present utility model, comprise the substrate that epoxy resin is made, upper surface of base plate is provided with graduated scale made of copper, and described graduated scale comprises the horizontal graduated scale of centrally axis setting and longitudinal graduated scale, and described graduated scale is covered with coat of metal; Described substrate center is provided with the first copper sheet, the surface of described substrate is provided with 3 group image uniformity test points; Described CR/DR image integration test die body surface is provided with definition test card, and described definition test card is provided with the lead grid bar that the different lead equivalent of 20 groups of arranging densities is 0.1mpb.This utility model provides that a kind of degree of accuracy is better, detection efficiency is high, cost of manufacture is low and more frivolous CR/DR image integration test die body.
Description
Technical field
This utility model relates to the testing tool of X radiographic systems, particularly a kind of for detection space resolving power, image uniformity energy, light open country and the conforming test die body of irradiation field.
Background technology
In recent years, advantages such as medical computer X radiographic systems (CR system) and digital X radiographic systems (DR system) are fast with image taking speed, clear picture, high to minute lesion recall rate, exposure dose is little and obtain extensive accreditation, have significant advantage compared to Traditional x-ray diagnostic machine.And the x-ray radiation source of medical computer X radiographic systems (CR system) and digital X radiographic systems (DR system), the accuracy of the reliability of its measuring parameter and the quality of image and medical diagnosis is of close concern to each other, and its calibrating is significant.It is as compulsory verification measurement instrument, includes the calibrating to indexs such as spatial resolution, Low contrast resolution, image uniformity energy, light open country and irradiation field concordance in " Digital photography (CR, DR) system x-ray radiation source vertification regulation ".
At present for the calibrating of the x-ray radiation source of computer X radiographic systems (CR system) and digital X radiographic systems (DR system), many group test die bodys need be adopted, be respectively used to detect the spatial resolution of CR/DR system, Low contrast resolution, image uniformity energy, light wild with irradiation field concordance etc. performance indications, need multiexposure, multiple exposure, complicated operation, complex steps and carry inconvenience during detection.
In Chinese invention patent application prospectus CN 102631211 A, disclose " a kind of CR/DR comprehensive detection die body; the surface of the square pure aluminum plate that thickness is 20mm, the length of side is greater than 430mm is provided with horizontal graduated scale and longitudinal graduated scale along these foursquare two center line directions ", test function that is light is wild and irradiation field concordance, Low contrast resolution, spatial resolution and image uniformity energy concentrates on same and tests in die body, needs the problem of multiexposure, multiple exposure when solving detection.But it needs collocation resolution chart again to expose the test that could realize spatial resolution, in the description of Chinese utility model patent ublic specification of application CN 102631211 A, make related description " (this index collocation resolution chart carries out) ".In order to reach measurement Low contrast resolution, what the detection die body in this utility model adopted remains the conventional aluminium sheet used.The record of " die body material is aluminum (purity >=99%), and thickness is 20mm ± 0.05mm " is had in " Digital photography (CR, DR) system x-ray radiation source vertification regulation ".Adopt so functional integrated be not a kind of very successful trial, still Shortcomings part.
Above-mentioned aluminum die body adopted under normal circumstances in prior art, and its essence arranges the graduated scale that precision is 2mm on the thick pure aluminum plate of 20mm.Use this aluminum die body as spatial resolution, image uniformity energy, light open country and the conforming detection die body of irradiation field, not only high, the thick and heavy not Portable belt of cost of manufacture, and easily cause die body to be out of shape because of the material behavior of aluminum, not easily preserve, consumption and oxide etch and aluminum die body surface is easily worn, thus the accuracy of image scale label.Further, existing metering system directly exposes and gathers X-ray line through the image after aluminum die body.From the precision of measurement result, on the one hand, it is comparatively complicated that tradition arranges graduated scale on aluminum die body, cannot make high-precision graduated scale; On the other hand, conventional thickness is the aluminum die body of 20mm, and half decay occurs the X-ray that radiation source is sent, and causes the X-ray after decaying clearly not project, and causes light open country can not accomplish very accurate with the conforming detection of irradiation field.
Utility model content
For the defect that prior art exists, technical problem to be solved in the utility model is: provide that a kind of degree of accuracy is better, detection efficiency is high, cost of manufacture is low and more frivolous CR/DR image integration test die body, is integrated with spatial resolution, image uniformity energy, light wild with the conforming measuring ability of irradiation field.
In order to solve the problem, CR/DR image integration test die body of the present utility model, comprise the substrate that epoxy resin is made, upper surface of base plate is provided with graduated scale made of copper, described graduated scale comprises the horizontal graduated scale of centrally axis setting and longitudinal graduated scale, and described graduated scale is covered with coat of metal; Described substrate center is provided with the first copper sheet, the surface of described substrate is provided with 3 group image uniformity test points; Described CR/DR image integration test die body surface is provided with definition test card, and described definition test card is provided with the lead grid bar that the different lead equivalent of 20 groups of arranging densities is 0.1mpb.
After adopting above structure, this utility model compared with prior art, has the following advantages:
CR/DR image integration test die body of the present utility model adopts the substrate of epoxy resin and graduated scale made of copper, replace original way that graduated scale is set on aluminum die body, traditional aluminum die body is arranged graduated scale not only complex manufacturing technology can not make the scale that precision is higher, resolution is higher, also cause half decay of X-ray because of the aluminum die body that 20mm is thick, cause the projection of the X-ray penetrating aluminum die body unintelligible; And in prior art, usually adopt the method for intaglio graduated scale, make the X-ray through graduated scale brighter than the projection through the X-ray of die body, but the projected contrast that produces of this method not obvious, cause measuring and inaccuracy.And this utility model adopts ink can make high accuracy by heat-transferring method and copper lithographic technique, the graduated scale of high-resolution, and material uses epoxy resin can be penetrated easily by X ray and make image clear transparent, decayed to a certain extent after X-ray projects graduated scale made of copper, graduated scale is made to become the gem-pure shade in border, significant progress is had compared to conventional aluminum molding body, ensure that the accurate of scale and higher resolution can be made into, described graduated scale is covered with coat of metal, ensure that graduation mark is smooth straight and not easily oxidized, this utility model makes light wild more accurate with the conforming detection of irradiation field.3 group image uniformity test points are adopted to record image uniformity.CR/DR image integration test die body installs definition test card, and can record spatial resolution, arrangement space rationally reduces costs, and does not need to reuse spatial resolution test chart and again exposes.Single exposure just can obtain the performance indications such as launched field and light wild concordance, image uniformity and spatial resolution, and detection efficiency is high.Moreover, CR/DR image integration test die body of the present utility model adopts epoxy resin and scale rear sight made of copper, and more frivolous, cost of manufacture is lower, has greatly saved resource, and not easily deformation has occurred, thus improves the accuracy of test result.This utility model degree of accuracy is better, detection efficiency is high and cost of manufacture is low.
As preferably, described substrate be a square, the length of side is 406mmX406mm, and thickness is 3mm.This utility model is obviously lighter, and cost of manufacture is lower.
As preferably, the thickness of described graduated scale is 3 ounces.The copper product of 3 ounce thickness can make the X-ray clear scales border through graduated scale obvious just.
As preferably, 3 described group image uniformity test points comprise: the first group image uniformity test point, comprise the first square copper sheet and be separately positioned on corresponding to 375mm × 375mm square four vertex positions on second, third, the 4th, the 5th copper sheet; Second group image uniformity test point, comprises the first square copper sheet and is separately positioned on corresponding to the 6th, the 7th, the 8th, the 9th copper sheet on 378mm × 378mm square four vertex positions; 3rd group image uniformity test point, comprise the first square copper sheet and be separately positioned on corresponding to 380mm × 380mm square four vertex positions on the tenth, the 11, the 12, the 13 copper sheet.
As preferably, described first, second, third, fourth, the 5th, the 6th, the 7th, the 8th, the 9th, the tenth, the 11, the 12, the 13 copper sheet is the square that the length of side is 2mm.
As preferably, it is 50mm that described definition test card is embedded in the described CR/DR image integration test die body surface length of side, and the degree of depth is in the square area of 2mm.
As preferably, described horizontal graduated scale and longitudinal graduated scale central authorities scale division value are 10mm, and two ends scale division value is 1mm.Graduated scale adopts higher resolution, improves the degree of accuracy of test, makes light wild more accurate with the conforming detection of irradiation field.
As preferably, described coat of metal is one deck nickel metal film.Adopt nickel metal film to make scale circuit smooth, and prevent the oxidized corrosion of copper.
As preferably, described CR/DR image integration test die body surface is covered with one deck photosensitive-ink coating.Photosensitive-ink material does not affect the observation of graduated scale, and the coating of sealing can prevent wearing and tearing and the oxide etch of graduated scale.
The precision that this utility model detects compared to traditional aluminium sheet is higher, more easily preserves, and antioxygenic property is easy to well preserve, and can not produce deformation because of abrasion and corrosion, is not easy to make degree of accuracy produce deviation.This utility model degree of accuracy is better, detection efficiency is high, cost of manufacture is low and more frivolous CR/DR image integration test die body, be integrated with spatial resolution, image uniformity energy, light open country and the conforming measuring ability of irradiation field, exposure once can obtain spatial resolution, light open country and launched field concordance, affect the testing results such as uniformity, and detection efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Shown in figure 1, substrate, 2, graduated scale, the 301, first copper sheet, 302, the second copper sheet, the 303, the 3rd copper sheet, the 304, the 4th copper sheet, 305, the 5th copper sheet, the 306, the 6th copper sheet, the 307, the 7th copper sheet, 308, the 8th copper sheet, the 309, the 9th copper sheet, the 310, the tenth copper sheet, 311, the 11 copper sheet, 312, the 12 copper sheet, the 313, the 13 copper sheet, 4, definition test card.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
CR/DR image integration test die body as of the present utility model in Fig. 1, comprise the substrate 1 that epoxy resin is made, substrate 1 upper surface is provided with graduated scale 2 made of copper, and described graduated scale 2 comprises horizontal graduated scale 2 and longitudinal graduated scale 2 of centrally axis setting; Described substrate 1 central authorities are provided with first copper sheet, the surface of described substrate 1 are provided with 3 group image uniformity test points; Described CR/DR image integration test die body surface is provided with definition test card 4, and described definition test card 4 is provided with the lead grid bar that the different lead equivalent of 20 groups of arranging densities is 0.1mpb.
Described substrate 1 be a square, the length of side is 406mmX406mm, and thickness is 3mm.
The thickness of described graduated scale 2 is 3 ounces.
3 described group image uniformity test points comprise: the first group image uniformity test point, comprise the first square copper sheet and be separately positioned on corresponding to 375mm × 375mm square four vertex positions on second, third, the 4th, the 5th copper sheet; Second group image uniformity test point, comprises the first square copper sheet and is separately positioned on corresponding to the 6th, the 7th, the 8th, the 9th copper sheet on 378mm × 378mm square four vertex positions; 3rd group image uniformity test point, comprises the first square copper sheet and is separately positioned on corresponding to the tenth, the 11, the 12, the 13 copper sheet on 380mm × 380mm square four vertex positions.
Described first, second, third, fourth, the 5th, the 6th, the 7th, the 8th, the 9th, the tenth, the 11, the 12, the 13 copper sheet is the square that the length of side is 2mm.
It is in the square area of the dark 2mm of 50mm that described definition test card 4 is embedded in the described CR/DR image integration test die body surface length of side.
Described horizontal graduated scale 2 and the central scale division value of longitudinal graduated scale 2 are 10mm, and two ends scale division value is 1mm.
Described graduated scale 2 is covered with one deck nickel metal film.
Described CR/DR image integration test die body surface is covered with one deck photosensitive-ink coating.
This utility model degree of accuracy is better, detection efficiency is high, cost of manufacture is low and more frivolous, this utility model surface arranges copper material graduated scale 2 and the image uniformity test point with different test function, is integrated with spatial resolution, image uniformity energy, light open country and the conforming measuring ability of irradiation field.
Spatial resolution is the ability differentiating adjacent two objects in image under high contrast condition.Select spatial resolution test chart, lead equivalent is 0.1 mmPb, and maximum active line correspondence is not less than 50 Lp/cm.In lead grid bar described in 20 groups, the arranging density of first group of lead grid bar is 0.6 lp/mm, the arranging density of second group of lead grid bar is 0.7 lp/mm, the arranging density of the 3rd group of lead grid article is 0.8 lp/mm, the arranging density of the 4th group of lead grid article is 0.9 lp/mm, the arranging density of the 5th group of lead grid article is 1.0 lp/mm, the arranging density of the 6th group of lead grid article is 1.2 lp/mm, the arranging density of the 7th group of lead grid article is 1.4 lp/mm, the arranging density of the 8th group of lead grid article is 1.6 lp/mm, the arranging density of the 9th group of lead grid article is 1.8 lp/mm, the arranging density of the tenth group of lead grid article is 2.0 lp/mm, the arranging density of the 11 group of lead grid article is 2.2 lp/mm, the arranging density of the 12 group of lead grid article is 2.5 lp/mm, the arranging density of the 13 group of lead grid article is 2.8 lp/mm, the arranging density of the 14 group of lead grid article is 3.1 lp/mm, the arranging density of the 15 group of lead grid article is 3.4 lp/mm, the arranging density of the 16 group of lead grid article is 3.7 lp/mm, the arranging density of the 17 group of lead grid article is 4.0 lp/mm, the arranging density of the 18 group of lead grid article is 4.3 lp/mm, the arranging density of the 19 group of lead grid article is 4.6 lp/mm, the arranging density of the 20 group of lead grid article is 5.0 lp/mm.
This utility model adopts three groups of different image uniformity test points, the even performance of testing image.Every group image uniformity test point is positioned at by the first copper sheet 301 of central authorities and all the other that four copper sheets on four summits form.Get 13 copper sheets, three groups of data are for detecting image uniformity index.
Light open country refers to the region that x-ray apparatus head analog light source defines at the plane of incidence.Irradiation field is also called launched field, refers to the projection of beam at the plane of incidence, says it is 50% region defined of beam centre region dose intensity exactly.Because launched field cannot be determined by visual, therefore, usually visible analog launched field is used.The wild consistency detection of launched field, light is mainly in order to verify the degree that overlaps of light and irradiation field, i.e. the degrees of offset on light open country and launched field center or border.This is because the wild concordance of launched field and light for clinical treatment and work up significant.
What light open country and irradiation field coherence measurement mode adopted is direct exposure, obtains the image through the X-ray detected after die body.The projection of this utility model medical X-ray penetrates this substrate 1 substantially, epoxy resin can be penetrated easily by X ray and make image clear transparent, decayed to a certain extent after X-ray projects graduated scale 2 made of copper, make graduated scale 2 become the gem-pure shade in border, the light open country that can be used for medical X-ray is tested with launched field uniformity test and image uniformity.
Below only just most preferred embodiment of the present utility model is described, but can not be interpreted as it is limitations on claims.This utility model is not limited only to above embodiment, and all various changes done in the protection domain of this utility model independent claims are all in protection domain of the present utility model.
Claims (9)
1. a CR/DR image integration test die body, it is characterized in that: comprise the substrate (1) that epoxy resin is made, substrate (1) upper surface is provided with graduated scale made of copper (2), described graduated scale (2) comprises the horizontal graduated scale of centrally axis setting and longitudinal graduated scale, and described graduated scale (2) is covered with coat of metal; Described substrate (1) central authorities are provided with the first copper sheet (301), the surface of described substrate (1) are provided with 3 group image uniformity test points; Described CR/DR image integration test die body surface is provided with definition test card (4), and described definition test card (4) is provided with the lead grid bar that the different lead equivalent of 20 groups of arranging densities is 0.1mpb.
2. CR/DR image integration test die body according to claim 1, is characterized in that: described substrate (1) is a square, and the length of side is 406mmX406mm, and thickness is 3mm.
3. CR/DR image integration test die body according to claim 1, is characterized in that: the thickness of described graduated scale (2) is 3 ounces.
4. CR/DR image integration test die body according to claim 1, is characterized in that: 3 described group image uniformity test points comprise:
First group image uniformity test point, comprise the first copper sheet (301) and be separately positioned on corresponding to 375mm × 375mm square four vertex positions on second, third, the 4th, the 5th copper sheet (302,303,304,305);
Second group image uniformity test point, comprises the first copper sheet (301) and is separately positioned on corresponding to the 6th, the 7th, the 8th, the 9th copper sheet (306,307,308,309) on 378mm × 378mm square four vertex positions;
3rd group image uniformity test point, comprise the first copper sheet (301) and be separately positioned on corresponding to 380mm × 380mm square four vertex positions on the tenth, the 11, the 12, the 13 copper sheet (310,311,312,313).
5. CR/DR image integration according to claim 4 test die body, is characterized in that: described first, second, third, fourth, the 5th, the 6th, the 7th, the 8th, the 9th, the tenth, the 11, the 12, the 13 copper sheet (301,302,303,304,305,306,307,308,309,310,311,312,313) is the square that the length of side is 2mm.
6. CR/DR image integration test die body according to claim 1, is characterized in that: it is 50mm that described definition test card (4) is embedded in the described CR/DR image integration test die body surface length of side, and the degree of depth is in the square area of 2mm.
7. CR/DR image integration test die body according to claim 1, is characterized in that: described horizontal graduated scale and longitudinal graduated scale central authorities scale division value are 10mm, and two ends scale division value is 1mm.
8. CR/DR image integration test die body according to claim 1, is characterized in that: described coat of metal is one deck nickel metal film.
9. CR/DR image integration test die body according to claim 1, is characterized in that: described CR/DR image integration test die body surface is covered with one deck photosensitive-ink coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420587175.2U CN204072128U (en) | 2014-10-11 | 2014-10-11 | CR/DR image integration test die body |
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| CN201420587175.2U CN204072128U (en) | 2014-10-11 | 2014-10-11 | CR/DR image integration test die body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983182A (en) * | 2015-02-27 | 2016-10-05 | 苏州雷泰医疗科技有限公司 | Compound quality assurance die |
| CN108154780A (en) * | 2017-12-30 | 2018-06-12 | 上海交通大学医学院附属上海儿童医学中心 | A kind of difference x-ray attenuation degree simulation model and production method |
| CN111473783A (en) * | 2019-01-24 | 2020-07-31 | 景硕科技股份有限公司 | Production line code processing system and method |
-
2014
- 2014-10-11 CN CN201420587175.2U patent/CN204072128U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983182A (en) * | 2015-02-27 | 2016-10-05 | 苏州雷泰医疗科技有限公司 | Compound quality assurance die |
| CN105983182B (en) * | 2015-02-27 | 2020-10-16 | 苏州雷泰医疗科技有限公司 | Composite quality assurance die body |
| CN108154780A (en) * | 2017-12-30 | 2018-06-12 | 上海交通大学医学院附属上海儿童医学中心 | A kind of difference x-ray attenuation degree simulation model and production method |
| CN111473783A (en) * | 2019-01-24 | 2020-07-31 | 景硕科技股份有限公司 | Production line code processing system and method |
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