CN105632577A - Device and method for adjusting cross-section thickness of collimator - Google Patents
Device and method for adjusting cross-section thickness of collimator Download PDFInfo
- Publication number
- CN105632577A CN105632577A CN201511033731.7A CN201511033731A CN105632577A CN 105632577 A CN105632577 A CN 105632577A CN 201511033731 A CN201511033731 A CN 201511033731A CN 105632577 A CN105632577 A CN 105632577A
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- China
- Prior art keywords
- thickness
- chock
- chocks
- lips
- lip sheet
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention discloses a device and a method for adjusting cross-section thickness of collimator, comprising a fixing lip sheet, a movable lip sheet and a plurality of chocks; two ends of the fixing lip sheet are provided with positioning groove; the chock is of a long stripe; the hand-hold ends of the chocks have identical thickness values; if the working ends of the plurality of chocks have different thickness values, the working end of each chock has a constant thickness value; the movable lip sheet is connected to a screw rod; and the fixing lip sheet and the movable lip sheet are made of a lead block or a tungsten block. The adjustment method comprises steps of fixing the chocks of the corresponding thicknesses on two ends of the lip sheet according to the thickness requirement of the fault (cross-section thickness requirement), regulating and moving the lip sheet, pressing the two chocks, watching or lightly pulling the chocks by the hand and checking whether the movable lip sheet tightly presses the two chocks. The invention guarantees the accuracy of the fault thickness through tightly pressing chock with the corresponding thickness, and improves the CT space resolution ratio and the density resolution ratio.
Description
Technical field
The present invention relates to industry CT equipment collimator field, be specifically related to collimator tomography method for thickness regulation.
Background technology
Linear array detector collimator used by existing industry CT is in use in order to meet the requirement of spatial resolution and density resolution, it is necessary to gather the ray of varying number, namely needs to be switched to different tomography thickness when scanning; Equally, radiographic source collimator is also required to be switched to different tomography thickness. Current switching mode is the kind of drive that screw mandrel drives that lips moves. But when switching, due to the limitation (such as drive mechanism rigging error, drive mechanism driving error etc.) of mechanical transmission structure, cause lips two ends to move asynchronous. Therefore, there is uncertainty in tomography thickness, in industry CT scanning imagery, effect difficulty can be satisfied with.
Summary of the invention
Present invention aim to address the tomography thickness adjusted problem of industry CT equipment collimator.
The present invention proposes the adjustment device of a kind of collimator tomography thickness, comprises fixing lips, mobile lips and some chocks; The two ends of described fixing lips are provided with locating slot, and the degree of depth of locating slot is less than the thickness of fixing lips; Described chock is strip, and the tail end of chock is handheld terminal, and chock part except tail end is working end, and described working end is different from the thickness of handheld terminal; The handheld terminal of described some chocks has identical one-tenth-value thickness 1/10, and the working end of described some chocks has different one-tenth-value thickness 1/10s, and each chock working end is constant thickness value, and the handheld terminal of each chock is shaped with the one-tenth-value thickness 1/10 of corresponding working end; Described mobile lips there is connecting hole.
The present invention also proposes the control method of a kind of collimator tomography thickness, comprises the steps of the two ends that (1) the standard chock of corresponding thickness is placed in fixing lips according to tomography thickness requirement, and wherein the working end of chock is placed in locating slot; (2) regulate mobile lips, two pieces of chocks are compressed; (3) the visual or manual chock that pulls gently, whether the mobile lips of inspection compresses two pieces of chocks; When checking that discovery chock fails to compress, again regulate mobile lips till compressing chock.
Gap between the fixing lips of the present invention and mobile lips is ray receipt tomography, when scanning, switch different tomography thickness as required, and guarantee the precision of tomography thickness by compressing the mode of corresponding thickness chock, thus meeting the requirement of CT spatial resolution and density resolution further.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the partial enlarged drawing of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further elaborated with accompanying drawing.
As shown in Fig. 1, Fig. 2, the adjustment device of a kind of collimator tomography thickness, comprise fixing lips 1, mobile lips 2 and some chocks; The two ends of described fixing lips 1 are provided with the locating slot 5 of cuboid, and the degree of depth of locating slot 5 is less than the thickness of fixing lips 1; Described chock 3 is strip, and the tail end of chock is handheld terminal 3a, and chock part except tail end is working end 3b, and described working end 3b is different from the thickness of handheld terminal 3a; The handheld terminal of described some chocks has identical one-tenth-value thickness 1/10, and the working end of described some chocks has different one-tenth-value thickness 1/10s, and each chock working end is constant thickness value, and the handheld terminal of each chock is shaped with the one-tenth-value thickness 1/10 of corresponding working end; Described mobile lips there is connecting hole 4, can be connected with screw mandrel, be connected with mechanism and action to facilitate; Described fixing lips, mobile lips are made up of lead or tungsten gold bullion.
The control method of a kind of collimator tomography thickness, comprises the steps of the two ends that (1) chock of corresponding thickness is placed in fixing lips according to tomography thickness requirement, and wherein the working end of chock is placed in locating slot; (2) regulate mobile lips, as up and down in rotarily driven mobile lips by screw mandrel so that two pieces of chocks are compressed by mobile lips; (3) the visual or manual chock that pulls gently, whether the mobile lips of inspection compresses two pieces of chocks simultaneously; When checking that discovery chock fails to compress, again regulate mobile lips till compressing chock.
Gap between the fixing lips of the present invention and mobile lips is ray receipt tomography, when scanning, switch different tomography thickness as required, and guarantee the precision of tomography thickness by compressing the mode of corresponding thickness chock, further meet the requirement of CT spatial resolution and density resolution.
Above, be only the present invention preferably detailed description of the invention, but protection scope of the present invention be not limited thereto, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. the adjustment device of a collimator tomography thickness, it is characterised in that: comprise fixing lips, mobile lips and some chocks; The two ends of described fixing lips are provided with locating slot, and the degree of depth of locating slot is less than the thickness of fixing lips; Described chock is strip, and the tail end of chock is handheld terminal, and chock part except tail end is working end, and described working end is different from the thickness of handheld terminal; The handheld terminal of described some chocks has identical one-tenth-value thickness 1/10, and the working end of described some chocks has different one-tenth-value thickness 1/10s, and each chock working end is constant thickness value, and the handheld terminal of each chock is shaped with the one-tenth-value thickness 1/10 of corresponding working end; Described mobile lips there is connecting hole.
2. the adjustment device of a kind of collimator tomography thickness according to claim 1, it is characterised in that: described fixing lips, mobile lips are made up of lead or tungsten gold bullion.
3. the control method of a collimator tomography thickness, it is characterised in that comprising the steps of the two ends that (1) chock of corresponding thickness is placed in fixing lips according to tomography thickness requirement, wherein the working end of chock is placed in locating slot; (2) regulate mobile lips, two pieces of chocks are compressed; (3) the visual or manual chock that pulls gently, whether the mobile lips of inspection compresses two pieces of chocks; When checking that discovery chock fails to compress, again regulate mobile lips till compressing chock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033731.7A CN105632577B (en) | 2015-12-31 | 2015-12-31 | A kind of adjusting means and adjusting method of collimater tomography thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033731.7A CN105632577B (en) | 2015-12-31 | 2015-12-31 | A kind of adjusting means and adjusting method of collimater tomography thickness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105632577A true CN105632577A (en) | 2016-06-01 |
| CN105632577B CN105632577B (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511033731.7A Active CN105632577B (en) | 2015-12-31 | 2015-12-31 | A kind of adjusting means and adjusting method of collimater tomography thickness |
Country Status (1)
| Country | Link |
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| CN (1) | CN105632577B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002034966A (en) * | 2000-07-19 | 2002-02-05 | Shimadzu Corp | X-ray ct apparatus |
| CN1878503A (en) * | 2003-11-20 | 2006-12-13 | Ge医疗系统环球技术有限公司 | Collimator and radiation irradiator |
| CN101114534A (en) * | 2006-07-28 | 2008-01-30 | 同方威视技术股份有限公司 | Integrated shielding collimator |
| CN101329923A (en) * | 2007-06-21 | 2008-12-24 | 同方威视技术股份有限公司 | Dual-purpose collimating device with seam |
-
2015
- 2015-12-31 CN CN201511033731.7A patent/CN105632577B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002034966A (en) * | 2000-07-19 | 2002-02-05 | Shimadzu Corp | X-ray ct apparatus |
| CN1878503A (en) * | 2003-11-20 | 2006-12-13 | Ge医疗系统环球技术有限公司 | Collimator and radiation irradiator |
| CN101114534A (en) * | 2006-07-28 | 2008-01-30 | 同方威视技术股份有限公司 | Integrated shielding collimator |
| CN101329923A (en) * | 2007-06-21 | 2008-12-24 | 同方威视技术股份有限公司 | Dual-purpose collimating device with seam |
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| Publication number | Publication date |
|---|---|
| CN105632577B (en) | 2018-02-16 |
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Denomination of invention: A device and method for adjusting the thickness of collimator faults Effective date of registration: 20230605 Granted publication date: 20180216 Pledgee: Chongqing Bank Co.,Ltd. Major Branch Pledgor: CHONGQING ZHENCE SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2023500000039 |