CN112587811A - Tungsten-copper alloy homogenizing block for medical linear accelerator - Google Patents
Tungsten-copper alloy homogenizing block for medical linear accelerator Download PDFInfo
- Publication number
- CN112587811A CN112587811A CN202011456375.0A CN202011456375A CN112587811A CN 112587811 A CN112587811 A CN 112587811A CN 202011456375 A CN202011456375 A CN 202011456375A CN 112587811 A CN112587811 A CN 112587811A
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- China
- Prior art keywords
- tungsten
- copper
- monolith
- copper alloy
- linear accelerator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 28
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 title claims abstract description 28
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 40
- 239000010937 tungsten Substances 0.000 claims abstract description 40
- 229910052802 copper Inorganic materials 0.000 claims abstract description 34
- 239000010949 copper Substances 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1092—Details
Abstract
The invention relates to a tungsten-copper alloy equalizing block for a medical linear accelerator, which comprises a tungsten equalizing block and a copper equalizing block, wherein the tungsten equalizing block is embedded in the copper equalizing block. The purpose of the tungsten-copper alloy integral block for the medical linear accelerator is to solve the problem that the tungsten steel integral block is difficult to trim on the accelerator site due to high hardness.
Description
Technical Field
The invention relates to the technical field of medical electronic linear accelerators, in particular to a tungsten-copper alloy homogenizing block for a medical linear accelerator.
Background
The therapeutic head of the medical electronic linear accelerator is positioned below the accelerating tube, provides radiation beams meeting certain uniformity and symmetry requirements, and limits the radiation beams in a certain area to obtain radiation fields with different sizes required clinically. Wherein, after the ray passes through primary collimation awl, need be through the homogenization with bundle of rays monoblock.
The existing uniform block is conical along with the emergent dose distribution of the X-waveband accelerating tube, and meanwhile, the material is generally tungsten steel with large density in order to occupy the treatment space as less as possible and reduce the axial height dimension of the uniform block. Due to the limitation of the current manufacturing process, the emergent dose distribution of the accelerating tube is not completely consistent with the theory, so that the aim of ray homogenization is usually achieved by trimming the homogenizing block according to the dose distribution inspected by the ionization chamber. The tungsten steel is formed by sintering powder in a whole block, the hardness is high, and the tungsten steel is difficult to repair on the site of the accelerator.
Accordingly, the inventors provide a tungsten copper alloy monolith for a medical linear accelerator.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the invention provides a tungsten-copper alloy equalizing block for a medical linear accelerator, wherein the tungsten equalizing block is embedded into a copper equalizing block, the tungsten-copper alloy equalizing block and a pure copper equalizing block have equal equalizing effect and good finishing performance, and the axial size is reduced by 2/3 compared with the original axial size, so that the technical problem that the tungsten-copper alloy equalizing block is difficult to finish on the site of the accelerator due to high hardness is solved.
(2) Technical scheme
The embodiment of the invention provides a tungsten-copper alloy equalizing block for a medical linear accelerator, which comprises a tungsten equalizing block and a copper equalizing block, wherein the tungsten equalizing block is embedded in the copper equalizing block.
Further, the tungsten is conical in whole block.
Furthermore, the copper is in a mountain peak shape.
Further, the copper leveling block comprises a first portion and a second portion, the first portion is in a circular truncated cone shape, the top of the first portion is of a hollow structure, the second portion is in a conical shape, the second portion is arranged at the center of the first portion, and the top of the second portion extends out of the circular truncated cone surface of the first portion.
Furthermore, the tungsten equalizing block is embedded into the center of the bottom of the copper equalizing block.
Furthermore, the tungsten equalizing block is completely embedded into the copper equalizing block, and the bottom of the tungsten equalizing block and the bottom of the copper equalizing block are positioned on the same horizontal plane.
Further, the tungsten equalizing block and the axis of the second part are the same straight line.
Further, a set distance is reserved between the top of the tungsten equalizing block and the top of the second portion.
(3) Advantageous effects
In conclusion, the tungsten equalizing block is embedded into the copper equalizing block, the tungsten-copper alloy equalizing block and the pure copper equalizing block have equal equalizing effect and good finishing performance, the axial height size of the tungsten-copper alloy equalizing block is reduced, the treatment space is increased, meanwhile, the tungsten-copper alloy equalizing block is convenient for field finishing, and the purpose of equalizing rays is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is an elevation view of a tungsten copper alloy monolith for a medical linear accelerator according to an embodiment of the present invention;
FIG. 2 is a top view of a tungsten copper alloy monolith for a medical linear accelerator according to an embodiment of the present invention;
FIG. 3 is a bottom view of a tungsten copper alloy monolith for a medical linear accelerator according to an embodiment of the present invention;
fig. 4 is a sectional view taken along the H-H plane in fig. 3.
In the figure:
1-tungsten is integrated; 2-copper homogenizing and blocking; 201-first part; 202-second part.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic structural diagram of a tungsten-copper alloy monolith for a medical linear accelerator according to an embodiment of the present invention, as shown in fig. 1 to 4, including a tungsten monolith 1 and a copper monolith 2, wherein the tungsten monolith 1 is embedded in the copper monolith 2.
In the above embodiment, the tungsten block is embedded into the copper block, the tungsten-copper alloy block and the pure copper block have equal leveling effect and good finishing performance, the axial height of the tungsten-copper alloy block is reduced, the treatment space is increased, and meanwhile, the tungsten-copper alloy block is convenient for on-site finishing, so that the purpose of leveling the rays is achieved.
In some alternative embodiments, as shown in fig. 4, the tungsten monolith 1 is conical. The tungsten equalizing block 1 is set to be conical so as to meet the emergent dose distributed along with the conical shape of the X-waveband accelerating tube.
In some alternative embodiments, the copper slug 2 is peak-shaped, as shown in fig. 4. The copper equalizing block 2 is arranged in a mountain peak shape so as to be matched with the tungsten equalizing block 1 in shape.
In some alternative embodiments, as shown in fig. 4, the copper monolith 2 includes a first portion 201 and a second portion 202, the first portion 201 is circular truncated cone-shaped and has a hollow top, the second portion 202 is conical, the second portion 202 is disposed at a central position of the first portion 201, and a top of the second portion 202 extends out of the circular truncated surface of the first portion 201.
In the above embodiment, the first portion 201 is provided in order to facilitate mounting thereof on the linear accelerator, and the second portion 202 is provided in order to be adapted to the tungsten monolith 1.
In some alternative embodiments, as shown in fig. 4, the tungsten monolith 1 is embedded in the center of the bottom of the copper monolith 2. Such an arrangement makes it easier to process.
In some alternative embodiments, as shown in fig. 4, the tungsten monolith 1 is embedded in the copper monolith 2, and the bottom of the tungsten monolith 1 is at the same level as the bottom of the copper monolith 2. Wherein, the arrangement mode can lead the tungsten equalizing block 1 and the copper equalizing block 2 to be more tightly attached together.
In some alternative embodiments, as shown in fig. 4, the tungsten monolith 1 is collinear with the axis of the second portion 202. The arrangement mode enables the emitting agent of the accelerating tube to pass through the tungsten equalizing block 1 and the copper equalizing block 2 more easily.
In some alternative embodiments, as shown in fig. 4, the tungsten monolith 1 has a set distance between the top of the second portion 202. The arrangement can enable the emission agent of the accelerating tube to pass through the tungsten equalizing block 1 and then be emitted from the copper equalizing block 2 after a period of time.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. The utility model provides a equal monoblock of tungsten copper alloy for medical linear accelerator which characterized in that, includes equal monoblock of tungsten (1) and equal monoblock of copper (2), equal monoblock of tungsten (1) inlays and establishes in the equal monoblock of copper (2).
2. The tungsten-copper alloy monolith for a medical linear accelerator according to claim 1, wherein the tungsten monolith (1) is conical.
3. The tungsten-copper alloy monolith for a medical linear accelerator according to claim 1 or 2, wherein the copper monolith (2) is mountain shaped.
4. The tungsten-copper alloy monolith for a medical linear accelerator according to claim 3, wherein the copper monolith (2) comprises a first portion (201) and a second portion (202), the first portion (201) is in a circular truncated cone shape, the top of the first portion is a hollow structure, the second portion (202) is in a circular cone shape, the second portion (202) is arranged at the center of the first portion (201), and the top of the second portion (202) extends out of the circular truncated cone surface of the first portion (201).
5. The tungsten-copper alloy monolith for a medical linear accelerator according to claim 4, wherein the tungsten monolith (1) is embedded in a central position of a bottom of the copper monolith (2).
6. The tungsten-copper alloy equalizing block for the medical linear accelerator according to claim 1, wherein the tungsten equalizing block (1) is completely embedded in the copper equalizing block (2), and the bottom of the tungsten equalizing block (1) and the bottom of the copper equalizing block (2) are located at the same horizontal plane.
7. The tungsten-copper alloy monolith for a medical linear accelerator according to claim 2, wherein the axes of the tungsten monolith (1) and the second portion (202) are collinear.
8. The tungsten-copper alloy monolith for a medical linear accelerator according to claim 7, wherein a set distance is provided between the top of the tungsten monolith (1) and the top of the second portion (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456375.0A CN112587811A (en) | 2020-12-13 | 2020-12-13 | Tungsten-copper alloy homogenizing block for medical linear accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456375.0A CN112587811A (en) | 2020-12-13 | 2020-12-13 | Tungsten-copper alloy homogenizing block for medical linear accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112587811A true CN112587811A (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011456375.0A Pending CN112587811A (en) | 2020-12-13 | 2020-12-13 | Tungsten-copper alloy homogenizing block for medical linear accelerator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120230462A1 (en) * | 2011-03-07 | 2012-09-13 | James Leonard Robar | Methods and apparatus for imaging in conjunction with radiotherapy |
| CN104225805A (en) * | 2014-08-15 | 2014-12-24 | 上海联影医疗科技有限公司 | Radiation head of medical accelerator |
| CN104470179A (en) * | 2013-09-23 | 2015-03-25 | 清华大学 | Device and method for generating balanced X-ray radiation field |
| CN106455285A (en) * | 2016-11-14 | 2017-02-22 | 上海联影医疗科技有限公司 | Target assembly and accelerator provided with same |
| US20180028143A1 (en) * | 2014-06-04 | 2018-02-01 | Varian Medical Systems, Inc. | Imaging-based self-adjusting radiation therapy systems, devices, and methods |
| CN109841292A (en) * | 2017-11-27 | 2019-06-04 | 苏州雷泰医疗科技有限公司 | Integral type example of primary collimator and accelerator therapy equipment |
-
2020
- 2020-12-13 CN CN202011456375.0A patent/CN112587811A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120230462A1 (en) * | 2011-03-07 | 2012-09-13 | James Leonard Robar | Methods and apparatus for imaging in conjunction with radiotherapy |
| CN104470179A (en) * | 2013-09-23 | 2015-03-25 | 清华大学 | Device and method for generating balanced X-ray radiation field |
| US20150085989A1 (en) * | 2013-09-23 | 2015-03-26 | Nuctech Company Limited | Apparatus and a method for generating a flattening x-ray radiation field |
| US20180028143A1 (en) * | 2014-06-04 | 2018-02-01 | Varian Medical Systems, Inc. | Imaging-based self-adjusting radiation therapy systems, devices, and methods |
| CN104225805A (en) * | 2014-08-15 | 2014-12-24 | 上海联影医疗科技有限公司 | Radiation head of medical accelerator |
| CN106455285A (en) * | 2016-11-14 | 2017-02-22 | 上海联影医疗科技有限公司 | Target assembly and accelerator provided with same |
| CN109841292A (en) * | 2017-11-27 | 2019-06-04 | 苏州雷泰医疗科技有限公司 | Integral type example of primary collimator and accelerator therapy equipment |
Non-Patent Citations (1)
| Title |
|---|
| 潘夫兴等: "利用蒙特卡罗方法设计医用加速器均整器", 《上海大学学报(自然科学版)》 * |
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Application publication date: 20210402 |