CN107960003A - Accelerating tube - Google Patents
Accelerating tube Download PDFInfo
- Publication number
- CN107960003A CN107960003A CN201711183758.3A CN201711183758A CN107960003A CN 107960003 A CN107960003 A CN 107960003A CN 201711183758 A CN201711183758 A CN 201711183758A CN 107960003 A CN107960003 A CN 107960003A
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- Prior art keywords
- accelerating tube
- pipeline section
- sections
- accelerating
- section
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/22—Details of linear accelerators, e.g. drift tubes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H2277/00—Applications of particle accelerators
- H05H2277/10—Medical devices
- H05H2277/11—Radiotherapy
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The present invention provides a kind of accelerating tube, it includes at least two sections of sequentially connected accelerating tube pipeline sections.Present invention also offers another accelerating tube, it includes defining the first accelerating tube pipeline section of the first beam channel, defines the second accelerating tube pipeline section of the second beam channel, defines the 3rd accelerating tube pipeline section of the 3rd beam channel；The first end of the first accelerating tube pipeline section is used to be connected to electron gun device, its second end is connected to the first end of the second accelerating tube pipeline section；The first end of the 3rd accelerating tube pipeline section is connected to the second end of the second accelerating tube pipeline section, its second end is used to be connected to target assembly, wherein, first beam channel, second beam channel and the 3rd beam channel are on the same line.The present invention reduces the requirement to process equipment on the basis of it ensure that the vacuum enhancing requirement of accelerating tube, has more selectivity to the model of hydrogen stove, so that overall reduce the processing cost of accelerating tube, and ensure that welding quality.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of accelerating tube.
Background technology
In medical instruments field, the kinds of radiation of medical accelerator production is more, energy is high, intensity is big, and with can control
Property, there is many superiority in terms of oncotherapy.However, in various medical accelerators, medical computerized linear accelerator
Due to small, light-weight, easy maintenance, become that modern radiotherapy is most important to use equipment.Wherein, medical electron linear
The core component of accelerator is accelerating tube, and the performance of accelerating tube has been largely fixed the performance of complete machine.
In the prior art, accelerating tube is divided into low energy accelerating tube, middle energy accelerating tube and high energy acceleration pipe according to the big I of energy.
Present large-scale application for low-lying level and middle energy level accelerator.Wherein, middle energy accelerating tube is compared with low energy accelerating tube, electronic energy
Amount is higher than low energy accelerating tube, the advantage is that it can not only be treated outside deep tumor, can also treat the shallow tumour of most of table,
The shallow treatment depth of table can be in the range of 2-5cm.It is large and medium-sized tumour since the therapeutic domain of middle energy accelerating tube expands compared with low energy
The major radiation therapeutic system that hospital needs.
But since the electron energy of middle energy accelerating tube is high, the distance that electronics needs to accelerate will greatly, so middle can accelerating tube
It is longer than low energy accelerating tube therefore also higher to its processing request, it is used when this allows for the energy accelerating tube in welding
Equipment has limitation.
One of processing difficulties of accelerating tube are its vacuum enhancing, this welding requirements to accelerating tube is high, it is necessary to special
Different welding equipment.
At present, when processing tube body generally all by the way of the weldering of hydrogen slice, the length of tube body, determining needs hydrogen to be used
The size of stove, and the length of middle energy accelerating tube considers further that the height of frock and reserved height all in more than 1300mm.Cause
This, hydrogen furnace body internal height is at least in more than 1700mm, and the height of hydrogen stove entirety will reach more than 5m, this hydrogen stove one
As need to customize, processing and use cost all can be higher.Such huge hydrogen stove procurement price is very high, and maintenance cost is very high,
Job costs are also very high, and utilization rate is low so that the processing cost of whole accelerating tube rises.Furnace interior during huge hydrogen stove welding
Upper and lower temperature difference also can also have a certain impact the welding quality of accelerating tube there are problem.
The content of the invention
The technical problem to be solved in the present invention is in order to overcome the processing request of accelerating tube in the prior art high and of high cost
The defects of, there is provided a kind of accelerating tube for meeting inexpensive processing request.Wherein, which can be middle energy accelerating tube or height
Can accelerating tube.Further, middle energy accelerating tube is generally referred to as exporting accelerating tube of the electron energy in 2-15MeV, and high energy adds
Speed pipe generally referred to as accelerating tube of the output electron energy in 4-25MeV.
The present invention is to solve above-mentioned technical problem by following technical proposals：
A kind of accelerating tube, its feature are that the accelerating tube includes at least two sections of sequentially connected accelerating tube pipeline sections.
According to one embodiment of present invention, one section of length of at least two sections accelerating tube pipeline sections is not more than 750mm.
According to one embodiment of present invention, one section of length of at least two sections accelerating tube pipeline sections is not more than 600mm.
According to one embodiment of present invention, one section of length of at least two sections accelerating tube pipeline sections is not more than 500mm.
According to one embodiment of present invention, one section of length of at least two sections accelerating tube pipeline sections is 400-500mm.
According to one embodiment of present invention, at least one end of the accelerating tube pipeline section is welded with flange, adds described two
Packing ring is further included between fast pipe pipeline section, the flange is configured to when installing two accelerating tube pipeline sections, when two accelerating tube pipeline sections
End surfaces against each other when, the flange passes through the washer sealing.
According to one embodiment of present invention, the flange is CF edge of a knife flanges.
According to one embodiment of present invention, the CF edges of a knife flange is different from the material of the accelerating tube pipeline section.
According to one embodiment of present invention, the material of the CF edges of a knife flange includes stainless steel, the accelerating tube pipeline section
Material include copper.
According to one embodiment of present invention, the multiple and longitudinal axis of accelerating tube side is defined on the flange
To parallel location hole.
According to one embodiment of present invention, the accelerating tube is middle energy accelerating tube or high energy acceleration pipe.In medical acceleration
Device field, is low energy accelerating tube, middle energy accelerating tube and high energy acceleration pipe according to energy binned.Wherein it is middle can accelerating tube usually can be with
Two gear X- radiation (6-8MV) are provided for treatment deep tumor, the 4-5 electron radiation (5- of gear different-energy can also be provided
15MeV) used for the shallow tumour for the treatment of table.High energy acceleration pipe can provide the electron radiation of higher energy, general electron radiation point
For 5-9 grades, highest energy can reach 20-25MeV, expand the treatment depth bounds (2-7cm) to the shallow tumour of table.
Present invention also offers a kind of accelerating tube, its feature is, the accelerating tube includes defining the first beam channel
The first accelerating tube pipeline section, define the second accelerating tube pipeline section of the second beam channel, define the 3rd of the 3rd beam channel
Accelerating tube pipeline section；The first end of the first accelerating tube pipeline section is used to be connected to electron gun device, its second end is connected to described
The first end of second accelerating tube pipeline section；The first end of the 3rd accelerating tube pipeline section is connected to the of the second accelerating tube pipeline section
Two ends, its second end are used to be connected to target assembly, wherein, first beam channel, second beam channel and three beams
Circulation road is on the same line.
According to one embodiment of present invention, the first accelerating tube pipeline section, the second accelerating tube pipeline section and the described 3rd add
One section of length in fast pipe pipeline section is not more than 500mm.
According to one embodiment of present invention, the first accelerating tube pipeline section, the second accelerating tube pipeline section and described
Three accelerate the length of one in pipeline section in 400-500mm.
According to one embodiment of present invention, the first accelerating tube pipeline section and the second accelerating tube pipeline section, Yi Jisuo
It is by being respectively fixed to the first accelerating tube pipeline section, described the to state the second accelerating tube pipeline section and the 3rd accelerating tube pipeline section
Two accelerating tube pipeline sections and the edge of a knife flanged joint on the 3rd accelerating tube pipeline section.
According to one embodiment of present invention, the edge of a knife flange is stainless steel material.
According to one embodiment of present invention, the edge of a knife flange upper limit has multiple and accelerating tube longitudinal axis surely
The parallel location hole in direction.
The positive effect of the present invention is：
Accelerating tube of the present invention is reduced to process equipment on the basis of it ensure that the vacuum enhancing requirement of accelerating tube
It is required that there are more selectivity to the model of hydrogen stove, so that overall reduce the processing cost of accelerating tube, and welding matter ensure that
Amount.
Brief description of the drawings
The present invention the above and other feature, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, reference numeral identical in the accompanying drawings represents identical feature all the time, wherein：
Fig. 1 is the stereogram that a kind of accelerating tube of the present invention is assembled by three sections of accelerating tubes.Wherein, which can be
Middle energy accelerating tube.
Fig. 2 is the schematic diagram of the fitting surface connection of adjacent two sections of accelerating tubes in a kind of accelerating tube of the present invention.Wherein, the acceleration
Pipe can be middle energy accelerating tube.
Embodiment
For the above objects, features and advantages of the present invention can be become apparent, the tool below in conjunction with attached drawing to the present invention
Body embodiment elaborates.
The embodiment of the present invention is described with detailed reference to attached drawing now.It is preferable to carry out now with detailed reference to the present invention
Example, its example are shown in the drawings.In the case of any possible, phase will be represented using identical mark in all of the figs
Same or similar part.
In addition, although the term used in the present invention is selected from public term, but the present invention is said
Some terms mentioned in bright book are probably that applicant carrys out selection by his or her judgement, its detailed meanings is retouched this paper's
Illustrate in the relevant portion stated.
In addition, it is desirable to not only by used actual terms, and be also to the meaning contained by each term
To understand the present invention.
Fig. 1 is the stereogram that a kind of accelerating tube of the present invention is assembled by three sections of accelerating tubes.Fig. 2 accelerates for the present invention is a kind of
The schematic diagram of the fitting surface connection of adjacent two sections of accelerating tubes in pipe.
As depicted in figs. 1 and 2, the invention discloses a kind of accelerating tube 10, it includes the sequentially connected accelerating tube pipe of multistage
Section.The accelerating tube 10 includes three sections of accelerating tube pipeline sections 101,103,105.Although accelerating tube 10 disclosed in the diagram of the present invention includes
The accelerating tube pipeline section of three sections of connections, it is to be understood that, middle energy accelerating tube can only include two sections of accelerating tube pipeline sections or including more
In three sections of accelerating tube pipeline section, this is all feasible.
In the following embodiments, the accelerating tube is middle energy accelerating tube, however, those of ordinary skill in the art can manage
Solution, the description below of the invention are readily applicable to high energy acceleration pipe.
As depicted in figs. 1 and 2, each accelerating tube pipeline section is included in the vertical along linear extension and cylindrical first
Body, defines multiple accelerating cavities coupled to each other in it.Also protruded outward on the surface of the first noumenon multiple basic in half
The second cylindric body, defines the coupler coupled with accelerating cavity in the second body, in the dress of neighbouring accelerating tube pipeline section
At the S1 of surface, the first noumenon is also formed with the annular installation base protruded outward, the installation base perpendicular to accelerating tube pipe
One side of the longitudinal axis of section is alignd with assembly surface S1, and the outer ring surface of the installation base is step-like.It can manage
Solution, the mounting platform can be integral with the first noumenon or be process respectively.In accelerating tube pipeline section 103
Both ends, are respectively and fixedly provided with connecting flange 20 on installation base.Specifically, which is edge of a knife flange.More specifically, the knife-edge method
Orchid is CF edge of a knife flanges.Flange 20 is fixed on installation base by way of such as welding.Specifically, the internal diameter quilt of flange 20
It is arranged to be enough to make its flange 20 be nested on the outer circumferential surface of the installation base.
More preferably, as depicted in figs. 1 and 2, the internal diameter of the flange 20 is configured to just make flange 20 be nested into the acceleration
On the outer circumferential surface of the installation base of pipe pipeline section 103.In this way, the annular ledge surface of flange 20 outer shroud with installation base just
Shape ledge surface is adapted to.Further, when the flange 20 circular ring shape inner surface by way of such as welding with accelerating tube pipe
After the installation base of section 103 links together, the side S2 essence of the longitudinal axis perpendicular to accelerating tube 10 of flange 20
It is upper to align with the assembly surface S1 of accelerating tube pipeline section 103.20 compartment of terrain of flange is disposed with multiple (for example, arrangements two) and its axis
The parallel pin hole in line direction is in order to being aligned and can be passed through by such as pin with against the pin hole of another flange thereon.
Preferably, the through hole on flange 20 is arranged symmetrically.20 compartment of terrain of flange is disposed with multiple and its axis direction
Parallel through hole with the through-hole alignment against another flange thereon by fastener such as bolt 40 in order to can simultaneously be passed through.
Preferably, the through hole on flange 20 is arranged symmetrically.Flange 20 can be used with the accelerating tube spool piece body
Different materials are made.In general, the material of accelerating tube spool piece body can include copper, such as oxygen-free copper, the material of flange can be with
Including stainless steel.
The second segment of accelerating tube pipeline section 101 is installed to the first end of accelerating tube pipeline section 103, and the first of accelerating tube pipeline section 101
End is used to be connected to electron gun device, and on the whole, accelerating tube pipeline section 101 is located at the line upstream side of accelerating tube pipeline section 103.Accelerate
The first end of pipe pipeline section 105 is installed to the second end of accelerating tube pipeline section 103, and the second end of accelerating tube pipeline section 105 is used to be connected to
Target assembly etc., on the whole, accelerating tube pipeline section 105 are located at the line downstream of accelerating tube pipeline section 103.Therefore, accelerating tube pipeline section 101
Second end and accelerating tube pipeline section 105 first end, its structure and the structure of foregoing accelerating tube pipeline section 103 are essentially identical
, the first end of accelerating tube pipeline section 101 and the second end of accelerating tube pipeline section 105 slightly have not with previously described connection structure
Together.For example, for accelerating tube pipeline section 101, the pipe side of 101 first end of accelerating tube pipeline section is (perpendicular to accelerating tube pipeline section
Longitudinal axis) mounting flange, the flange it can be used for the connection of Subsequent electronic rifle equipment in a manner of directly by such as welding.It is right
For accelerating tube pipeline section 105, the pipe side of 105 second end of accelerating tube pipeline section can (perpendicular to the longitudinal axis of accelerating tube pipeline section)
The mounting flange in a manner of by such as welding, the flange are used for the connection of follow-up target assembly.In addition, for accelerating tube pipeline section
101, microwave input hole is also formed with thereon.
During installation, the first end of accelerating tube pipeline section 103 is connected to the second end of accelerating tube pipeline section 101, the connection of its second end
To the first end of accelerating tube pipeline section 105.Connection mode is essentially identical, specifically, is supported each pipeline section by fixture,
Between the flange of accelerating tube pipeline section 103 and accelerating tube pipeline section 101 and the method for accelerating tube pipeline section 103 and accelerating tube pipeline section 105
Packing ring is arranged between orchid, the pin hole of the flange of pipeline section 101,105 is aligned with the pin hole of the flange of pipeline section 103 and allows pin to wear
Cross and positioned.Then, fastened with bolt through the through hole of each two flange and with nut.
More preferably, each bolt is tightened according to essentially identical torque.Preferably, foregoing gasket is copper washer 30.Finally,
Accelerating tube pipeline section connects to form a complete middle energy accelerating tube.In foregoing installation operation, each bolt is with substantially same
Torque is tightened, it is ensured that the straightness of accelerating tube.
By testing the middle energy accelerating tube of said structure, test effect can make it.
In an exemplary embodiment of the present invention, the length range of accelerating tube pipeline section is 400-500mm.More specifically,
In the present embodiment, the length of accelerating tube pipeline section 101 is about 430mm, and the length of accelerating tube pipeline section 103 is about 450mm, and is accelerated
The length of pipe pipeline section 105 is about 420mm.This exemplary accelerating tube pipeline section can use the hydrogen stove of small volume to carry out pricker
Weldering, for example, welding can be achieved for the hydrogen stove of 3m or so by height.In this way, ensure the quality of final finished accelerating tube
While, processing and manufacturing cost is reduced, improves the versatility of hydrogen stove welding equipment.
In an exemplary embodiment of the present invention embodiment, on the one hand, accelerating tube be divide into three sections of accelerating tube pipeline sections, the opposing party
Face, the edge of a knife flange for additionally using the stainless steel material different from copper product connect accelerating tube pipeline section, and another further aspect, is being installed
When additionally use pin positioning mode.For the edge of a knife flange using stainless steel material, this is because accelerating tube generally copper
Material, if simple be divided into two sections or more than two sections, centre uses the edge of a knife flanged joint of copper product, then easily in two accelerating tubes
Connection between pipe sections occur causing the straightness of finished product accelerating tube not reach the situation of requirement due to tube body insufficient strength, influence to add
The performance of fast tube bundle flow.
Since the accelerating tube in the exemplary embodiment of the present invention uses heterogeneous material welding technique, i.e. in stainless steel
The part at least contacted with copper of edge of a knife flange is surface-treated, nickel plating, convenient to be connect with brazing, strong in two sections of junction welding
More preferable steel flange is spent, greatly increases bonding strength, pin positions the assembly precision requirement that can ensure accelerating tube.By
It is high to the vacuum level requirements in cavity in accelerating tube, therefore the accelerating tube uses the connection mode of CF edge of a knife flanges, through examining
Fully achieve requirement.For example, straightness can reach 0.15mm, concentricity can reach 0.08mm.
On the premise of requirements above is reached, the requirement of the welding of every section of 400-500mm length for hydrogen stove does not include too high.
Accelerating tube in the exemplary embodiment of the present invention is that ensure that the performance requirement of accelerating tube, for example, straightness, concentricity and true
Reciprocal of duty cycle, and the requirement to process equipment is reduced, for example, having more selectivity to the model of hydrogen stove, so that overall reduce
The processing cost of accelerating tube, and ensure that welding quality.
Accelerating tube divide into multistage by conventional accelerating tube compared with the prior art, the present invention.Although it is above with three
It is described exemplified by section accelerating tube pipeline section, but it is also feasible that accelerating tube only is divided into two sections.If accelerating tube is divided into two
Section, the length range of every section of accelerating tube pipeline section can be 500-750mm, or can be 600-750mm.Certainly, by accelerating tube
The accelerating tube pipeline section being divided into more than three sections is also feasible.Those of ordinary skill in the art should also be as being appreciated that the present invention not
It is limited to the accelerating tube of electron linear accelerator, accelerating tube of proton linac etc. can also be applied to.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of from the principle of the present invention and essence, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (17)
1. a kind of accelerating tube, it is characterised in that the accelerating tube includes at least two sections of sequentially connected accelerating tube pipeline sections.
2. accelerating tube according to claim 1, it is characterised in that one section of length of at least two sections accelerating tube pipeline sections
No more than 750mm.
3. accelerating tube according to claim 2, it is characterised in that one section of length of at least two sections accelerating tube pipeline sections
No more than 600mm.
4. accelerating tube according to claim 3, it is characterised in that one section of length of at least two sections accelerating tube pipeline sections
No more than 500mm.
5. accelerating tube according to claim 1, it is characterised in that one section of length of at least two sections accelerating tube pipeline sections
For 400-500mm.
6. accelerating tube according to claim 1, it is characterised in that at least one end of the accelerating tube pipeline section is welded with method
Orchid, further includes packing ring between the two accelerating tubes pipeline section, and the flange is configured to when installing two accelerating tube pipeline sections, when two
The end surfaces of accelerating tube pipeline section against each other when, the flange passes through the washer sealing.
7. accelerating tube according to claim 6, it is characterised in that the flange is CF edge of a knife flanges.
8. accelerating tube according to claim 7, it is characterised in that the material of the CF edges of a knife flange and the accelerating tube pipeline section
Material is different.
9. accelerating tube according to claim 8, it is characterised in that the material of the CF edges of a knife flange includes stainless steel, institute
Stating the material of accelerating tube pipeline section includes copper.
10. accelerating tube according to claim 6, it is characterised in that the multiple and accelerating tube is defined on the flange
Longitudinal axis the parallel location hole in direction.
11. accelerating tube according to claim 1, it is characterised in that the accelerating tube is middle energy accelerating tube or high energy acceleration
Pipe.
12. a kind of accelerating tube, it is characterised in that the accelerating tube includes the first accelerating tube pipe for defining the first beam channel
Section, define the second accelerating tube pipeline section of the second beam channel, define the 3rd accelerating tube pipeline section of the 3rd beam channel；It is described
The first end of first accelerating tube pipeline section is used to be connected to electron gun device, its second end is connected to the second accelerating tube pipeline section
First end；The first end of the 3rd accelerating tube pipeline section is connected to the second end of the second accelerating tube pipeline section, its second end is used
In being connected to target assembly, wherein, first beam channel, second beam channel and the 3rd beam channel are in same straight line
On.
13. accelerating tube according to claim 12, it is characterised in that the first accelerating tube pipeline section, the second accelerating tube pipe
One section of length in section and the 3rd accelerating tube pipeline section is not more than 500mm.
14. accelerating tube according to claim 13, it is characterised in that the first accelerating tube pipeline section, described second accelerate
Pipe pipeline section and the described 3rd accelerates the length of one in pipeline section in 400-500mm.
15. accelerating tube according to claim 12, it is characterised in that the first accelerating tube pipeline section accelerates with described second
Pipe pipeline section and the second accelerating tube pipeline section and the 3rd accelerating tube pipeline section are by being respectively fixed to first acceleration
Pipe pipeline section, the second accelerating tube pipeline section and the edge of a knife flanged joint on the 3rd accelerating tube pipeline section.
16. accelerating tube according to claim 15, it is characterised in that the edge of a knife flange is stainless steel material.
17. accelerating tube according to claim 15, it is characterised in that the edge of a knife flange upper limit have surely it is multiple with it is described plus
The parallel location hole in the longitudinal axis direction of fast pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183758.3A CN107960003A (en) | 2017-11-23 | 2017-11-23 | Accelerating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183758.3A CN107960003A (en) | 2017-11-23 | 2017-11-23 | Accelerating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107960003A true CN107960003A (en) | 2018-04-24 |
Family
ID=61961788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183758.3A Pending CN107960003A (en) | 2017-11-23 | 2017-11-23 | Accelerating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107960003A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099503A (en) * | 2019-06-12 | 2019-08-06 | 中广核中科海维科技发展有限公司 | A kind of accelerating tube elastic support |
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| CN203039994U (en) * | 2012-12-25 | 2013-07-03 | 江苏达胜加速器制造有限公司 | Accelerating tube |
| CN104134469A (en) * | 2014-07-01 | 2014-11-05 | 兰州大学 | High-current ion beam accelerating tube applied to fusion reaction accelerator neutron source |
| CN204029390U (en) * | 2014-07-01 | 2014-12-17 | 兰州大学 | A kind of intense pulsed ion beam accelerating tube for fusion reaction accelerator neutron generator |
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| CN110099503A (en) * | 2019-06-12 | 2019-08-06 | 中广核中科海维科技发展有限公司 | A kind of accelerating tube elastic support |
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Application publication date: 20180424 |
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