CN103578596A - X-ray converting target - Google Patents
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- CN103578596A CN103578596A CN201310521465.7A CN201310521465A CN103578596A CN 103578596 A CN103578596 A CN 103578596A CN 201310521465 A CN201310521465 A CN 201310521465A CN 103578596 A CN103578596 A CN 103578596A
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Abstract
本发明公开了一种X射线转换靶，其包括一基体和一靶层板，该基体包括一基板和一固设于该基板周壁上的框架，该靶层板可拆卸式连接有该框架；该基板上固设于至少一与该框架的一端固接的导向板，该些导向板均位于该基板与该靶层板之间，并与该基板、该框架和该靶层板围绕形成有一冷却剂层；该冷却剂层包括至少一进流道和至少一出流道，各该进流道的一端用于通入冷却剂，另一端与各该出流道相连通，各该出流道的一端用于流出冷却剂。本发明在保证大功率或超大功率电子束转换成X射线的转换效率高的同时，实现转换靶的温度稳定性，避免热应力和热形变，提高了转换靶的使用寿命。
The invention discloses an X-ray conversion target, which includes a base body and a target layer plate, the base body includes a base plate and a frame fixed on the peripheral wall of the base plate, and the target layer plate is detachably connected with the frame; At least one guide plate fixed to one end of the frame is fixed on the base plate, and the guide plates are all located between the base plate and the target plate, and form a circle around the base plate, the frame, and the target plate Coolant layer; the coolant layer includes at least one inlet channel and at least one outlet channel, one end of each inlet channel is used to feed coolant, the other end communicates with each outlet channel, and each outlet channel One end of the channel is used for outflow of coolant. The invention not only ensures high conversion efficiency of high-power or super-high-power electron beams into X-rays, but also realizes the temperature stability of the conversion target, avoids thermal stress and thermal deformation, and improves the service life of the conversion target.
Description
Technical field
The present invention relates to a kind of X ray conversion target.
Background technology
Come from the advantage of X ray in penetrability, irradiation industry to electron beam turn X ray proposed in the urgent need to.If can convert powerful 5～10MeV electron beam to X ray, its penetration capacity and working ability can be compared with Co-60 γ irradiation bomb.Make so existing accelerator irradiation device applicable surface wider, and strengthen the dirigibility of its operation, can also directly substitute a part of Co-60 irradiation devices.
But it is fewer that electron beam converts the share that beam energy in the process of X ray converts X ray energy to, and more than 80%～90% energy all discharges the form with hot.For guaranteeing conversion efficiency, the gauge of conversion target is all smaller conventionally, and the scanning plane of electron beam has certain limitation conventionally.Therefore,, in order to solve the heat dissipation problem of high-power X ray conversion in certain volume, need to realize cooling medium heat interchange efficiently under target body limited bulk and thickness.
A kind of high-power irradiation accelerator X ray conversion target is disclosed in Chinese invention patent application instructions CN201310091694.X, as shown in Figures 1 to 3, it comprises target body and target body cooling device this X ray conversion target, described target body comprise tantalum plate 3 ' and copper coin 4 ', described tantalum plate 3 ' front surface is used for accepting electronic beam current and is converted to X ray, and tantalum plate 3 ' rear surface and copper coin 4 ' front surface are welded as a whole; Described target body cooling device comprise two main cooling tubes 1 ' and many cooling tubes 2 ', many described cooling tubes 2 ' be arranged in parallel, be welded on described copper coin 4 ' rear surface, many cooling tubes 2 of two described main cooling tubes 1 ' be welded on respectively ' two ends and with a cooling tube 2 ' be connected, wherein one main cooling tube 1 ' for passing into liquid coolant, another root is used for exporting liquid coolant.Yet there is following technical matters in this high-power irradiation accelerator X ray conversion target:
(1) many are propped up the rear surface that cooling tube is disposed on copper coin, make in uneven thickness on the same xsect of this copper coin, cause thicker position to absorb more X ray, the share that makes conversion target produce X ray on forward direction is lost, and conversion efficiency reduces;
(2) position that this target xsect mass thickness is thinner will transmit electron beam, makes X ray in irradiation process, and electron beam produces interference effect to X ray, affects the quality of irradiation products;
(3) type of cooling of this X ray conversion target adopts unidirectional runner, causes, the entering and flow out the inhomogeneous of two ends temperature of cooling medium, producing the harmful effect of thermal stress and thermal deformation;
(4) this structure can not realize directly cooling to converting member of cooling medium, between need through cooling tube wall, cooling tube and copper coin surface of contact etc., will be not enough to some extent on exchange capability of heat.
Prior art:
Main cooling tube: a 1 ' cooling tube: 2 ' tantalum plate: 3 '
Copper coin: 4 '
The present invention:
Matrix: 1 target layer plate: 2 sealing flanging assemblies: 3
Screw: 4 O-ring seals: 5 through holes: 6
Adapter assembly: 7 influent stream roads: 8 go out runner: 9
Guide plate: 10 frameworks: 11 link slots: 12
Substrate: 13
Summary of the invention
The technical problem to be solved in the present invention is to overcome that X ray conversion target conversion efficiency in prior art is low, electron beam produces the defect of interfering, easily produce thermal stress and thermal deformation to X ray, and a kind of X ray conversion target is provided.
The present invention solves above-mentioned technical matters by following technical proposals:
A conversion target, comprises a matrix and a target layer plate, and its feature is, this matrix comprises that a substrate and is fixedly arranged on the framework on this substrate perisporium, detachable this framework that is connected with of this target layer plate;
On this substrate, be fixedly arranged on the affixed guide plate at least one and one end this framework, those guide plates all between this substrate and this target layer plate, and with this substrate, this framework and this target layer plate around being formed with a coolant layer;
This coolant layer comprises at least one influent stream road and at least onely goes out runner, and respectively the one end in this influent stream road is used for passing into cooling medium, and the other end is with respectively this goes out runner and is connected, and respectively this one end that goes out runner is for flowing out cooling medium.
In this programme, when electron beam and target slab effect, convert X ray to.Wherein, target layer plate produces X ray, and the while is absorption of x-rays also.Coolant layer is arranged between substrate and target layer plate, make the even thickness of the same xsect of this substrate, can guarantee at high-power or super high power, conversion efficiency to be required under higher occasion, coolant layer and substrate absorb the electron beam through the transmission of target layer plate completely, wherein remaining most beam energy will be deposited in substrate, avoid electron beam to transmit from substrate, the irradiation of X ray is produced and interfered, affect the quality of irradiation products; In addition, this coolant layer comprises influent stream road and goes out runner, adopts this reciprocal fluidal texture, not only the heat of conversion target accumulation when working is taken away in time, also can realize the temperature stability of conversion target, avoid thermal stress and thermal deformation, improve conversion target serviceable life.
Preferably, between this target layer plate and this framework, for screw is connected, this target layer plate is connected with this frame seal by an O-ring seal.
In this programme, adopt said structure form, be convenient to this conversion target dismounting, fixing, can guarantee the sealing of this conversion target simultaneously, avoid the cooling medium that passes into coolant layer to overflow from the side of this matrix.
Preferably, this X ray conversion target also comprises a sealing flanging assembly, and sealing flanging assembly and this target layer plate, framework are affixed, and is positioned at the top of this target layer plate.
In this programme, seal tightness and the sealing that can further guarantee between target layer plate and matrix that arrange of flanging assembly.
Preferably, the quantity of this guide plate is two, and two these guide plates are set in parallel on this substrate.
Preferably, the quantity in this influent stream road is one, and this quantity that goes out runner is two, this influent stream road two this go out between runner.
In this programme, this influent stream road goes out between runner at two, makes cooling medium flowing for reciprocating in the target body of conversion target, is conducive to guarantee the homogeneity of the Temperature Distribution in conversion target.
Preferably, one sidewall of this framework is provided with three through holes, respectively one end of this through hole is connected with an ooling channel by an adapter assembly respectively, and the other end of one of them this through hole is connected with this influent stream road, the other end of two other this through hole respectively with one this go out runner and be connected.
Preferably, one end of this substrate is provided with three link slots, respectively one end of this link slot is connected with this through hole respectively, and the other end of one of them this link slot is connected with this influent stream road, the other end of two other this link slot respectively with one this go out runner and be connected.
Preferably, this target layer plate is shaped as circular arc.
In this programme, this target layer plate be shaped as circular arc, the end face of target layer plate and the shape of bottom surface are circular arc, pressure coolant is pointed to outer normal direction to wall pressure, by tangential equalization of strain.Make like this pressure of cooling medium at thickness direction (radially), cause deformation quantity seldom to target, therefore, between this target layer plate and matrix, without increasing extra fixed sturcture, be used for resisting the deformation that pressure coolant is brought it.
Preferably, respectively on this influent stream road and respectively, this goes out on runner to be equipped with one group of bar groove, and each is organized this groove and comprises several grooves, and several these grooves arrange along this substrate length direction spaced and parallel.
In this programme, adopt said structure form, can strengthen the exchange capability of heat of cooling medium and matrix.
Preferably, respectively this groove be shaped as herringbone.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
X ray conversion target of the present invention guarantee high-power or super high power electron beam convert to the conversion efficiency of X ray high in, realize the temperature stability of conversion target, avoid thermal stress and thermal deformation, improved the serviceable life of conversion target; In addition, avoid electron beam to transmit from substrate, X ray is produced and interfered, affected the quality of irradiation products.
Accompanying drawing explanation
Fig. 1 is the structural representation of the X ray conversion target of prior art.
Fig. 2 is the vertical view corresponding with Fig. 1.
Fig. 3 is the enlarged drawing of A part in Fig. 2.
Fig. 4 is the structural representation of the preferred embodiment of X ray conversion target of the present invention.
Fig. 5 is the blast structural representation corresponding with Fig. 4.
Fig. 6 is the vertical view of matrix in Fig. 5.
Fig. 7 is the full sectional view of the front view corresponding with Fig. 4.
Description of reference numerals:
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
As shown in Figures 4 and 5, X ray conversion target of the present invention comprises a matrix 1 and a target layer plate 2.This matrix 1 comprises that a substrate 13 and is fixedly arranged on the framework 11 on these substrate 13 perisporiums.
Wherein, detachable this framework 11 that is connected with of this target layer plate 2, and this target layer plate 2 is tightly connected with framework 11 by an O-ring seal 5.In the present embodiment, between this target layer plate 2 and this framework 11 for screw is connected.Adopt said structure form to be convenient to this conversion target dismounting, fixing, can guarantee the sealing of this conversion target simultaneously, avoid the cooling medium that passes into coolant layer to overflow from the side of this matrix 1.
In addition, as shown in Figure 7, this X ray conversion target also comprises a sealing flanging assembly 3.Sealing flanging assembly 3 is affixed by some screws 4 and this target layer plate 2, framework 11, and is positioned at the top of this target layer plate 2.Can further guarantee tightness and the sealing between target layer plate 2 and matrix 1 like this.
In addition, as shown in Figure 6, on this substrate 13, be fixedly arranged at least one guide plate 10 affixed with one end this framework.Those guide plates 10 all between this substrate 13 and this target layer plate 2, and with this substrate 13, this framework 11 and this target layer plate 2 around being formed with a coolant layer.
Wherein, this coolant layer comprises at least one influent stream road 8 and at least onely goes out runner 9.The one end in this influent stream road 8 is used for passing into cooling medium, and the other end, with respectively this goes out runner and is connected, is taken away the heat in conversion target in time.
Meanwhile, respectively the circulation of cooling medium in the target body of conversion target, for flowing out cooling medium, realized in this one end that goes out runner 9, guarantees the homogeneity of temperature in conversion target.
In the present embodiment, when electron beam and target layer plate 2, do the used time, convert X ray to.Wherein, target layer plate 2 produces X ray, and the while is absorption of x-rays also.Coolant layer is arranged between substrate 13 and target layer plate 2, make the even thickness of the same xsect of this substrate 13, can guarantee at high-power or super high power, conversion efficiency to be required under higher occasion, coolant layer and substrate 13 absorb the electron beam through 2 transmissions of target layer plate completely, wherein remaining most beam energy will be deposited in substrate 13, avoid electron beam to transmit from substrate 13, the irradiation of X ray is produced and interfered, affect the quality of irradiation products.
In addition, in the whole process of electron beam and conversion target, more than 80% energy discharges with hot form being deposited in target layer plate 2 and matrix 1, needs in time cooling to guarantee normal working temperature.In the present embodiment, this coolant layer comprises influent stream road 8 and goes out runner 9, adopts this reciprocal fluidal texture, not only the heat of conversion target accumulation when working is taken away in time, also can realize the temperature stability of conversion target, avoid thermal stress and thermal deformation, improve conversion target serviceable life.
Preferably, as shown in Figure 6, the quantity of this guide plate 10 is two, and two these guide plates 10 are set in parallel on this substrate 13.Meanwhile, the quantity in this influent stream road 8 is one, and this quantity that goes out runner 9 is two, this influent stream road 8 two this go out between runner 9.
In the present embodiment, this influent stream road 8 goes out between runner 9 at two, makes cooling medium flowing for reciprocating in the target body of conversion target, is conducive to guarantee the homogeneity of the Temperature Distribution in conversion target.
In addition, as shown in Figure 5, a sidewall of this framework 11 is provided with three through holes 6.Respectively one end of this through hole 6 is connected with an ooling channel by an adapter assembly 7 respectively.The other end of one of them this through hole 6 is connected with this influent stream road 8, the other end of two other this through hole 6 respectively with one this go out runner 9 and be connected.
In addition,, as shown in Fig. 5～6, one end of this substrate 13 is provided with three link slots 12.Respectively one end of this link slot 12 is connected with this through hole 6 respectively.The other end of one of them this link slot 12 is connected with this influent stream road 8, the other end of two other this link slot 12 respectively with one this go out runner 9 and be connected.
Preferably, as shown in Figure 5, this target layer plate 2 be shaped as circular arc.
In this enforcement, this target layer plate 2 be shaped as circular arc, the end face of target layer plate 2 and the shape of bottom surface are circular arc, pressure coolant is pointed to outer normal direction to wall pressure, by tangential equalization of strain.Make like this pressure of cooling medium at thickness direction (radially), cause deformation quantity seldom to target, therefore, between this target layer plate 2 and matrix 1, without increasing extra fixed sturcture, be used for resisting the deformation that pressure coolant is brought it.
In actual application process, the material of target layer plate 2 is the effect of existing generation X ray on the one hand, also has the effect of absorption of x-rays simultaneously, and target layer plate 2 adopts tantalum material, and thickness is 1mm, can guarantee that the share of the X ray that under certain energy, electron beam produces is maximum.
Further, respectively on this influent stream road 8 and respectively this goes out on runner 9, to be equipped with one group of bar groove.Each is organized this groove and comprises several grooves, and several these grooves arrange along these substrate 13 length direction spaced and parallel.Can strengthen like this exchange capability of heat of cooling medium and matrix 1.In addition, in the present embodiment, respectively this groove is shaped as herringbone.
In sum, X ray conversion target of the present invention guarantee high-power or super high power electron beam convert to the conversion efficiency of X ray high in, realize the temperature stability of conversion target, avoid thermal stress and thermal deformation, improved the serviceable life of conversion target; In addition, avoid electron beam to transmit from substrate 13, X ray is produced and interfered, affected the quality of irradiation products.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. an X ray conversion target, comprises a matrix and a target layer plate, it is characterized in that, this matrix comprises that a substrate and is fixedly arranged on the framework on this substrate perisporium, detachable this framework that is connected with of this target layer plate;
On this substrate, be fixedly arranged on the affixed guide plate at least one and one end this framework, those guide plates all between this substrate and this target layer plate, and with this substrate, this framework and this target layer plate around being formed with a coolant layer;
This coolant layer comprises at least one influent stream road and at least onely goes out runner, and respectively the one end in this influent stream road is used for passing into cooling medium, and the other end is with respectively this goes out runner and is connected, and respectively this one end that goes out runner is for flowing out cooling medium.
2. X ray conversion target as claimed in claim 1, is characterized in that, between this target layer plate and this framework, for screw is connected, this target layer plate is connected with this frame seal by an O-ring seal.
3. X ray conversion target as claimed in claim 1, is characterized in that, this X ray conversion target also comprises a sealing flanging assembly, and sealing flanging assembly and this target layer plate, framework are affixed, and is positioned at the top of this target layer plate.
4. X ray conversion target as claimed in claim 1, is characterized in that, the quantity of this guide plate is two, and two these guide plates are set in parallel on this substrate.
5. X ray conversion target as claimed in claim 4, is characterized in that, the quantity in this influent stream road is one, and this quantity that goes out runner is two, this influent stream road two this go out between runner.
6. X ray conversion target as claimed in claim 5, it is characterized in that, one sidewall of this framework is provided with three through holes, respectively one end of this through hole is connected with an ooling channel by an adapter assembly respectively, the other end of one of them this through hole is connected with this influent stream road, the other end of two other this through hole respectively with one this go out runner and be connected.
7. X ray conversion target as claimed in claim 6, it is characterized in that, one end of this substrate is provided with three link slots, respectively one end of this link slot is connected with this through hole respectively, the other end of one of them this link slot is connected with this influent stream road, the other end of two other this link slot respectively with one this go out runner and be connected.
8. X ray conversion target as claimed in claim 1, is characterized in that, this target layer plate be shaped as circular arc.
9. the X ray conversion target as described in any one in claim 1～8, it is characterized in that, respectively on this influent stream road and respectively, this goes out on runner to be equipped with one group of bar groove, and each is organized this groove and comprises several grooves, and several these grooves arrange along this substrate length direction spaced and parallel.
10. X ray conversion target as claimed in claim 9, is characterized in that, respectively this groove is shaped as herringbone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521465.7A CN103578596B (en) | 2013-10-28 | 2013-10-28 | X ray conversion target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310521465.7A CN103578596B (en) | 2013-10-28 | 2013-10-28 | X ray conversion target |
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| Publication Number | Publication Date |
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| CN103578596A true CN103578596A (en) | 2014-02-12 |
| CN103578596B CN103578596B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310521465.7A Active CN103578596B (en) | 2013-10-28 | 2013-10-28 | X ray conversion target |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788695A (en) * | 2016-04-22 | 2016-07-20 | 中国原子能科学研究院 | High-power electron irradiation accelerator X ray conversion target |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06162974A (en) * | 1992-11-18 | 1994-06-10 | Toshiba Corp | X-ray tube |
| JPH1187089A (en) * | 1997-09-03 | 1999-03-30 | Mitsubishi Electric Corp | Radiation generator |
| KR101151858B1 (en) * | 2011-09-22 | 2012-06-01 | 주식회사엑스엘 | X-ray generating apparatus having multiple targets and multiple electron beams |
| CN202651055U (en) * | 2011-11-28 | 2013-01-02 | 天津市技术物理研究所 | X ray converter target |
| GB2501357A (en) * | 2012-03-27 | 2013-10-23 | Rigaku Denki Co Ltd | X-Ray generator target |
-
2013
- 2013-10-28 CN CN201310521465.7A patent/CN103578596B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06162974A (en) * | 1992-11-18 | 1994-06-10 | Toshiba Corp | X-ray tube |
| JPH1187089A (en) * | 1997-09-03 | 1999-03-30 | Mitsubishi Electric Corp | Radiation generator |
| KR101151858B1 (en) * | 2011-09-22 | 2012-06-01 | 주식회사엑스엘 | X-ray generating apparatus having multiple targets and multiple electron beams |
| CN202651055U (en) * | 2011-11-28 | 2013-01-02 | 天津市技术物理研究所 | X ray converter target |
| GB2501357A (en) * | 2012-03-27 | 2013-10-23 | Rigaku Denki Co Ltd | X-Ray generator target |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788695A (en) * | 2016-04-22 | 2016-07-20 | 中国原子能科学研究院 | High-power electron irradiation accelerator X ray conversion target |
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Effective date of registration: 20221207 Address after: 201800 Shanghai city Jiading District Road No. 2019 Patentee after: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES Patentee after: Shanghai Alliance Investment Ltd. Address before: 201800 Shanghai city Jiading District Baojia Highway No. 2019 Patentee before: SHANGHAI INSTITUTE OF APPLIED PHYSICS, CHINESE ACADEMY OF SCIENCES |