CN105070343A - X-ray conversion target - Google Patents
X-ray conversion target Download PDFInfo
- Publication number
- CN105070343A CN105070343A CN201510545054.0A CN201510545054A CN105070343A CN 105070343 A CN105070343 A CN 105070343A CN 201510545054 A CN201510545054 A CN 201510545054A CN 105070343 A CN105070343 A CN 105070343A
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- CN
- China
- Prior art keywords
- conversion target
- ray
- ray conversion
- plate
- base
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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
- G21K5/00—Irradiation devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Particle Accelerators (AREA)
Abstract
The present invention discloses an X-ray conversion target comprising a panel and a base. The middle parts of the panel and the base are provided with openings along the length directions. The openings between the panel and the base are fixedly provided with a bombardment plate. Through installing the X-ray conversion target under an accelerator scanning window, the X-ray conversion target is bombarded by electron beams, and thus an X ray is obtained. Since the X ray has high penetrability, when a penetration requirement can not be satisfied by electron accelerator electronic irradiation, an X-ray irradiation product is obtained through bombarding the X-ray conversion target by the electron beams, and existing cobalt-60 radioactive source irradiation can be replaced.
Description
Technical field
The present invention relates to a kind of X-ray conversion target, be specifically related to the conversion target that the bombardment of a kind of high-power electron beam produces X ray, belong to radiation processing technology field.
Background technology
What the electron accelerator irradiation on conventional art adopted is that the high energy electron product irradiation that electron accelerator produces carries out modification to product.
For the product of high density irradiation, use cobalt-60 radioactive isotope at present, the application of cobalt-60 radioactive source widely, almost spreads all trades and professions, agriculturally be usually used in radioactive breeding, stimulating volume increase, radiation pest control and food irradiation preservation and fresh-keeping etc.But cobalt-60 is as radioactive isotope power supply, its half life period is 5.27, that is no matter whether this radiation source is aborning all in decay, therefore source or increasing source must be filled to maintain original irradiation ability to radioactive source every year, current increase price is very expensive is almost more than 30% of annual value of production, and benefit its cost poorer is higher.
Cobalt-60 radioactive source carries out irradiation with anti-the terminating in radiation chamber of the form such as source rod, block, under not used time utilizes lifter that radioactive source is down to well, and ensure safety depth, to ensure the personnel's personal safety entering radiation chamber, but occur repeatedly because elevator malfunctions causes card source accident at home, because radiation source has radiativity, personnel cannot directly keep in repair, radiation source is continuous emitting radiation in radiation chamber, cause that product temperature is too high to be burnt, relevant irradiation inside plant such as to burn at the major accident.Radioactive source also occurred repeatedly losing event at home, caused no small impact.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of X-ray conversion target, under being arranged on accelerator scanning window, by beam bombardment X-ray conversion target, thus obtains X ray; Because X ray has high-penetrability, therefore electron accelerator electron irradiation cannot meet penetrate require time, obtain x-ray irradiation product by beam bombardment X-ray conversion target, and replaceable existing cobalt-60 radioactive source radiation.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of X-ray conversion target, comprise panel and base, the middle part of described panel and base is provided with perforate along its length, and the tapping between described panel and base is fixedly installed bombardment plate.
Aforesaid a kind of X-ray conversion target, is characterized in that: be provided with the central dividing plate be fixedly connected with described base below described bombardment plate, and form cooling chamber between described central dividing plate and described bombardment plate, the two ends of described cooling chamber are provided with water pipe head.
Aforesaid a kind of X-ray conversion target, is characterized in that: be also provided with O-ring seal between described bombardment plate and central dividing plate.
Aforesaid a kind of X-ray conversion target, is characterized in that: described bombardment plate is that pure tantalum is made.
Aforesaid a kind of X-ray conversion target, is characterized in that: the material of described panel and base plate is 304,316, one in 316L or 321 stainless steels.
Aforesaid a kind of X-ray conversion target, is characterized in that: described panel is fixedly connected with by multiple bolt with base plate.
Aforesaid a kind of X-ray conversion target, is characterized in that: described central dividing plate and described base plate are formed in one structure.
Aforesaid a kind of X-ray conversion target, is characterized in that: described central dividing plate is welded on described base plate.
Aforesaid a kind of X-ray conversion target, is characterized in that: be low calcium content soft water or pure water for hydronic chilled water in described cooling chamber.
The invention has the beneficial effects as follows:
1, under being arranged on accelerator scanning window by employing X-ray conversion target, by beam bombardment X-ray conversion target, thus X ray is obtained; Because X ray has high-penetrability, therefore electron accelerator electron irradiation cannot meet penetrate require time, obtain x-ray irradiation product by beam bombardment X-ray conversion target; When x-ray irradiation low dosage, high density product, advantage is particularly outstanding, especially has leading superiority in fields such as food irradiation, medicine equipment irradiation;
2 and replaceable existing cobalt-60 radioactive source radiation, when electron accelerator high-power electron beam bombardment bombardment plate, in bombardment plate, there is bremsstrahlung (a kind of radiation that high energy charged particles produces when slowing down suddenly) and producing X ray, therefore do not have ray to produce when electron accelerator closes tester in power-down state, maintenance of equipment, personal security are had a good guarantee.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of X-ray conversion target of the present invention;
Fig. 2 is the cut-open view of a kind of X-ray conversion target of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is described further.
As depicted in figs. 1 and 2, a kind of X-ray conversion target, comprise panel 1 and base 3, the middle part of described panel 1 and base 3 is provided with perforate along its length, tapping between described panel 1 and base 3 is fixedly installed bombardment plate 2, in the present embodiment, panel 1 is fixedly connected with by multiple bolt 7 with base plate 3.
Under being arranged on accelerator scanning window by adopting X-ray conversion target, during bombardment plate 2 by beam bombardment X-ray conversion target, obtain X ray; Because X ray has high-penetrability, therefore electron accelerator electron irradiation cannot meet penetrate require time, obtain x-ray irradiation product by beam bombardment X-ray conversion target; When x-ray irradiation low dosage, high density product, advantage is particularly outstanding, especially has leading superiority in fields such as food irradiation, medicine equipment irradiation.
And replaceable existing cobalt-60 radioactive source radiation, when electron accelerator high-power electron beam bombardment bombardment plate, in bombardment plate, there is bremsstrahlung (a kind of radiation that high energy charged particles produces when slowing down suddenly) and producing X ray, therefore do not have ray to produce when electron accelerator closes tester in power-down state, maintenance of equipment, personal security are had a good guarantee.
In the present invention, bombardment plate 2 is made for pure tantalum, tantalum is heavy metal, density is 16.6g/cm3, the bremstrahlen produced when bombarding due to the larger high energy charged particles of density of material is larger, therefore bombard plate to be made by heavy metal, talented abroad have gold to make, but the cost due to gold is too high generally not to be used, tungsten is also can as the bombardment plate material of X-ray conversion target, its conversion efficiency and tantalum similar, but the chemical-resistance of tantalum is better than tungsten, therefore adopt tantalum as bombardment plate material, the material of panel 1 and base plate 3 is 304, 316, one in the high-quality stainless steels such as 316L or 321, improve the serviceable life of equipment.
During high-power electron beam bombardment X-ray conversion target, the conversion ratio of the X ray of generation is lower, is about and usually only has about 5-7%, and most of energy of high-power electron beam is all absorbed by target, produces heat.If heat can not distribute in time, then target can be caused to burn out, the life-span of X-ray conversion target can be reduced and affect production shutdown, affecting production efficiency.Therefore below bombardment plate 2, the central dividing plate 8 be fixedly connected with described base 3 is provided with, cooling chamber 6 is formed between described central dividing plate 8 and described bombardment plate 2, the two ends of described cooling chamber 6 are provided with water pipe head 5, carry out circulating cooling by water pipe head 5 pairs of cooling chambers, ensure that the serviceable life of X-ray conversion target.Wherein, be low calcium content soft water or pure water for hydronic chilled water in described cooling chamber 6, low calcium content soft water or pure water are mainly in order to prevent fouling, and due to conversion target, operationally temperature is very high, as adopted regular tap water meeting fouling very serious, reduce the life-span of conversion target.
In the present embodiment, be also provided with O-ring seal 4 between described bombardment plate 2 and central dividing plate 8, described central dividing plate 8 and described base plate 3 are formed in one structure, or are welded on described base plate 3, ensure that the sealing of cooling chamber 6,
In sum, a kind of X-ray conversion target provided by the invention, under being arranged on accelerator scanning window, by beam bombardment X-ray conversion target, thus obtains X ray; Because X ray has high-penetrability, therefore electron accelerator electron irradiation cannot meet penetrate require time, obtain x-ray irradiation product by beam bombardment X-ray conversion target, and replaceable existing cobalt-60 radioactive source radiation.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is by appending claims and equivalent circle thereof.
Claims (9)
1. an X-ray conversion target, comprise panel (1) and base (3), it is characterized in that: the middle part of described panel (1) and base (3) is provided with perforate along its length, the tapping between described panel (1) and base (3) is fixedly installed bombardment plate (2).
2. a kind of X-ray conversion target according to claim 1, it is characterized in that: described bombardment plate (2) below is provided with the central dividing plate (8) be fixedly connected with described base (3), form cooling chamber (6) between described central dividing plate (8) and described bombardment plate (2), the two ends of described cooling chamber (6) are provided with water pipe head (5).
3. a kind of X-ray conversion target according to claim 2, is characterized in that: be also provided with O-ring seal (4) between described bombardment plate (2) and central dividing plate (8).
4. a kind of X-ray conversion target according to claim 1, is characterized in that: described bombardment plate (2) is made for pure tantalum.
5. a kind of X-ray conversion target according to claim 1, is characterized in that: the material of described panel (1) and base plate (3) is 304,316, one in 316L or 321 stainless steels.
6. a kind of X-ray conversion target according to claim 1, is characterized in that: described panel (1) is fixedly connected with by multiple bolt (7) with base plate (3).
7. a kind of X-ray conversion target according to claim 2, is characterized in that: described central dividing plate (8) and described base plate (3) are formed in one structure.
8. a kind of X-ray conversion target according to claim 2, is characterized in that: described central dividing plate (8) is welded on described base plate (3).
9. a kind of X-ray conversion target according to claim 2, is characterized in that: be low calcium content soft water or pure water for hydronic chilled water in described cooling chamber (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545054.0A CN105070343A (en) | 2015-08-31 | 2015-08-31 | X-ray conversion target |
| PCT/CN2015/098702 WO2017036015A1 (en) | 2015-08-31 | 2015-12-24 | X-ray conversion target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545054.0A CN105070343A (en) | 2015-08-31 | 2015-08-31 | X-ray conversion target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105070343A true CN105070343A (en) | 2015-11-18 |
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ID=54499696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510545054.0A Pending CN105070343A (en) | 2015-08-31 | 2015-08-31 | X-ray conversion target |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105070343A (en) |
| WO (1) | WO2017036015A1 (en) |
Cited By (3)
| 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 |
| WO2017036015A1 (en) * | 2015-08-31 | 2017-03-09 | 中广核达胜加速器技术有限公司 | X-ray conversion target |
| CN111403073A (en) * | 2020-03-19 | 2020-07-10 | 哈尔滨工程大学 | Multipurpose terminal based on electron accelerator |
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| US20070237296A1 (en) * | 2004-09-13 | 2007-10-11 | Wyatt Jeffrey D | Decontamination using planar X-ray sources |
| WO2008078477A1 (en) * | 2006-12-22 | 2008-07-03 | Stanley Electric Co., Ltd. | X-ray generating apparatus |
| JP2008268105A (en) * | 2007-04-24 | 2008-11-06 | Toshiba Corp | X-ray beam source, x-ray beam irradiator, x-ray beam radiographic device, x-ray beam computer tomography device, x-ray element mapping examination apparatus and x-ray beam forming method |
| CN103578894A (en) * | 2013-10-28 | 2014-02-12 | 中国科学院上海应用物理研究所 | X-ray converting target |
| CN204926816U (en) * | 2015-08-31 | 2015-12-30 | 中广核达胜加速器技术有限公司 | X ray conversion target |
Family Cites Families (6)
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| US4980901A (en) * | 1988-09-09 | 1990-12-25 | The Titan Corporation | Apparatus for and methods of detecting common explosive materials |
| US6907106B1 (en) * | 1998-08-24 | 2005-06-14 | Varian Medical Systems, Inc. | Method and apparatus for producing radioactive materials for medical treatment using x-rays produced by an electron accelerator |
| CN202651055U (en) * | 2011-11-28 | 2013-01-02 | 天津市技术物理研究所 | X ray converter target |
| CN103208318A (en) * | 2013-03-21 | 2013-07-17 | 无锡爱邦辐射技术有限公司 | High-power irradiation accelerator X-ray conversion target and high-power irradiation accelerator X-ray conversion device |
| CN203689930U (en) * | 2014-01-20 | 2014-07-02 | 汇佳生物仪器（上海）有限公司 | Two-dimensional scanning high-energy X-ray irradiation system of electron linear accelerator |
| CN105070343A (en) * | 2015-08-31 | 2015-11-18 | 中广核达胜加速器技术有限公司 | X-ray conversion target |
-
2015
- 2015-08-31 CN CN201510545054.0A patent/CN105070343A/en active Pending
- 2015-12-24 WO PCT/CN2015/098702 patent/WO2017036015A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070237296A1 (en) * | 2004-09-13 | 2007-10-11 | Wyatt Jeffrey D | Decontamination using planar X-ray sources |
| WO2008078477A1 (en) * | 2006-12-22 | 2008-07-03 | Stanley Electric Co., Ltd. | X-ray generating apparatus |
| JP2008268105A (en) * | 2007-04-24 | 2008-11-06 | Toshiba Corp | X-ray beam source, x-ray beam irradiator, x-ray beam radiographic device, x-ray beam computer tomography device, x-ray element mapping examination apparatus and x-ray beam forming method |
| CN103578894A (en) * | 2013-10-28 | 2014-02-12 | 中国科学院上海应用物理研究所 | X-ray converting target |
| CN204926816U (en) * | 2015-08-31 | 2015-12-30 | 中广核达胜加速器技术有限公司 | X ray conversion target |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036015A1 (en) * | 2015-08-31 | 2017-03-09 | 中广核达胜加速器技术有限公司 | X-ray conversion target |
| 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 |
| CN111403073A (en) * | 2020-03-19 | 2020-07-10 | 哈尔滨工程大学 | Multipurpose terminal based on electron accelerator |
| CN111403073B (en) * | 2020-03-19 | 2023-01-03 | 哈尔滨工程大学 | Multipurpose terminal based on electron accelerator |
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| Publication number | Publication date |
|---|---|
| WO2017036015A1 (en) | 2017-03-09 |
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Application publication date: 20151118 |
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