CN2590132Y - Built-in ion pump type scanning device - Google Patents
Built-in ion pump type scanning device Download PDFInfo
- Publication number
- CN2590132Y CN2590132Y CN 02294955 CN02294955U CN2590132Y CN 2590132 Y CN2590132 Y CN 2590132Y CN 02294955 CN02294955 CN 02294955 CN 02294955 U CN02294955 U CN 02294955U CN 2590132 Y CN2590132 Y CN 2590132Y
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- scan box
- ionic pump
- box
- magnet
- fixed bin
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Abstract
The utility model relates to a built-in ion pump type scanning device belonging to the technical field of radiation processes. The scanning device comprises an electron linear accelerator, a scanning electromagnet and a scanning box. The structure is characterized in that the scanning box forms a rectangular structure positioned vertically or horizontally. The inner upper end of the scanning box is provided with a fixed box with a small anode tube of an ion pump and a cathode titanium plate connected with the fixed box. The front position and the rear position of the outer wall of the scanning box are provided with the ion pump and magnets corresponding to the fixed box. Every magnet is fixed by a magnetic yoke with one winding round. A magnetic field shielding plate connected with the inner wall of the scanning box is arranged between the ion pump and a beam current boundary in the scanning box. The utility model not only optimizes the structure of a vacuum system, but also reduces the loss of flow resistance. The work efficiency of the pumping speed of the ionic pump can be maximally carried out, and at the same time, the utility model is favorable for the self-shielding property and the miniaturization of a scanner.
Description
Technical field
The utility model relates to the radiation processing technology field, particularly is the scanister of radiation source with the electron linear accelerator.
Background technology
The electron beam irradiation treatment technology is ionizing power and a bremsstrahlung effect of utilizing electron beam, makes to be subjected to produce some biology and physical influence according to article, thereby carries out disinfection and deinsectization or change the treatment technology of article physical characteristics.In the prior art, generally use the electron beam that accelerator produces certain energy, these accelerators comprise: row ripple or wave ekctrinl inear accelerator, high direct voltage type accelerator, dynamitron etc.The miniature electric irradiation accelerator generally adopts the electron linear accelerator accelerated electron, electronics after the acceleration drifts about through the scanning electro-magnet scanner uni in the triangle scan box, make electron beam expand to a linear bundle, draw by extraction window again, by mechanical transmission device under the bundle article are passed through linear electron beam evenly by irradiated material, finish irradiation.In order to reduce the loss of electronic beam current in the scan box, scan box all will be pumped into high vacuum with the ionic pump that connects through vacuum pipe, and vacuum tightness is usually 10
-5～10
-6Pa.The shortcoming of this traditional external ionic pump pattern of scan box is that the pumping speed of ionic pump is subjected to the influence of vacuum pipe conductance, and certain vacuum flow resistance loss is arranged; And volume is big, complex contour, is unfavorable for irradiation accelerator miniaturization and self-shileding design.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of this utility model provides a kind of built-in ionic pump formula scanister.It not only can optimize the vacuum system structure, reduces the vacuum flow resistance loss and makes the maximum work efficiency of ionic pump pumping speed performance, is beneficial to the self-shileding and the miniaturization of scanister simultaneously.
In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes with following dual mode:
First kind of implementation is: a kind of built-in ionic pump scanister, it comprises electron linear accelerator, scanning electro-magnet and scan box.The top of scan box is connected with and can and be looped around the scanning electro-magnet of outer wall with the fixing ring flange of accelerator, and the anode high voltage lead-in wire of ionic pump is introduced in the scan box by insulator.The extraction window of the bottom of scan box for constituting with 40～60 μ m titanium foil materials, titanium foil material are fastened on bottom scan box on the flange connecting dish.Its design feature is: described scan box is the vertical placement of rectangle, and two shoulder places, upper end are symmetrical arranged the fixed bin of the little tube of the anode that ionic pump is housed and the cathode titanium plates that is connected with fixed bin in the scan box.On the outer wall of scan box, with the correspondence position of each fixed bin before and after be equipped with the magnet of ionic pump, each magnet is fixed with the yoke that rounds.In scan box, between ionic pump and the electronic beam current border, be provided with the magnetic field shielding plate that is connected with the scan box madial wall.
Second kind of implementation is: a kind of built-in ionic pump scanister, it comprises accelerator, scanning electro-magnet and scan box.One side of scan box is connected with and can and be looped around the scanning electro-magnet of outer wall with the fixing ring flange of accelerator.The anode high voltage lead-in wire of ionic pump is introduced in the scan box by insulator.The extraction window of the bottom of scan box for constituting with 40～60 μ m titanium foil materials, titanium foil material are fastened on bottom scan box on the flange connecting dish.Be provided with formation needed bending magnet in stationary magnetic field district and yoke at the top of ring flange, the outer wall of scan box.Another side of scan box is provided with the electronic beam current measuring appliance.Its design feature is: described scan box is the horizontal placement of rectangle, the upper end is provided with the fixed bin of the little tube of the anode that ionic pump is housed and the cathode titanium plates that is connected with fixed bin in the scan box, on the outer wall of scan box, with the correspondence position of fixed bin before and after be provided with the magnet of ionic pump, each magnet is fixed with the yoke that rounds.In scan box, between ionic pump and the electronic beam current border, be provided with the magnetic field shielding plate that is connected with the scan box madial wall.
According to each above-mentioned technical scheme, being shaped as right-angled trapezium or being rectangle of the described fixed bin that the little tube of anode is housed fixed fixed bin and scan box madial wall by insulator and back up pad.
The utility model is built in vacuum ion pump in the scan box owing to adopted above-mentioned version, has reduced the vacuum flow resistance loss, has improved the work efficiency of ionic pump.Make the one-piece construction simple rule simultaneously, make the self-shileding form compact more, utilize the scanister miniaturization.The utility model can be installed on automobile or the movable trolleys, becomes vehicle-mounted removable radiation sterilization device, can handle for various users carry out radiation sterilization easily.As: the mail radiation sterilization of mail system is handled; Radiation sterilizations such as the operating theater instruments that hospital system is used, injection articles for use, gloves cotton yarn, runoff water are handled; The prepacked food of food industry reaches the purpose of fresh-keeping prolongation shelf life as irradiation deinsectization sterilization treatment such as the rice and wheat flour of instant food, flavouring, fresh and preserved fruit, inner wrapping and coarse cereals; The cosmetics radiation sterilization of cosmetic industry is handled or the like.The self-shileding of the utility model device, miniaturization can be installed on the production line of above-mentioned industry equally easily, and shielding building structure that need not bulky complex.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of invention;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view;
Fig. 3 is the structural representation of the another kind of embodiment of the utility model;
Fig. 4 is that the A-A of Fig. 3 is to cut-open view.
Below in conjunction with the drawings and the specific embodiments the utility model is further described.
Embodiment
Using method of the present utility model is identical with the using method of prior art, seldom gives unnecessary details at this.
Claims (6)
1. built-in ionic pump formula scanister, it comprises electron linear accelerator (1), scanning electro-magnet (3) and scan box (11), the top of scan box (11) is connected with and can and be looped around the scanning electro-magnet (3) of outer wall with the fixing ring flange (2) of accelerator (1), the anode high voltage lead-in wire (9) of ionic pump is introduced in the scan box (11) by insulator (10), the extraction window (13) of the bottom of scan box (11) for constituting with 40～60 μ m titanium foil materials, the titanium foil material be fastened on scan box (11) bottom flange connecting dish (12) on, it is characterized in that: described scan box (11) is the vertical placement of rectangle, two shoulder places, upper end are symmetrical arranged the fixed bin (6) of the little tube of the anode that ionic pump is housed (8) and the cathode titanium plates (17) that is connected with fixed bin (6) in the scan box (11), on the outer wall of scan box (11), with the magnet (18) that is equipped with ionic pump before and after the correspondence position of each fixed bin (6), each magnet (18) is fixing with the yoke (7) that rounds, in scan box (11), be provided with the magnetic field shielding plate (15) that is connected with scan box (11) madial wall between ionic pump and electronic beam current (14) border.
2. according to the described built-in ionic pump formula scanister of claim 1, it is characterized in that: the described fixed bin (6) that the little tube of anode (8) is housed be shaped as right-angled trapezium, by insulator (5) and back up pad (4) fixed bin (6) and scan box (11) madial wall are fixed.
3. according to claim 1 or 2 described built-in ionic pump formula scanister, it is characterized in that: described barricade (15) is provided with pod apertures (16).
4. built-in ionic pump formula scanister, it comprises accelerator (1), scanning electro-magnet (3) and scan box (11), one side of scan box (11) is connected with and can and be looped around the scanning electro-magnet (3) of outer wall with the fixing ring flange (2) of accelerator (1), the anode high voltage lead-in wire (9) of ionic pump is introduced in the scan box (11) by insulator (10), the extraction window (13) of the bottom of scan box (11) for constituting with 40～60 μ m titanium foil materials, the titanium foil material be fastened on scan box (11) bottom flange connecting dish (12) on, top in ring flange (12), the outer wall of scan box (11) is provided with and forms needed bending magnet in stationary magnetic field district (21) and yoke (20), another side of scan box (11) is provided with electronic beam current measuring appliance (19), it is characterized in that: described scan box (11) is the horizontal placement of rectangle, the interior upper end of scan box (11) is provided with the fixed bin (6) of the little tube of the anode that ionic pump is housed (8) and the cathode titanium plates (17) that is connected with fixed bin (6), on the outer wall of scan box (11), with the magnet (18) that is provided with ionic pump before and after the correspondence position of fixed bin (6), each magnet (18) is fixing with the yoke (7) that rounds, in scan box (11), be provided with the magnetic field shielding plate (15) that is connected with scan box (11) madial wall between ionic pump and electronic beam current (14) border.
5. according to the described built-in ionic pump formula scanister of claim 4, it is characterized in that: the described fixed bin (6) that the little tube of anode (8) is housed be shaped as rectangle, by insulator (5) and back up pad (4) fixed bin (6) and scan box (11) madial wall are fixed.
6. according to claim 4 or 5 described built-in ionic pump formula scanister, it is characterized in that: described barricade (15) is provided with pod apertures (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02294955 CN2590132Y (en) | 2002-12-31 | 2002-12-31 | Built-in ion pump type scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02294955 CN2590132Y (en) | 2002-12-31 | 2002-12-31 | Built-in ion pump type scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2590132Y true CN2590132Y (en) | 2003-12-03 |
Family
ID=33752209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02294955 Expired - Lifetime CN2590132Y (en) | 2002-12-31 | 2002-12-31 | Built-in ion pump type scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2590132Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163477A (en) * | 2015-10-16 | 2015-12-16 | 无锡鑫宏业特塑线缆有限公司 | Electronic accelerator scanning box |
-
2002
- 2002-12-31 CN CN 02294955 patent/CN2590132Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163477A (en) * | 2015-10-16 | 2015-12-16 | 无锡鑫宏业特塑线缆有限公司 | Electronic accelerator scanning box |
| CN105163477B (en) * | 2015-10-16 | 2018-08-31 | 无锡鑫宏业特塑线缆有限公司 | A kind of Electron Accelerator Scanning Box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050622 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |