CN203205373U - Power supply system for electron gun power source - Google Patents
Power supply system for electron gun power source Download PDFInfo
- Publication number
- CN203205373U CN203205373U CN 201320224402 CN201320224402U CN203205373U CN 203205373 U CN203205373 U CN 203205373U CN 201320224402 CN201320224402 CN 201320224402 CN 201320224402 U CN201320224402 U CN 201320224402U CN 203205373 U CN203205373 U CN 203205373U
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- Prior art keywords
- electron gun
- filament
- power supply
- filament transformer
- primary coil
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Abstract
The utility model discloses a power supply system for an electron gun power source. The system comprises an electron gun filament and a filament transformer. A primary coil and a secondary coil of the filament transformer are connected to a high-voltage electrode and the electron gun filament respectively. And at least one potentiometer is connected between the primary coil and the high-voltage electrode. The resistance of each potentiometer is regulated by means of an insulating rod driven by a stepper motor. The system solves the problem that common power supply systems in the prior art cannot supply an electron gun with power. The system regulates the resistance of two potentiometers in a primary loop of the filament transformer to regulate the primary current of the filament transformer to change the high frequency current of the heating filament, so that the electron flow intensity of an accelerator is regulated. The electron beam flow is convenient for regulation and good in stability. Thus the problem of supplying power to the electron gun under high potential is resolved.
Description
Technical field
The utility model has related to a kind of electric power system, and especially a kind of electric power system for the electron gun power supply belongs to industrial accelerator art field.
Background technology
Electron gun is the vitals that the industrial electronic irradiation accelerator produces electronics, and electron gun is positioned at accelerator terminal voltage highest point, and ceiling voltage reaches million electron volt (MeV).Gun cathode is the free electron metal surface of can not overflowing at normal temperatures, only have kinetic energy could overflow greater than the free electron of work function, raise with cathode temperature, free electron kinetic energy greater than the electron number of work function the more in the metal, emission current is larger, and namely electronics is more.Obtain a large amount of electronics for accelerating, just need one to the system of electron gun power supply, and requirement can be regulated continuously.Because electron gun is in high potential, common power supply can not reach.
The utility model content
Technical problem to be solved in the utility model provides a kind of electric power system of electron gun power supply, and electronic beam current is easy to adjust, and the electronic beam current good stability has well solved at the high potential place to the electron gun powerup issue.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of electric power system of electron gun power supply, comprise electron gun filament and filament transformer, the primary coil of described filament transformer connects high-field electrode, secondary coil is connected with described electron gun filament, also be connected with at least one potentiometer between the primary coil of described filament transformer and the high-field electrode, each potentiometer is regulated its resistance by insulating bar, and described insulating bar drives by stepping motor.
The electric power system of aforesaid a kind of electron gun power supply is characterized in that: there is the travel switch that can be triggered by described potentiometer at the primary coil two ends of described filament transformer also cross-over connection.
The electric power system of aforesaid a kind of electron gun power supply is characterized in that: the primary coil two ends of described filament transformer also are connected with the first voltage-stabiliser tube and the second voltage-stabiliser tube that is in series.
The electric power system of aforesaid a kind of electron gun power supply is characterized in that: also be connected with choke between the primary coil of described filament transformer and the high-field electrode.
The electric power system of aforesaid a kind of electron gun power supply is characterized in that: between the primary coil and travel switch of described filament transformer, between travel switch and first, second voltage-stabiliser tube, all be parallel with protection ball gap between choke and first, second voltage-stabiliser tube.
The beneficial effects of the utility model are:
1, by series voltage stabilizing pipe amplitude limit, in running order when voltage-stabiliser tube, when the accelerator high pressure changes, offer electron gun power supply 1600V voltage constant constant, thereby guarantee that the accelerator electron stream does not change with the high pressure adjustment by force;
2, regulate the high-frequency current that the filament transformer primary current changes heat filament by two potentiometers regulating the filament transformer primary return and reach the purpose of regulating accelerator electron stream intensity;
3, all be screwed into maximum when two potentiometers, touch simultaneously the switch that is connected across the elementary two ends of filament transformer, make its closure, then the filament transformer primary short guarantees not have heating current to pass through electron gun filament, and this moment, the accelerator line was zero;
4, protection ball gap has been installed, has prevented the caused surge voltage of high voltage arc, to the interference of electric power system.
Description of drawings
Fig. 1 is the structural representation of the electric power system of a kind of electron gun power supply of the utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1, a kind of electric power system of electron gun power supply, comprise electron gun filament 1 and filament transformer 2, the primary coil of described filament transformer 2 connects high-field electrode, secondary coil is connected with described electron gun filament 1, also be connected with at least one potentiometer 3 between the primary coil of described filament transformer 2 and the high-field electrode, each potentiometer 3 is regulated its resistance by insulating bar 4, and described insulating bar 4 drives by stepping motor 5.Control the movement of insulating bar 4 by the PLC control device of accelerator control system, thereby realize the adjusting to two potentiometer resistances, realized that regulating the high-frequency current that filament transformer 2 primary currents change heat filament by two potentiometers 3 regulating filament transformer 2 primary returns reaches the purpose of regulating accelerator electron stream intensity.
There is the travel switch 6 that can be triggered by described potentiometer 3 at the primary coil two ends of filament transformer 2 also cross-over connection, when two potentiometers 3 all are screwed into maximum, shake-up is connected across the travel switch 6 at filament transformer 2 elementary two ends, make its closure, then filament transformer 2 primary short guarantee not have heating current to pass through electron gun filament 1, and this moment, the accelerator line was zero.
The primary coil two ends of filament transformer 2 also are connected with the first voltage-stabiliser tube 7 and the second voltage-stabiliser tube 8 that is in series, also be connected with choke 10 between the primary coil of filament transformer 2 and the high-field electrode, when voltage-stabiliser tube in running order, when the accelerator high pressure changes, offer electron gun power supply 1600V voltage constant constant, thereby guarantee that the accelerator electron stream does not change with the high pressure adjustment by force.
Between the primary coil of filament transformer 2 and the travel switch 6, between travel switch 6 and first, second voltage-stabiliser tube, all be parallel with protection ball gap 9 between choke 10 and first, second voltage-stabiliser tube, prevent the caused surge voltage of high voltage arc, to the interference of electric power system.
In sum, the electric power system of a kind of electron gun power supply that the utility model provides, electronic beam current is easy to adjust, and the electronic beam current good stability has well solved at the high potential place to the electron gun powerup issue.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (5)
1. the electric power system of an electron gun power supply, comprise electron gun filament (1) and filament transformer (2), the primary coil of described filament transformer (2) connects high-field electrode, secondary coil is connected with described electron gun filament (1), it is characterized in that: also be connected with at least one potentiometer (3) between the primary coil of described filament transformer (2) and the high-field electrode, each potentiometer (3) is regulated its resistance by insulating bar (4), and described insulating bar (4) drives by stepping motor (5).
2. the electric power system of a kind of electron gun power supply according to claim 1 is characterized in that: there is the travel switch (6) that can be triggered by described potentiometer (3) at the primary coil two ends of described filament transformer (2) also cross-over connection.
3. the electric power system of a kind of electron gun power supply according to claim 1 and 2, it is characterized in that: the primary coil two ends of described filament transformer (2) also are connected with the first voltage-stabiliser tube (7) and the second voltage-stabiliser tube (8) that is in series.
4. the electric power system of a kind of electron gun power supply according to claim 3 is characterized in that: also be connected with choke (10) between the primary coil of described filament transformer (2) and the high-field electrode.
5. the electric power system of a kind of electron gun power supply according to claim 4 is characterized in that: between the primary coil of described filament transformer (2) and the travel switch (6), between travel switch (6) and first, second voltage-stabiliser tube, all be parallel with protection ball gap (9) between choke (10) and first, second voltage-stabiliser tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224402 CN203205373U (en) | 2013-04-28 | 2013-04-28 | Power supply system for electron gun power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320224402 CN203205373U (en) | 2013-04-28 | 2013-04-28 | Power supply system for electron gun power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203205373U true CN203205373U (en) | 2013-09-18 |
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ID=49149454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320224402 Expired - Lifetime CN203205373U (en) | 2013-04-28 | 2013-04-28 | Power supply system for electron gun power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203205373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280392A (en) * | 2013-04-28 | 2013-09-04 | 江苏达胜加速器制造有限公司 | Power supply system of electronic-gun power supply |
-
2013
- 2013-04-28 CN CN 201320224402 patent/CN203205373U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280392A (en) * | 2013-04-28 | 2013-09-04 | 江苏达胜加速器制造有限公司 | Power supply system of electronic-gun power supply |
| CN103280392B (en) * | 2013-04-28 | 2016-12-28 | 中广核达胜加速器技术有限公司 | A kind of electric power system of electron gun power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215214 Jiangsu city of Suzhou province Wujiang FenHu Beishe Community Road No. 1288. Patentee after: CGN DASHENG ELECTRON ACCELERATOR TECHNOLOGY CO., LTD. Address before: 215214 Jiangsu city of Suzhou province Wujiang FenHu Beishe Community Road No. 1288. Patentee before: Jiangsu Dasheng Accelerator Manufacturing Co., Ltd. |