CN103280392B - A kind of electric power system of electron gun power supply - Google Patents
A kind of electric power system of electron gun power supply Download PDFInfo
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- CN103280392B CN103280392B CN201310152844.3A CN201310152844A CN103280392B CN 103280392 B CN103280392 B CN 103280392B CN 201310152844 A CN201310152844 A CN 201310152844A CN 103280392 B CN103280392 B CN 103280392B
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- filament transformer
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Abstract
The invention discloses the electric power system of a kind of electron gun power supply, including 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, it is also associated with at least one potentiometer between primary coil and the high-field electrode of described filament transformer, each potentiometer regulates its resistance by insulating bar, and described insulating bar passes through step motor drive.The present invention solves general distribution in prior art cannot complete the powerup issue to electron gun, regulate filament transformer primary current by two potentiometers of regulation filament transformer primary return to change the high frequency electric of heat filament and reach to regulate the purpose of accelerator electron stream intensity, electronic beam current is easy to adjust, electronic beam current good stability, well solves at high potential to electron gun powerup issue.
Description
Technical field
The present invention relates to a kind of electric power system, a kind of electric power system for electron gun power supply, belong to industrial accelerator art field.
Background technology
Electron gun is the vitals that 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 free electron at normal temperatures can not escape metal surface, only kinetic energy could escape more than the free electron of work function, raises with cathode temperature, and in metal, free electron kinetic energy is more than the electron number of work function the more, emission current is bigger, i.e. electronics is the most.Obtain substantial amounts of electronics for accelerating, it is necessary to a system that electron gun is powered, and requirement can continuously adjust.Owing to electron gun is in high potential, common power supply can not reach.
Summary of the invention
The technical problem to be solved is to provide the electric power system of a kind of electron gun power supply, and electronic beam current is easy to adjust, electronic beam current good stability, well solves at high potential to electron gun powerup issue.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of electric power system of electron gun power supply, including 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, it is also associated with at least one potentiometer between primary coil and the high-field electrode of described filament transformer, each potentiometer regulates its resistance by insulating bar, and described insulating bar passes through step motor drive.
The electric power system of aforesaid a kind of electron gun power supply, it is characterised in that: the primary coil two ends of described filament transformer also bridge the travel switch that can be triggered by described potentiometer.
The electric power system of aforesaid a kind of electron gun power supply, it is characterised in that: the primary coil two ends of described filament transformer are also associated with the first stabilivolt and the second stabilivolt being in series.
The electric power system of aforesaid a kind of electron gun power supply, it is characterised in that: it is also associated with choke coil between primary coil and the high-field electrode of described filament transformer.
The electric power system of aforesaid a kind of electron gun power supply, it is characterised in that: all it is parallel with protection ball gap between primary coil and the travel switch of described filament transformer, between travel switch and first, second stabilivolt, between choke coil and first, second stabilivolt.
The invention has the beneficial effects as follows:
1, by series voltage stabilizing pipe amplitude limit, when stabilivolt is in running order, during the change of accelerator high pressure, it is provided that constant to electron gun power supply 1600V voltage constant, thus ensure strong the adjustment with high pressure of accelerator electron stream and change；
2, regulate filament transformer primary current by two potentiometers of regulation filament transformer primary return to change the high frequency electric of heat filament and reach to regulate the purpose of accelerator electron stream intensity；
3, be all screwed into maximum when two potentiometers, touch the switch being connected across filament transformer primary two ends so that it is Guan Bi simultaneously, then filament transformer primary short ensures that not adding thermocurrent passes through electron gun filament, and now accelerator line is zero；
4, it is mounted with to protect ball gap, prevents the surge voltage caused by high voltage arc, interference to electric power system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electric power system of the present invention a kind of electron gun power supply.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, a kind of electric power system of electron gun power supply, including 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, being also associated with at least one potentiometer 3 between primary coil and the high-field electrode of described filament transformer 2, each potentiometer 3 regulates its resistance by insulating bar 4, and described insulating bar 4 is driven by motor 5.Control device by the PLC of accelerator control system and control the movement of insulating bar 4, thus realize regulation to two potentiometer resistances, it is achieved that regulate filament transformer 2 primary current by two potentiometers 3 of regulation filament transformer 2 primary return and change the high frequency electric of heat filament and reach to regulate the purpose of accelerator electron stream intensity.
The primary coil two ends of filament transformer 2 also bridge the travel switch 6 that can be triggered by described potentiometer 3, when two potentiometers 3 are all screwed into maximum, touch the travel switch 6 being connected across the primary two ends of filament transformer 2, make it close, then filament transformer 2 primary short ensures that not adding thermocurrent passes through electron gun filament 1, and now accelerator line is zero.
The primary coil two ends of filament transformer 2 are also associated with the first stabilivolt 7 and the second stabilivolt 8 being in series, it is also associated with choke coil 10 between primary coil and the high-field electrode of filament transformer 2, when stabilivolt is in running order, during the change of accelerator high pressure, it is supplied to electron gun power supply 1600V voltage constant constant, thus ensures strong the adjustment with high pressure of accelerator electron stream and change.
All it is parallel with protection ball gap 9 between primary coil and the travel switch 6 of filament transformer 2, between travel switch 6 and first, second stabilivolt, between choke coil 10 and first, second stabilivolt, prevents the surge voltage caused by high voltage arc, interference to electric power system.
In sum, the electric power system of a kind of electron gun power supply that the present invention provides, electronic beam current is easy to adjust, electronic beam current good stability, well solves at high potential to electron gun powerup issue.
The ultimate principle of the present invention, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; 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 both fall within scope of the claimed invention.Claimed scope is by appending claims and equivalent circle thereof.
Claims (4)
1. the electric power system of an electron gun power supply, including 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), at least one potentiometer (3) it is also associated with between primary coil and the high-field electrode of described filament transformer (2), each potentiometer (3) regulates its resistance by insulating bar (4), described insulating bar (4) is driven by motor (5), it is characterized in that: the primary coil two ends of described filament transformer (2) also bridge the travel switch (6) that can be triggered by described potentiometer (3).
The electric power system of a kind of electron gun power supply the most according to claim 1, it is characterised in that: the primary coil two ends of described filament transformer (2) are also associated with the first stabilivolt (7) and the second stabilivolt (8) being in series.
The electric power system of a kind of electron gun power supply the most according to claim 2, it is characterised in that: it is also associated with choke coil (10) between primary coil and the high-field electrode of described filament transformer (2).
The electric power system of a kind of electron gun power supply the most according to claim 3, it is characterised in that: all it is parallel with protection ball gap (9) between primary coil and the travel switch (6) of described filament transformer (2), between travel switch (6) and first, second stabilivolt, between choke coil (10) and first, second stabilivolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310152844.3A CN103280392B (en) | 2013-04-28 | 2013-04-28 | A kind of electric power system of electron gun power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310152844.3A CN103280392B (en) | 2013-04-28 | 2013-04-28 | A kind of electric power system of electron gun power supply |
Publications (2)
| Publication Number | Publication Date |
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| CN103280392A CN103280392A (en) | 2013-09-04 |
| CN103280392B true CN103280392B (en) | 2016-12-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988755A (en) * | 2006-12-23 | 2007-06-27 | 张祥华 | Independent power supply device for electronic gun |
| CN101227791A (en) * | 2008-02-04 | 2008-07-23 | 江苏达胜加速器制造有限公司 | Electron accelerator |
| CN102288905A (en) * | 2011-06-27 | 2011-12-21 | 中国西电电气股份有限公司 | Synthetic closing and opening test circuit used for high-voltage AC (alternating current) circuit breaker |
| CN203205373U (en) * | 2013-04-28 | 2013-09-18 | 江苏达胜加速器制造有限公司 | Power supply system for electron gun power source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8487534B2 (en) * | 2010-03-31 | 2013-07-16 | General Electric Company | Pierce gun and method of controlling thereof |
-
2013
- 2013-04-28 CN CN201310152844.3A patent/CN103280392B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988755A (en) * | 2006-12-23 | 2007-06-27 | 张祥华 | Independent power supply device for electronic gun |
| CN101227791A (en) * | 2008-02-04 | 2008-07-23 | 江苏达胜加速器制造有限公司 | Electron accelerator |
| CN102288905A (en) * | 2011-06-27 | 2011-12-21 | 中国西电电气股份有限公司 | Synthetic closing and opening test circuit used for high-voltage AC (alternating current) circuit breaker |
| CN203205373U (en) * | 2013-04-28 | 2013-09-18 | 江苏达胜加速器制造有限公司 | Power supply system for electron gun power source |
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| Publication number | Publication date |
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| CN103280392A (en) | 2013-09-04 |
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Address after: 215214 Jiangsu city of Suzhou province Wujiang FenHu Beishe Community Road No. 1288. Applicant after: CGN DASHENG ELECTRON ACCELERATOR TECHNOLOGY CO., LTD. Address before: 215214 Jiangsu city of Suzhou province Wujiang FenHu Beishe Community Road No. 1288. Applicant before: Jiangsu Dasheng Accelerator Manufacturing Co., Ltd. |
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