CN205283922U - High pressure dipulse induction acceleration component structure - Google Patents
High pressure dipulse induction acceleration component structure Download PDFInfo
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- CN205283922U CN205283922U CN201620043343.0U CN201620043343U CN205283922U CN 205283922 U CN205283922 U CN 205283922U CN 201620043343 U CN201620043343 U CN 201620043343U CN 205283922 U CN205283922 U CN 205283922U
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Abstract
The utility model discloses a high pressure dipulse induction acceleration component structure, blumlein line A links to each other respectively with accelerating cavity A, accelerating cavity B through a high tension cable of 4 the same length, and blumlein line B is connected with aqueous medium high pressure delay line through 2 the 2nd parallelly connected high tension cable, and the 3rd high tension cable of 4 the same length of output rethread of aqueous medium high pressure delay line links to each other respectively with accelerating cavity A, accelerating cavity B. The utility model discloses a dipulse structure for many pulse forming line of prior art and supporting prime power sources with trigger power structure, the structure is simplified greatly, furthermore, the in -process that charges at blumlein line A and blumlein line B, the leakage current pulse of charging that a time counted mu s can produce, this current pulse is opposite with main pulse current polarity, to reset to accelerating cavity A and accelerating cavity B's magnetic core when the accelerating cavity, the problem of the difficulty that resets is solved.
Description
Technical field
The utility model relates to multipulse accelerating field generation technology, is specifically related to a kind of high pressure two pulse induction acceleration group meta structure.
Background technology
The induction acceleration group unit being made up of induction chamber and corresponding pulses power system is the basic composition unit of linear induction accelerator, magnetic core in the high pressure-burst pulse excitation Accelerating cavity that pulse power system produces, on accelerating gap, induction produces pulsed electrical field and realizes the acceleration to strong current electron beam. The high voltage pulse that chamber is accelerated in feed-in need to reach more than 200kV usually, due to the restriction of switch ability, pulse-forming line can only be utilized at present to produce, formed after line discharges and need longer switch insulation time of recovery and duration of charging, therefore can only be operated in extremely low repetition rate or run for single time. In traditional monopulse linear induction accelerator, pulse power system based on Blumlein pulse-forming line can provide reset pulse for accelerating chamber when Blumlein line charges, excitation pulse is then provided, we term it accelerate " automatically the resetting " in chamber when Blumlein line discharges.
Linear induction accelerator is mainly used in spark photograph, and strong current electron beam target practice that it accelerates produces strong X-ray pulse and the detonation sample of change at a high speed is carried out in-duction linac. Time needed for detonation process very short (being generally �� s magnitude), therefore being carried out several spark photographs, acceleration group unit needs the multiple acceleration pulses producing more than MHz repetition rate.
The high pressure multipulse group unit that can meet high-repetition-rate only has two kinds of known structure at present, a kind of is based on the multipulse producing method (reference " 250kV; 1MHz repetition rate square wave two pulse source " of many cover power systems and silicon heap isolation network, Li Xin, Chen Sifu etc., light laser and particle beam, 2005,17(5)), another kind be the two pulse producing method based on Cable delay (reference " high pressure two pulse induction acceleration group meta design ", 2013 yellow sons are flat, Chen Sifu etc., high-energy-density physics, 2013,3).
The first multipulse producing method, its advantage is: multiple pulse is flowed to after independently producing by many Blumlein pulse-forming lines accelerates chamber, the amplitude of its recurrent interval, number of pulses and each pulse is all independent adjustable, it is possible to meet the demand of several spark photographs preferably; Weak point is: its group unit comprises many pulse-forming lines and supporting prime power source thereof and triggers power supply, and complex structure, to the requirement height of system stability; The use paired pulses waveform quality of high voltage silicon rectifier stack has certain influence, and there is the risk of device failure; Blumlein forms the reset pulse produced when line charges and is blocked by silicon heap, and accelerating chamber magnetic core can not " reset " automatically, need to connect independent reset power supply and Controlling System realizes the reset to magnetic core.
2nd kind of two pulse producing method, its advantage is: form, by a Blumlein, the generation that line realizes two pulse, and acceleration group meta structure is simple, reliability height; Accelerate chamber magnetic core and can utilize the prepulsing realization " automatically resetting " being formed and producing when line charges; The index such as recurrent interval, amplitude can reach several spark photographs to the basic demand of acceleration group unit; Weak point is: the recurrent interval is non-adjustable; Number of pulses can not change; Pulse height can not independently regulate, through time delay produce the 2nd pulse height usually a little less than first pulse; Two pulse waveform quality and pulse height and reset resistor resistance are closely related, cause the less stable of waveform quality.
Practical novel content
The utility model object is to provide a kind of high pressure two pulse induction acceleration group meta structure, and many pulse-forming lines and the supporting prime power source thereof and the amplitude between power supply architecture complexity, pulse that triggers that solve current two pulse producing method existence are difficult to regulate, accelerate chamber magnetic core reset difficulty three difficult problems.
The utility model is achieved through the following technical solutions:
A kind of high pressure two pulse induction acceleration group meta structure, comprise and accelerate chamber A, acceleration chamber B, Blumlein line A, Blumlein line B, described Blumlein line A and Blumlein line B shares same set of charging and triggering system, when triggering signal arrives, Blumlein line A and Blumlein line B exports short pulse simultaneously, wherein Blumlein line A is connected with acceleration chamber A, acceleration chamber B respectively by the first high-tension cable of 4 equal length, Blumlein line B is connected with water medium high pressure delay line by 2 the 2nd high-tension cables in parallel, and the output terminal of water medium high pressure delay line is connected with acceleration chamber A, acceleration chamber B respectively by the third high voltage cable of 4 equal length again. high pressure two pulse of the present utility model induction acceleration group meta structure breaches the constraint of tradition thinking, the high pressure-burst pulse that Blumlein line B produces arrives after time delay electrical length and accelerates chamber A and accelerate chamber B, on triggering, accelerate chamber A and accelerate chamber B from the first high-tension cable feed-in first high-voltage pulse simultaneously, now third high voltage cable is as the matched load of this pulse, and pulse enters third high voltage cable after accelerating chamber and propagates to delay line direction, after triggering, the high-voltage pulse that Blumlein line A and Blumlein line B produces respectively meets in water medium high pressure delay line, after superposition, the former direction of each self-sustaining is propagated, 600ns after triggering, the high-voltage pulse that Blumlein line B produces accelerates chamber A by third high voltage cable feed-in and accelerates chamber B, since then, accelerating chamber A and accelerating the accelerating gap of chamber B will produce the high pressure two pulse of two interval 540ns respectively, such two pulse structure is for many pulse-forming lines of prior art and supporting prime power source and triggering power supply architecture thereof, structure simplifies greatly, and, in the process that Blumlein line A and Blumlein line B charges, the charging leakage current pulse of time number �� s can be produced, this impulse of current is contrary with master clock current polarity, reset to the magnetic core accelerating chamber A and acceleration chamber B through accelerating chamber, solve the problem of the difficulty that resets.
The impedance of described Blumlein line A, Blumlein line B is 12 ��, the electrical length of water medium high pressure delay line is 500ns, and the impedance of the 2nd high-tension cable is 24 ��, and its electrical length is 40ns, the impedance of the first high-tension cable and third high voltage cable is 48 ��, and its electrical length is 60ns. The selection of above parameter is that applicant needs to obtain through theoretical analysis and experiment, also is most appropriate to respond to acceleration group unit simultaneously and produces good two pulse waveform. This kind of combination is utilized to test the high pressure two pulse obtaining and meeting two pulse linear induction accelerator needs. By changing the length of delay line and high-tension cable, it is possible to being adjusted in the timed interval of two pulse, the minimum time interval of two pulse can reach 300ns.
Described Blumlein line B is also connected with a reset water resistance. Reset resistor is arranged on the outlet of Blumlein line B, it is achieved the intensity of reset current pulse controlled, by arranging suitable resistance, it is possible to guarantee that each high pressure-burst pulse arrives its magnetic core when accelerating chamber and just resets to best position.
The utility model compared with prior art, has following advantage and useful effect:
1, a kind of high pressure two pulse induction acceleration group meta structure of the utility model, the high pressure-burst pulse that Blumlein line B produces arrives after time delay electrical length and accelerates chamber A and accelerate chamber B, on triggering, accelerate chamber A and accelerate chamber B from the first high-tension cable feed-in first high-voltage pulse simultaneously, now third high voltage cable is as the matched load of this pulse, and pulse enters third high voltage cable after accelerating chamber and propagates to delay line direction, after triggering, the high-voltage pulse that Blumlein line A and Blumlein line B produces respectively meets in water medium high pressure delay line, after superposition, the former direction of each self-sustaining is propagated, 600ns after triggering, the high-voltage pulse that Blumlein line B produces accelerates chamber A by third high voltage cable feed-in and accelerates chamber B, since then, accelerating chamber A and accelerating the accelerating gap of chamber B will produce the high pressure two pulse of two interval 540ns respectively, such two pulse structure is for many pulse-forming lines of prior art and supporting prime power source and triggering power supply architecture thereof, structure simplifies greatly, and, in the process that Blumlein line A and Blumlein line B charges, the charging leakage current pulse of time number �� s can be produced, this impulse of current is contrary with master clock current polarity, reset to the magnetic core accelerating chamber A and acceleration chamber B through accelerating chamber, solve the problem of the difficulty that resets,
2, a kind of high pressure two pulse induction acceleration group meta structure of the utility model, by accelerating to produce single pulse waveforms or two pulse waveform on chamber with the selection whether formation line B charges to forming line A; By to forming line A and form the independent control of line B charging voltage, the amplitude accelerating two pulse waveform on chamber being carried out independent adjustment; When magnetic core resets, the control of reset pulse height is played a major role by time delay transmission line, and magnetic core reset effect is relatively fixing, the sensitivity of reset resistor resistance and pulse height declined to a great extent, it is to increase the stability of two pulse waveform quality.
Accompanying drawing explanation
Accompanying drawing described herein be used to provide to the utility model embodiment it is further understood that form the application a part, do not form the restriction to the utility model embodiment. In the accompanying drawings:
Fig. 1 is the structural representation of the utility model group unit;
Fig. 2 is that the utility model embodiment tests the acceleration chamber high pressure two pulse waveform obtained.
The component title of mark and correspondence in accompanying drawing:
1-Blumlein line A, 2-Blumlein line B, 3-accelerate chamber A, 4-and accelerate chamber B, 5-water medium high pressure delay line, 6-reset water resistance, 7-the 2nd high-tension cable, 8-first high-tension cable, 9-third high voltage cable.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment
As shown in Figure 1, a kind of high pressure two pulse induction acceleration group meta structure of the utility model, comprises two Blumlein and forms line, two acceleration chambeies, a delay transport line and Duo Gen high-tension cable, wherein Blumlein line A1 and Blumlein line B2 shares same set of charging and triggering system, when triggering signal arrives, two Blumlein lines export high pressure-burst pulse simultaneously, Blumlein line A is connected with acceleration chamber B4 with acceleration chamber A3 respectively by the first high-tension cable 8 of 4 equal length, the electrical length of the first high-tension cable 8 is 60ns, namely the high pressure-burst pulse that Blumlein line A produces arrives after 60ns and accelerates chamber A3 and accelerate chamber B4, Blumlein line B2 is connected with water medium high pressure delay line 5 by 2 24 �� the 2nd high-tension cables 7 in parallel, the output terminal of water medium high pressure delay line 5 is connected with acceleration chamber B4 with acceleration chamber A3 respectively by 4 48 �� third high voltage cable 9 again, wherein the electrical length of the 2nd high-tension cable 7 is 40ns, the electrical length of water medium high pressure delay line 5 is 500ns, the electrical length of third high voltage cable 9 is 60ns, namely the high pressure-burst pulse that Blumlein line B2 produces arrives after 600ns and accelerates chamber A3 and accelerate chamber B4, 60ns on triggering, accelerate chamber A3 and accelerate chamber B4 from the first high-tension cable 8 feed-in first high-voltage pulse simultaneously, now third high voltage cable 9 is as the matched load of this pulse, pulse enters third high voltage cable 9 after accelerating chamber and propagates to delay line direction, the high-voltage pulse that after triggering, 330ns, Blumlein line A and Blumlein line B produces respectively meets in water medium high pressure delay line 5, and after superposition, the former direction of each self-sustaining is propagated. 600ns after triggering, the high-voltage pulse that Blumlein line B produces accelerates chamber A3 by cable 9 feed-in and accelerates chamber B4, since then, accelerating chamber A3 and accelerating the accelerating gap of chamber B4 will produce two as shown in Figure 2 high-voltage pulse respectively, recurrent interval 540ns, pulse voltage amplitude 180kV, flatness of wave width > 60ns, it is possible to meet two pulse linear induction accelerator to the actual demand accelerating pulse. in the process that Blumlein line A1 and Blumlein line B2 charges, the charging leakage current pulse of time number �� s can be produced, this impulse of current is contrary with master clock current polarity, reset to the magnetic core accelerating chamber A and B through accelerating chamber, reset water resistance 6 is arranged on the outlet of Blumlein line B, realize the intensity to reset current pulse to control, by arranging suitable resistance, can guarantee that each high pressure-burst pulse arrives its magnetic core when accelerating chamber and just resets to best position, by changing water medium high pressure delay line 5, 2nd high-tension cable 7, first high-tension cable 8, the length of third high voltage cable 9, the timed interval of two pulse can be changed, the minimum time interval of two pulse can arrive 300ns.
Above-described embodiment; the purpose of this utility model, technical scheme and useful effect have been further described; it is it should be understood that; the foregoing is only embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a high pressure two pulse induction acceleration group meta structure, comprise accelerate chamber A(3), accelerate chamber B(4), Blumlein line A(1), Blumlein line B(2), it is characterized in that: described Blumlein line A(1) and Blumlein line B(2) share same set of charging and triggering system, when triggering signal arrives, Blumlein line A(1) and Blumlein line B(2) export short pulse simultaneously; Wherein Blumlein line A(1) by first high-tension cable (8) of 4 equal length and accelerate chamber A(3), accelerate chamber B(4) be connected respectively, Blumlein line B(2) be connected with water medium high pressure delay line (5) by 2 the 2nd high-tension cables (7) in parallel, the output terminal of water medium high pressure delay line (5) again by the third high voltage cable (9) of 4 equal length with accelerate chamber A(3), acceleration chamber B(4) be connected respectively.
2. a kind of high pressure two pulse induction acceleration group meta structure according to claim 1, it is characterized in that: described Blumlein line A(1), Blumlein line B(2) impedance be 12 ��, the electrical length of water medium high pressure delay line (5) is 500ns, the impedance of the 2nd high-tension cable (7) is 24 ��, its electrical length is 40ns, first high-tension cable (8) is 48 �� with the impedance of third high voltage cable (9), and its electrical length is 60ns.
3. a kind of high pressure two pulse induction acceleration group meta structure according to claim 2, it is characterised in that: at described Blumlein line B(2) on be also connected with a reset water resistance (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043343.0U CN205283922U (en) | 2016-01-18 | 2016-01-18 | High pressure dipulse induction acceleration component structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043343.0U CN205283922U (en) | 2016-01-18 | 2016-01-18 | High pressure dipulse induction acceleration component structure |
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| CN205283922U true CN205283922U (en) | 2016-06-01 |
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| CN201620043343.0U Withdrawn - After Issue CN205283922U (en) | 2016-01-18 | 2016-01-18 | High pressure dipulse induction acceleration component structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105517315A (en) * | 2016-01-18 | 2016-04-20 | 中国工程物理研究院流体物理研究所 | High-voltage and double-pulse induction acceleration assembly structure |
-
2016
- 2016-01-18 CN CN201620043343.0U patent/CN205283922U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105517315A (en) * | 2016-01-18 | 2016-04-20 | 中国工程物理研究院流体物理研究所 | High-voltage and double-pulse induction acceleration assembly structure |
| CN105517315B (en) * | 2016-01-18 | 2017-10-03 | 中国工程物理研究院流体物理研究所 | A kind of high pressure dipulse sensing accelerates Component Structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20171003 |