CN105979694A - Pre-cut beam splitter used for beam pulse control - Google Patents
Pre-cut beam splitter used for beam pulse control Download PDFInfo
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- CN105979694A CN105979694A CN201610268957.3A CN201610268957A CN105979694A CN 105979694 A CN105979694 A CN 105979694A CN 201610268957 A CN201610268957 A CN 201610268957A CN 105979694 A CN105979694 A CN 105979694A
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- 229910052802 copper Inorganic materials 0.000 claims description 3
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- 238000005520 cutting process Methods 0.000 abstract description 7
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- BCQMBFHBDZVHKU-UHFFFAOYSA-N terbumeton Chemical compound CCNC1=NC(NC(C)(C)C)=NC(OC)=N1 BCQMBFHBDZVHKU-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
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- 239000011162 core material Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/22—Details of linear accelerators, e.g. drift tubes
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Abstract
The invention discloses a pre-cut beam splitter used for beam pulse control. The pre-cut beam splitter comprises an electrostatic deflection plate installed at a magnetic-focusing and matched-structure low-power transmission line tail end, a power supply providing a voltage for the electrostatic deflection plate and an attached device which matches with and is used with the electrostatic deflection plate. The attached device is installed on the low-power transmission line tail end and is located in front of the electrostatic deflection plate. The electrostatic deflection plate is formed by two flat electrode plates. The two electrode plates are symmetrically installed in a mirror image mode. A width and an installation distance of the two electrode plates present positive correlation linearity changes along with a diameter of a beam envelop. By using the pre-cut beam splitter, the electrode plates which change along with the beam envelop are taken as the electrostatic deflection plate; an electrostatic cutting beam is firstly used in the Chinese spallation neutron-source magnetic-focusing and matching-structure low-power transmission line; cutting beam rise/falling edge time is less than 15ns; and a new device and a new method are provided for a pre-cut beam of a spallation neutron source.
Description
Technical field
The application relates to line control field, particularly relates to a kind of pre-cut bundle device controlled for beam burst.
Background technology
In CSNS (abbreviation CSNS), particle acceleration instrument is that one makes charged particle increase
The equipment of energy, including linear accelerator and ringotron.Proton beam is accelerated to by linear accelerator
80Mev, proton beam is accelerated to 1.6Gev by ringotron, then by line extraction system by proton
Line is drawn, the line bombardment heavy metal tungsten target of extraction, it is thus achieved that neutron, neutron is as the various material of probe in detecting
The microstructure of material.
Wherein, linear accelerator includes that again two sections of transmission lines, transfers line (abbreviation LEBT) and middle energy pass
Defeated line (abbreviation MEBT).LEBT is positioned between ion source and quadrapole accelerator (abbreviation RFQ), MEBT
It is positioned between RFQ and drift tube accelerator (abbreviation DTL).Pre-cut bundle device is mounted in LEBT end,
Being positioned at a bundle flow-control element before RFQ, its function is to cut out meeting and uses the pulsed beam current required,
Beam loss during to avoid and to reduce injection.
The pre-cut bundle device of U.S.'s spallation neutron target (abbreviation SNS) is that a simple lens being divided into four valve structures is quiet
TURP bundle device, principle is to each valve structure on-load voltage according to certain sequential, by beam bending to different four
Individual target spot, reduces the power density of target spot.The LEBT of SNS uses electrostatic focusing, coupling structure,
Length only has 12cm, does not has space charge neutralization.Experiment shows that it cuts bundle line rising edge and trailing edge all exists
Within 50ns.Although all should beat in the beam flow theory of excision on bundle target, but owing to practically necessary is cut
Beam voltage is bigger than design load, and extra high high-voltage pulse power source implements highly difficult, to such an extent as to pre-cut bundle
Device can not effectively realize it and cut beam function so that part is unsatisfactory for the line of use demand also into RFQ,
And be lost in RFQ chamber, RFQ is adversely affected.
The magnetic focusing that LEBT is double solenoid of Japan's spallation neutron target (abbreviation J-PARC), coupling structure,
Length is about 50cm.Its pre-cut bundle device is magnetic alloy vicarious cavity structure, is substantially a transformator,
When primary adds high pressure square wave, modulation voltage is 8.5kV, just the voltage square wave such as induces at pottery accelerating gap,
Line obtains acceleration or deceleration through pottery gap, and energy uprises or step-down so that it is unsatisfactory for RFQ's
Energy acceptance, beam loss is at RFQ intracavity, it is achieved beam burst.The pre-cut bundle device of Japan, it becomes
Depressor core material uses permalloy material (FINEMET), and chamber consumption is big, and the manufacture difficulty of pre-cut bundle device own is big,
And price is much more expensive；Meanwhile, it needs the modulation voltage halved tie stream using 8.5kV to carry out energy modulation,
Power supply is difficulty with.What is more important, experiment shows, its rise/fall edge there are about 100ns plus tail,
Experimental result is unsatisfactory.Therefore, the pre-cut bundle device of Japan has been abandoned.
Summary of the invention
The purpose of the application is to provide the pre-cut bundle device that a kind of new beam burst controls, and, this pre-cut bundle device
Practice is in CSNS, and obtains good result.
The application have employed techniques below scheme:
This application discloses a kind of for beam burst control pre-cut bundle device, including be arranged on magnetic focusing,
The electrostatic deflection plates of the transfers line end of distribution structure, provides the power supply of voltage for electrostatic deflection plates, and
Attached device matching used with electrostatic deflection plates；Attached device is installed on the end of transfers line, and position
Before electrostatic deflection plates；Electrostatic deflection plates is made up of two pieces of smooth battery lead plates, two electrode plate mirror images pair
Claim to install, and the line that the width of two electrode plate and mounting distance are all proportionate with the diameter of line envelope
Property change.
It should be noted that spallation neutron target is a large-scale basic scientific research equipment, pre-cut bundle device is to control
One important devices of particle beam；But, the pre-cut bundle device structure of the existing U.S. and Japan all cannot be very
The good use meeting CSNS, accordingly, it would be desirable to redesign the pre-cut bundle of a new structure
Device.The pre-cut bundle device of the application, in order to obtain more uniform between field intensity and the least plate and plate over the ground between
Electric capacity, design the width of two electrode plate and line that mounting distance is all proportionate with the diameter of line envelope
Property change.
Wherein, the linear change being proportionate with the diameter of line envelope refers to, the width of two electrode plate with
Line envelope diameter to become big and become big, reduce and reduce, and be to become big in n times or reduce, n is positive number,
In a concrete pre-cut bundle device, according to concrete use demand, n is greater than the positive number of 1, and one
In individual concrete pre-cut bundle device, n value determines that, such as, in a kind of application mode of the application, be installed on scattered
The pre-cut bundle device n splitting neutron source is the arbitrary value between 1.2-1.8, the width of preferably 1.5, i.e. two electrode plate
Degree is 1.2-1.8 times of line envelope diameter, preferably 1.5 times.Same, the locating distance of two electrode plate
From, or the distance between two electrode plate is that n ' times be proportionate with the diameter of line envelope becomes big or contracting
Little, the pre-cut bundle device n ' being installed on spallation neutron target is the arbitrary value between 1.0-1.4, preferably 1.2, i.e.
Distance between two electrode plate is 1.0-1.4 times of line envelope diameter, preferably 1.2 times.
Also, it should be noted in the application of spallation neutron target, owing to line envelope diameter is to taper into
, therefore, the width of two electrode plate also tapers into so that the two trapezoidal structures of electrode plate；
Meanwhile, the distance between two electrode plate is also diminishing so that the two short bases of electrode plate are drawn close,
Two electrode plate tilt in " eight " word structure.Wherein, short base a1 refers to shorter in trapezoidal battery lead plate one
Base, side refer to two trapezoidal waists, long base a2 refer to trapezoidal in a longer base.
Additionally, in the application, the purpose arranging the attached device supporting with electrostatic deflection plates is to assist electrostatic inclined
Flap preferably completes to control pulsed beam current, and its Main Function includes, 1. by electrostatic field localization, right to avoid
The destruction of the transfers space of lines charge neutralization of pre-cut bundle device upstream.2. wipe radius line bigger than normal grain off
Son, protection suppression electrode and pre-cut bundle device exempt from the bombardment of particle beam and cause high voltage arc.As long as can
The attached device playing these effects may be used to the application, is not specifically limited at this.But, this Shen
In preferred version please, attached device is described in detail, has referred to follow-up technical scheme.
Preferably, the width of two electrode plate is 1.2-1.8 times of line envelope diameter, two electrode plate away from
From for 1.0-1.4 times of line envelope diameter.
Preferably, the width of two electrode plate is 1.5 times of line envelope diameter, and the distance of two electrode plate is
1.2 times of line envelope diameter, and the line envelope that line envelope is beam intensity 40mA.
It should be noted that the battery lead plate of 1.5 times of line envelope diameters, the distance of two electrode plate is line bag
1.2 times of network diameter, and the line envelope of beam intensity 40mA, these are all a kind of concrete of the application
Preferred version employed in implementation, concrete, it is simply that the pre-cut bundle device being installed on spallation neutron target
The preferred parameter used.It is appreciated that the pre-cut bundle device of the application can be not only used for spallation neutron target,
Can be used for other needs halved tie to flow on the equipment that horizontal pulse controls, therefore, as long as meeting two cube electrodes
Width and the distance of plate change all in the protection domain of the application with the diameter of line envelope；And it is concrete
Battery lead plate width and distance, can adjust according to use demand and applied environment, be not specifically limited at this.
Preferably, the maximum output voltage of power supply is less than 6kV, and voltage output rise/fall is along less than 10 nanoseconds.
Preferably, the running voltage of the power supply of the application is 3.7kV.
It should be noted that the pre-cut bundle device of the application, relatively low voltage can be used to realize particle beam
Prepulsingization is cut, and reduces power supply manufacture difficulty.
Preferably, the edge curvature radius of battery lead plate is 2.5mm.
It should be noted that the restriction of battery lead plate edge curvature radius is in order to avoid high voltage arc, this edge
Radius of curvature is to be determined by the thickness of deflecting plates.
Preferably, an overvoltage protection resistance 52 in parallel in electrostatic deflection plates.
Preferably, the resistance of overprotection resistance is 20k Ω.
It should be noted that the effect of overvoltage protection resistance is, it is ensured that beat the line on battery lead plate at power supply
During inter-train pause, the current potential to battery lead plate improves and can be left in the basket, and then guarantees that particle beam will not produce by mistake
Deflection.It is appreciated that in a kind of implementation of the application, is i.e. installed to the pre-cut bundle device of spallation neutron target
In, overprotection resistance is preferably 20k Ω, but, the pre-cut bundle device of the application not only limits the use of in spallation neutron
Source, therefore, in miscellaneous equipment, can use lower or more high-resistance overprotection resistance, as long as can
Play and ignore the potential change of battery lead plate during power pulse gap.It is being installed to the pre-of spallation neutron target
Cutting in bundle device, overvoltage protection resistance is that directly design is inside the power supply providing voltage for electrostatic deflection plates.
Preferably, attached device includes collimator 2, suppression electrode 3 and the ground electrode 4 sequentially arranged, collimation
Device 2, suppression electrode 3 and ground electrode 4 are sequentially installed on the end of transfers line, and are positioned at electrostatic deflection plates
Before 1, suppression electrode 3 and ground electrode 4 connect by insulating part is fixing, ground electrode 4 and electrostatic deflection plates 1
Connect also by insulating part is fixing.
It should be noted that the effect of collimator and suppression electrode is by electrostatic field localization, to avoid in advance
Cut the destruction of the LEBT space charge neutralization effect of bundle device upstream.The effect of ground electrode 4 is shielding suppression electricity
The field that pole the produces impact on cutting bundle device.
Preferably, collimator 2 is identical with line envelope with the aperture of ground electrode 4.
It should be noted that collimator 2 is identical with line envelope with the aperture of ground electrode 4, it is intended that
Protection suppression electrode and pre-cut bundle device exempt from the bombardment of particle beam and cause high voltage arc.
Preferably, the long base of every electrode plate arranges the installing hole 11, Qi Zhongyi protruding by two, left and right
The gap 12 for installing copper cash is offered on one installing hole of electrode plate.
The application has the beneficial effects that:
The pre-cut bundle device of the application, the battery lead plate that design changes with line envelope, as electrostatic deflection plates,
First CSNS magnetic focusing, coupling structure LEBT on use electrostatic to cut bundle, and obtained cutting bundle line
Rise/fall is less than 15ns along the time；Pre-cut bundle for spallation neutron target provides a kind of new equipment and method.
Accompanying drawing explanation
Fig. 1 is the package assembly schematic diagram of two electrode plate in the embodiment of the present application；
Fig. 2 is the structural representation of one of battery lead plate in the embodiment of the present application, wherein A be front view,
B be lateral plan, C be line inlet end view, D be three-dimensional view；
Fig. 3 is the mounting structure schematic diagram of pre-cut bundle device in the embodiment of the present application；
Fig. 4 is the explosive view installing pre-cut bundle device in the embodiment of the present application, 1 is electrostatic deflection plates, 2 is in figure
Collimator, 3 be suppression electrode, 4 be ground electrode, 5 be the first insulating part, 6 be the second insulating part, 7 be the
Three insulating parts, 11 it is that installing hole and 12 is for gap；
Fig. 5 is the circuit design drawing of the power supply providing voltage in the embodiment of the present application for electrostatic deflection plates, in figure
51 be electrostatic deflection plates, 52 for overvoltage protection resistance；
Fig. 6 and Fig. 7 is the pre-cut bundle test knot of the spallation neutron target installing pre-cut bundle device in the embodiment of the present application
Fruit figure；
Fig. 8 and Fig. 9 is the pre-cut bundle test knot of the spallation neutron target installing pre-cut bundle device in the embodiment of the present application
Fruit figure.
Detailed description of the invention
The pre-cut bundle device of the application takes the lead in using on the transfers line of spallation neutron target magnetic focusing coupling structure
Electrostatic cuts bundle, and achieves and cut bundle line rise/fall along the time less than 15ns, reaches world-class level.
Accordingly, the particle acceleration instrument of the application, assembling the pre-cut bundle device of the application when, also join
Put some coupling devices, including collimator, suppression electrode and ground electrode etc., be finally reached and cut on bundle line
Liter/trailing edge time world-class level.
It should be noted that the pre-cut bundle device of the application is primarily directed to CSNS and develops,
Therefore, the design parameter in each preferred version is all applied environment and the condition of relative spallation neutron target.Can
To understand, the pre-cut bundle device of the application, the design of its key is, makes two cube electrodes of electrostatic deflection plates
The linear change that the width of plate and mounting distance are proportionate with the diameter of line envelope, so can obtain more
Add between uniform field intensity, and less plate and plate over the ground between electric capacity, and it is possible to use more low-voltage
Power supply, reduce manufacture difficulty；Therefore, the pre-cut bundle device of the application not only limits the use of in spallation neutron target, also
May be used for the place arbitrarily wanting to realize controlling beam burst structure.
Below by specific embodiment, the application is described in further detail.Following example are only to the application
It is further described, should not be construed as the restriction to the application.
Embodiment
The pre-cut bundle device of this example includes that the electrostatic being arranged on the transfers line end of magnetic focusing, coupling structure is inclined
Flap, provides the power supply of voltage, and attached device matching used with electrostatic deflection plates for electrostatic deflection plates；
Electrostatic deflection plates is made up of two pieces of smooth battery lead plates, and two electrode plate specular are installed, and two blocks of electricity
The linear change that the width of pole plate and mounting distance are all proportionate with the diameter of line envelope.Because in spallation
Component is a huge engineering, installs and the time of system test to save, and this example utilizes simulation calculation,
Identical beam configuration is set, loads under identical voltage conditions, compare parallel-plate electrode, hang plate electrode,
The deflection effect of semicircular cylinder electrode.Wherein parallel-plate electrode refers to two cube electrode sheets are substantially parallel installation, i.e.
As the mounting distance of two electrode plate keeps；Hang plate electrode refers to tilt to install by two cube electrode sheets, as
Shown in Fig. 1；Semicircular cylinder electrode refers to design electrode slice curved structure.
Through simulation calculation, show that effective field intensity is the most by force for hang plate electrode.I.e. two cube electrode sheets are mirror image pair
The inclination claimed is installed.Further, through calculating, the width of electrode slice and distance are along with line envelope is in becoming continuously
Changing, the electrostatic deflection plates effect of this spline structure is best.Capacitance calculation formula C=ε * ε0* S/d, wherein C is electricity
Holding, ε is relative dielectric constant, ε0For permittivity of vacuum, S is that plate right opposite amasss, and d is plate spacing.
The size of electric capacity is directly proportional with the cross-sectional area between two plates.But wish deflecting plates width range intrinsic deflection field
Essentially identical, by calculating when deflecting plates width is 1.5 times of line envelope diameters, the deflection field at bundle group edge
Also be less than bundle group in the middle of deflection field, but substantially close to；If width uses 1 times of line envelope diameter,
So deflection field at bundle group edge is less, the deflection field more heterogeneity in deflecting plates width range.As for two
The distance of electrode plate is 1.2 times of best results of line envelope diameter.The simulation calculation of this example uses imitative
True simulation beam stream is by force situation during 40mA.
By simulation calculation, the final pre-cut bundle device obtaining this example, wherein, electrostatic deflection plates as it is shown in figure 1,
Being made up of two pieces of trapezoidal smooth battery lead plates, two electrode plate specular are installed, and two electrode plate
Short base draw close, make two electrode plate tilt in " eight " word structure；The width a of two electrode plate and distance d
Change with the diameter of line envelope, concrete, the line that width a is beam intensity 40mA of battery lead plate
1.5 times of envelope diameter, distance d of two electrode plate is that the line envelope of beam intensity 40mA is direct
1.2 again.The battery lead plate of this example as in figure 2 it is shown, in figure A figure be front view, B figure be lateral plan, C
Figure be line inlet end view, D figure be three-dimensional view；The trapezoidal structure of battery lead plate, the edge of battery lead plate is bent
Rate radius is 2.5mm, and length h of battery lead plate is 50mm, and the long base of every electrode plate is arranged by left and right
Two protruding installing holes 11, an installing hole of one of battery lead plate offers for installing copper cash
Gap 12.The power supply of this example, its running voltage is 3.7kV, and voltage output rise/fall edge was 10 nanoseconds,
As it is shown in figure 5, this example overvoltage protection resistance 52 of a 20k Ω in parallel in electrostatic deflection plates 51, specifically
By in this overprotection resistive arrangement to power supply.
In order to reduce the output voltage of the pulse power further and develop difficulty, reduce deflected line simultaneously and enter
Enter ill effect produced by RFQ cavity, only require that line, not by RFQ, excises beam loss at RFQ
Intracavity, at this moment, only need to run off the horizontal receiving degree of RFQ, then just can reduce further by beam bending
Deflection voltage and save and cut bundle target.Through calculating, when deflection voltage is 3.8kV, line passing through at RFQ
Rate can be reliably zero.Output voltage 3.8kV, such pulse power the most easily prepared, and,
Its beam energy is low, and power is little, and the harmful effect to RFQ is the least.
The pre-cut bundle device of this example is primarily directed to spallation neutron target and designs, and particle acceleration instrument includes straight line
Accelerator and ringotron, linear accelerator sequentially includes transfers line, quadrapole after ion source
Accelerator, middle energy transmission line and drift tube accelerator；The pre-cut bundle device of this example is installed on transfers line most end
End, is positioned at the porch of quadrapole accelerator.The installation of pre-cut bundle device as shown in Figure 3 and Figure 4, pre-cut bundle
Device is arranged on LEBT least significant end, and is positioned at RFQ porch, before the electrostatic deflection plates 1 of pre-cut bundle device also
It is sequentially added by equipped with collimator 2, the suppression attached device such as electrode 3 and ground electrode 4, suppression electrode 3 and ground electrode
4 connect by the first insulating part 5 is fixing, and ground electrode 4 and electrostatic deflection plates 1 are fixed by the second insulating part 6
Connecting, electrostatic deflection plates 4 is fixed in mounting bracket by the 3rd insulating part 7.
Wherein, the aperture of collimator 2 is identical with line envelope, exempts from protection suppression electrode and pre-cut bundle device
The bombardment of particle beam and cause high voltage arc.The effect of collimator 2 and suppression electrode 3 is by electrostatic field office
Territory, to avoid the destruction of the LEBT space charge neutralization effect to pre-cut bundle device upstream.Because collimator
Can produce a new electric field in the regional extent that it shrouds with making alive with suppression electrode, particle beam exists
Local fields is different with the state of non-local field.
CSNS accelerator front end system equipment, i.e. particle acceleration instrument, April 6 in 2015
Complete day to install, April 21, working in concert through each related system, the progress of racing against time of working extra shifts or extra hours,
Completing each subsystem equipment debugging, only with the time of 15 days, rfq accelerator becomes merit and goes out bundle, at RFQ
Exit obtains 3MeV, the negative hydrogen ion line of pulse width 50 μ s, and peak value stream reaches by force 28mA.
During going out bundle, the beam voltage of cutting of bundle loading cut by electrostatic pre-cut bundle device is 3.7kV, and theoretical value before
For 3.8kV, cutting binding fruit as shown in Figure 6 and Figure 7, this electrostatic pre-cut bundle device is by repetition rate 1HZ, Hong Mai
Rushing 100us and be cut into repetition rate 1MHz, pulse length is the bundle group of 500ns.Further, from Fig. 8 and
In Fig. 9, it can be seen that cut bundle line either rising edge or trailing edge length about 4 to 5 is penetrated
Frequently the cycle, a rf period is 3.086ns, therefore, cuts bundle line rise/fall and is respectively less than 15ns along the time.
Visible, prepared by this example pre-cut bundle device, and the particle acceleration instrument of the pre-cut bundle device of this example is installed,
Use relatively low supply voltage, effectively achieve the function of pre-cut bundle, and reached to cut bundle line rise/
Trailing edge time the first in the world level less than 15ns.The production that relatively low supply voltage also reduces power supply is difficult
Degree and manufacturing cost, the pre-cut bundle for spallation neutron target provides a kind of new equipment and scheme.
Above content is to combine the further description that the application is made by specific embodiment, it is impossible to recognize
Determine the application be embodied as be confined to these explanations.Ordinary skill for the application art
For personnel, on the premise of conceiving without departing from the application, it is also possible to make some simple deduction or replace,
All should be considered as belonging to the protection domain of the application.
Claims (10)
1. the pre-cut bundle device controlled for beam burst, it is characterised in that: include being arranged on magnetic focusing,
The electrostatic deflection plates of the transfers line end of distribution structure, provides the power supply of voltage for electrostatic deflection plates, and
Attached device matching used with electrostatic deflection plates；Described attached device is installed on the end of transfers line,
And before being positioned at electrostatic deflection plates；Described electrostatic deflection plates is made up of two pieces of smooth battery lead plates, two cube electrodes
Plate specular is installed, and the width of two electrode plate and mounting distance all with the diameter of line envelope in just
Relevant linear change.
Pre-cut bundle device the most according to claim 1, it is characterised in that: the width of two electrode plate is line
1.2-1.8 times of envelope diameter, the distance of two electrode plate is 1.0-1.4 times of line envelope diameter.
Pre-cut bundle device the most according to claim 1, it is characterised in that: the width of two electrode plate is line
1.5 times of envelope diameter, the distance of two electrode plate is 1.2 times of line envelope diameter, described line envelope
Line envelope for beam intensity 40mA.
Pre-cut bundle device the most according to claim 1, it is characterised in that: the maximum output voltage of described power supply
Less than 6kV, voltage output rise/fall is along less than 10 nanoseconds.
Pre-cut bundle device the most according to claim 1, it is characterised in that: the running voltage of described power supply is
3.7kV。
6. according to the pre-cut bundle device described in any one of claim 1-5, it is characterised in that: described electrostatic deflection plates
A upper overvoltage protection resistance (52) in parallel.
Pre-cut bundle device the most according to claim 6, it is characterised in that: the resistance of described overvoltage protection resistance
For 20k Ω.
8. according to the pre-cut bundle device described in any one of claim 1-5, it is characterised in that: described attached device bag
Include collimator (2), suppression electrode (3) and the ground electrode (4) sequentially arranged, suppression electrode (3) and ground
Electrode (4) connects by insulating part is fixing, and ground electrode (4) and electrostatic deflection plates (1) are also by insulating part
Fixing connection.
Pre-cut bundle device the most according to claim 8, it is characterised in that: described collimator (2) and ground electricity
The aperture of pole (4) is identical with line envelope.
10. according to the pre-cut bundle device described in any one of claim 1-5, it is characterised in that: every electrode plate
Arrange by two, left and right protruding installing hole (11) on long base, on an installing hole of one of battery lead plate
Offer the gap (12) for installing copper cash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268957.3A CN105979694B (en) | 2016-04-26 | 2016-04-26 | A kind of pre-cut beam device for beam burst control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268957.3A CN105979694B (en) | 2016-04-26 | 2016-04-26 | A kind of pre-cut beam device for beam burst control |
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| Publication Number | Publication Date |
|---|---|
| CN105979694A true CN105979694A (en) | 2016-09-28 |
| CN105979694B CN105979694B (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610268957.3A Expired - Fee Related CN105979694B (en) | 2016-04-26 | 2016-04-26 | A kind of pre-cut beam device for beam burst control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108347043A (en) * | 2018-03-06 | 2018-07-31 | 合肥中科离子医学技术装备有限公司 | A kind of electrical protection systems of cyclotron electrostatic deflection plates |
| CN111385958A (en) * | 2020-04-07 | 2020-07-07 | 哈尔滨工业大学 | Novel arc bevel edge electrostatic deflection plate and particle accelerator chopper |
| CN113365408A (en) * | 2021-05-20 | 2021-09-07 | 中国原子能科学研究院 | Accelerating structure and multi-cavity accelerator |
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|---|---|---|---|---|
| CN108347043A (en) * | 2018-03-06 | 2018-07-31 | 合肥中科离子医学技术装备有限公司 | A kind of electrical protection systems of cyclotron electrostatic deflection plates |
| CN111385958A (en) * | 2020-04-07 | 2020-07-07 | 哈尔滨工业大学 | Novel arc bevel edge electrostatic deflection plate and particle accelerator chopper |
| CN113365408A (en) * | 2021-05-20 | 2021-09-07 | 中国原子能科学研究院 | Accelerating structure and multi-cavity accelerator |
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| CN105979694B (en) | 2018-10-26 |
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