CN110035597A - A kind of frequency conversion nonresonant cavity configuration - Google Patents
A kind of frequency conversion nonresonant cavity configuration Download PDFInfo
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- CN110035597A CN110035597A CN201910359890.8A CN201910359890A CN110035597A CN 110035597 A CN110035597 A CN 110035597A CN 201910359890 A CN201910359890 A CN 201910359890A CN 110035597 A CN110035597 A CN 110035597A
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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
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/04—Synchrotrons
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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
- H05H7/14—Vacuum chambers
- H05H7/18—Cavities; Resonators
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Abstract
The invention discloses a kind of frequency conversion nonresonant cavity configurations, comprising: at least two basic coaxial resonant cavity units；Basic coaxial resonant cavity unit successively laid out in parallel；Each basic coaxial resonant cavity unit includes the first resonant cavity and the second resonant cavity being connected with coaxial manner, and is set to the accelerating gap between the first resonant cavity and the second resonant cavity with coaxial manner；It is coaxial in first resonant cavity and the second resonant cavity to be provided with beam current tube, beam current tube in first resonant cavity is set in distance in accelerating gap with the beam current tube in the second resonant cavity, with the accelerating slit in basis of formation coaxial resonant cavity unit, it is nested with ceramic insulation casing in the outside of accelerating slit, the both ends of insulating ceramics casing are connect with the end of the beam current tube of respective side respectively；Beam current tube between adjacent two basic coaxial resonant cavity units is connected with each other；External power source is connect by transmission line with the accelerating slit in all basic coaxial resonant cavity units.
Description
Technical field
The present invention relates to a kind of frequency conversion nonresonant cavity configuration, in particular to a kind of frequency conversion nonresonant of permalloy material load
Cavity configuration belongs to synchrotron high frequency LOADED CAVITY technical field.
Background technique
Synchrotron is a kind of accelerator that current high energy acclerator field is most widely used, in space flight, biology, material
The fields such as material and particle therapy have a wide range of applications.Frequency cavity is counterweight as the most important component part of synchrotron
The charged particles such as ion, proton such as are captured, are accelerated, are slowed down, rotated and are compressed at longitudinal main field with lateral operation
Institute: frequency cavity can receive the power from power source feed-in, and using forming institute in the accelerating gap of the power in the cavity
High frequency, the high voltage electric field needed, the charged particles such as heavy ion, proton, which enter after high frequency cavity, to be occurred at accelerating gap with the electric field
Interaction is to obtain the charged particles line such as required heavy ion, proton.
The prior art of synchrotron frequency cavity is broadly divided into the frequency conversion tuning cavity of Ferrite Material load and magnetic closes
The frequency conversion nonresonant chamber of golden material load.The frequency conversion tuning cavity of Ferrite Material load belong in synchrotron develop it is relatively early,
Technology more tradition, widely used a kind of frequency cavity, but it has more apparent defect, as system structure is complicated,
It is only operable on tuning (resonance) state, frequency band is narrow, accelerating gradient is low etc.；The frequency conversion nonresonant chamber of permalloy material load is mesh
Relatively advanced a kind of frequency cavity in preamble accelerator, compared with the frequency conversion tuning cavity that traditional Ferrite Material loads,
It is succinctly not necessarily to tune with system, may operate in the advantages such as detuning state, bandwidth, accelerating gradient height.
Carry out less, current only Chinese Academy of Sciences's modern age to the frequency conversion nonresonant chamber real work that permalloy material loads in the country
Physics Institute, Shanghai and Tsing-Hua University have carried out research work, and respectively successfully process permalloy material loading and frequency conversion nonresonant
Chamber.The structure principle chart of domestic existing permalloy material loading and frequency conversion nonresonant chamber at present, as shown in Figure 1, this three cavitys
It is all made of single accelerating gap structure, strong wind cooling, operating voltage not more than 2kV, permalloy material full-size is (outside directly
Diameter) it is no more than φ 460mm, accelerating gradient is no more than 3kV/m.As can be seen that domestic existing permalloy material load becomes
Frequency nonresonant cavity configuration has the following deficiencies: that 1. operating voltage is low with accelerating gradient, can not be from cavity voltage and accelerating gradient
The frequency conversion tuning cavity that the frequency conversion nonresonant chamber that aspect embodies permalloy material load is loaded relative to Ferrite Material is had
Advantage.2. with the raising of required operating voltage, if continued using the domestic current non-tune of permalloy material loading and frequency conversion
The humorous chamber prior art, then permalloy material, the cavity longitudinal length etc. loaded needed for cavity can be doubled and redoubled, and cause cavity electric
Length is continuously increased, to enable cavity short-circuit end and open terminal voltage gap excessive, accelerating gradient does not have and is obviously improved.
3. with the raising of required operating voltage, cavity loss power can increase sharply with the relationship of voltage squared, so that high wind is not
It is able to satisfy the cooling of permalloy material to require, the temperature of material internal can lead to material rapidly close to the Curie temperature of its own
Performance decline, to can fall into, cavity power loss is further increased, material high-frequency loss continues the vicious circle increased.4. magnetic
Alloy material full-size (overall diameter) is no more than φ 460mm, and permalloy material limited capacity can not mention in terms of material property
Rise the indexs such as cavity accelerating gradient.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of load of large-power broadband high voltage permalloy material is more
Accelerating gap liquid cooling frequency conversion nonresonant cavity configuration, the structure can effectively improve operating voltage provided by cavity and accelerate ladder
Degree, the apparent temperature for reducing permalloy material, the installation length of compression chamber and loaded magnetic under equal frequencies and voltage
The quantity of alloy material.The structure is applied to synchrotron high frequency LOADED CAVITY, it is higher to can be realized synchrotron output
The charged particles lines such as the high current heavy ion of energy, proton.
To achieve the above object, the present invention uses following technical scheme, a kind of frequency conversion nonresonant cavity configuration, and feature exists
In, comprising:
At least two basic coaxial resonant cavity units；The basis coaxial resonant cavity unit successively laid out in parallel；Each
The basis coaxial resonant cavity unit includes the first resonant cavity and the second resonant cavity being connected with coaxial manner, and with coaxial
Mode is set to the accelerating gap between first resonant cavity and the second resonant cavity；First resonant cavity and the second resonant cavity
Inside coaxial is provided with beam current tube, the beam current tube in first resonant cavity and the line pipe in second resonant cavity
Road is set in distance in the accelerating gap, with the accelerating slit formed in the basic coaxial resonant cavity unit, adds described
The outside of speed seam is nested with ceramic insulation casing, the both ends of the insulating ceramics casing respectively with the beam current tube of respective side
End connection；The beam current tube between the adjacent two basic coaxial resonant cavity units is connected with each other；
External power source is connect by transmission line with the accelerating slit in all basic coaxial resonant cavity units, so that institute
It states in all basic coaxial resonant cavity units of power feed-in simultaneously of external power source final stage output, and loads in each institute
State the both ends of the accelerating slit in basic coaxial resonant cavity unit.
Preferably, the structure of first resonant cavity and the second resonant cavity is identical, includes:
Inner conductor is formed with cylindrical cavity in the inner conductor；The beam current tube is mounted in the inner conductor
In cylindrical cavity；
Outer conductor is set to the outside of the inner conductor；
Magnetic alloy ring, multiple magnetic alloy rings are arranged between the axial direction between inner conductor and outer conductor and along beam current tube
Every distribution；
The both ends face closure of the inner conductor and outer conductor axial direction, to form enclosed first resonant cavity and the second resonance
Chamber has been each filled with coolant liquid in first resonant cavity and the second resonant cavity.
Preferably, coolant inlet and coolant liquid are respectively provided on the outer conductor of first resonant cavity and the second resonant cavity
Outlet；Leakage valve and air outlet valve are respectively provided on the outer conductor of first resonant cavity and the second resonant cavity.
Preferably, first resonant cavity and the second resonant cavity are all made of quarter-wave coaxial resonant cavity, and described
The short-circuit end of one resonant cavity and the second resonant cavity forms high-frequency resistance between the internal and external conductor of its own；First resonance
For the open end of chamber and the second resonant cavity in being oppositely arranged, the open end of first resonant cavity and the second resonant cavity is all made of insulation
Dielectric disk is closed, and opens up the through-hole passed through for beam current tube on the dielectric disk；The accelerating gap is located at
Between the open end of the open end of first resonant cavity and the second resonant cavity, the outer conductor of the accelerating gap and described first humorous
Vibration chamber, the second resonant cavity outer conductor between be respectively formed good high-frequency resistance；The beam current tube and corresponding described
Good high-frequency resistance is formed between the short-circuit end of first resonant cavity and the second resonant cavity.
Preferably, the quantity of first resonant cavity and the magnetic alloy ring in the second resonant cavity is identical, and multiple magnetic close
Jin Huan is according to its performance open end of the sequence in first resonant cavity or second resonant cavity from high to low to short circuit
End is successively spaced apart.
Preferably, short-circuit end plate is arranged in one end between the inner conductor and outer conductor, forms first resonant cavity
Or the first short-circuit end on resonant cavity, accommodating is opened up on the end face of the outer conductor and inner conductor ipsilateral with the short-circuit end
Slot, the accommodation groove is interior to place high frequency spring, and the short circuit end plate, which compresses, to be arranged in the inner conductor ipsilateral with it and lead outside
On the end face of body.
Preferably, hydraulic seal slot, institute are opened up on the end face of the dielectric disk with the open circuit end in contact
It states and places sealing ring in hydraulic seal slot.
Preferably, the two-way inversion signal of the final stage output of the external power source passes through two high power transmission lines and two
Transmission lines are connected directly, wherein a transmission line respectively with the accelerating slit of all almost coaxial resonator unit
One end connection, another transmission line connect with the other end of the accelerating slit of all almost coaxial resonator unit respectively
It connects.
Alternatively, the external power source is connected with two transmission lines respectively by one-to-two reverse phase power divider, it is described
The final stage of external power source exports signal all the way.
Preferably, rosette is respectively set in the outside of the beam current tube of insulating ceramics casing two sides, institute
It states and is formed well between the inner conductor of rosette and the beam current tube or the corresponding first or second resonant cavity
High-frequency resistance, the rosette is fixedly connected with insulating ceramics casing.
It preferably, further include the bracket for being used to support the frequency conversion nonresonant cavity configuration.
The invention adopts the above technical scheme, has the advantages that 1, frequency conversion nonresonant cavity configuration provided by the invention,
At least two basic coaxial resonant cavity units including laid out in parallel, each basis coaxial resonant cavity unit include coaxially connected two
Resonant cavity and the accelerating gap between two resonant cavities, the beam current tube phase between adjacent two basic coaxial resonant cavity units
Connection, external power source is connect by transmission line with the accelerating slit in all coaxial resonant cavity units, so that external power source is defeated
In all basic coaxial resonant cavity units of the feed-in simultaneously of power out；To form large-power broadband high voltage permalloy material
The frequency conversion nonresonant cavity configuration for loading more accelerating gaps can effectively improve operating voltage provided by cavity and accelerate ladder
Degree.
2, resonant cavity of the invention is enclosed construction, magnetic alloy ring is arranged in resonant cavity, full of cold in resonant cavity
But liquid cools down magnetic alloy ring by way of directly cooling down, when working under high voltage, high-power state, Neng Gouyou
The temperature of effect control permalloy material rises, and guarantees the stabilization of permalloy material temperature and performance；Avoid mentioning because of power loss
Damage that is high and leading to magnetic alloy ring, improves operating voltage gradient.
3, the power of external power source is evenly distributed at the accelerating slit of all basic coaxial resonant cavity units by the present invention,
It is possible to prevente effectively from phenomena such as excessive operating voltage bring is struck sparks, is punctured；Under identical frequency point and voltage, frequency conversion nonresonant
Cavity configuration is more compact, longitudinal length is shorter, reduces magnetic alloy ring and loads quantity.It can effectively be saved applied in synchrotron
The limited longitudinal size of synchrotron.
4, the present invention be applied to synchrotron in, can be realized synchrotron output higher energy high current weight from
The charged particles such as son, proton line become and can accelerate to charged particle beam stream.
Detailed description of the invention
Fig. 1 is the structure principle chart of domestic existing permalloy material loading and frequency conversion nonresonant chamber；
Fig. 2 is the structure principle chart of frequency conversion nonresonant cavity configuration of the present invention；
Fig. 3 is comprising there are three the schematic diagrames of the frequency conversion nonresonant cavity configuration of basic coaxial resonant cavity unit；
Fig. 4 is the A-A profile structure diagram in Fig. 3；
Fig. 5 is the B-B cross-section structure diagram in Fig. 3；
Fig. 6 is the isometric side structure schematic diagram of Fig. 3.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below with reference to attached drawing, it is of the invention to be clearer to understand
Objects, features and advantages.It should be understood that embodiment shown in the drawings does not limit the scope of the present invention, and only it is
Illustrate the connotation of technical solution of the present invention.
As figures 2-6, the present invention provides a kind of frequency conversion nonresonant cavity configuration comprising: at least two be arranged successively
Basic coaxial resonant cavity unit 1；Each basis coaxial resonant cavity unit 1 includes the resonant cavity 11 and resonance connected with coaxial manner
Chamber 12, and the accelerating gap 13 between 11 resonant cavity 12 of resonant cavity is set to coaxial manner；11 resonant cavity of resonant cavity
Beam current tube 14 is coaxially arranged in 12, the beam current tube 14 in 14 resonant cavity 12 of beam current tube in resonant cavity 11 is adding
It is set in distance in fast gap 13, so that the accelerating slit 15 in basis of formation coaxial resonant cavity 1, is nested in the outside of accelerating slit 15
Ceramic insulation casing 16, the both ends of insulating ceramics casing 16 are connect with the end of the beam current tube of respective side 14 respectively；Adjacent two
It is connected with each other between beam current tube 14 between basic coaxial resonant cavity unit 1；
External power source 2 is connect by transmission line with the accelerating slit 15 in all coaxial resonant cavity units 1, so that circumferential work
In all basic coaxial resonant cavity units 1 of the power that rate source 2 exports feed-in simultaneously, and load in each basic coaxial resonant cavity list
The both ends of accelerating slit 15 in member 1.
In the use of the present invention, the output power of external power source 2 is coaxial humorous by all bases of transmission line feed-in simultaneously
It shakes in chamber unit 1, and loads the both ends of the accelerating slit 15 in each basic coaxial resonant cavity unit 1, thus in each acceleration
Rf electric field needed for being respectively formed operation line in seam 15, effectively improves the accelerating gradient and institute's energy in frequency conversion nonresonant cavity configuration
The maximum operating voltage of offer.
Further, the structure of 11 resonant cavity 12 of resonant cavity is identical, includes:
Inner conductor 102 is formed with cylindrical cavity in inner conductor 102, and beam current tube 14 is mounted on the circle in inner conductor 102
In cylindrical cavity；
Outer conductor 101 is set to the outside of inner conductor 102；
Magnetic alloy ring 103, multiple magnetic alloy rings 103 are arranged between inner conductor 102 and outer conductor 101 and along beam current tube
14 axially spaced-apart distribution；
101 axial ends face closure of inner conductor 102 and outer conductor, to form enclosed 11 resonant cavity of resonant cavity
12, coolant liquid has been each filled in 11 resonant cavity 12 of resonant cavity；
Magnetic alloy ring body 103 is cooled down by way of directly cooling down, can timely and effectively reduce magnetic alloy
The temperature of ring 103 avoids the damage for leading to magnetic alloy ring 103 because of the raising of power loss, improves operating voltage gradient；Make
Obtaining resonant cavity can be in high-voltage gradient (> 20kV/m), high power density (>=0.4W/cc), broadband (>=5 frequency multiplication) state
Lower normal work.
Further, coolant inlet 4 is respectively provided on the outer conductor 101 of 11 resonant cavity 12 of resonant cavity and coolant liquid goes out
Mouth 3, is added coolant liquid into 11 resonant cavity 12 of resonant cavity to facilitate, and coolant liquid is allowed sufficiently to flow.It is harmonious in resonant cavity 11
Leakage valve 5 and air outlet valve 6 are respectively provided on the outer conductor 101 of vibration chamber 12.
Further, the structure of 11 resonant cavity 12 of resonant cavity is identical, is all made of quarter-wave coaxial resonant cavity, humorous
The short-circuit end 7 of vibration 11 resonant cavity 12 of chamber forms good high-frequency resistance between the internal and external conductor of its own；Resonant cavity 11
Open end resonant cavity 12 open end 8 in being oppositely arranged, the open end of 11 resonant cavity 12 of resonant cavity is all made of insulation and is situated between
Matter disk 9 is closed, and the through-hole passed through for beam current tube 14 is opened up on dielectric disk 9；Accelerating gap 13 is located at resonance
Between the open end 8 of chamber 11 and the open end 8 of resonant cavity 12, outer conductor and the outer of resonant cavity 11,12 of accelerating gap 13 are led
Good high-frequency resistance is respectively formed between body 101.
Further, the quantity of the magnetic alloy ring 103 in 11 resonant cavity 12 of resonant cavity is identical, multiple magnetic alloy rings 103
It is successively spaced apart according to open end 8 of its performance from high to low in order in resonant cavity 11 or resonant cavity 12 to short-circuit end 7,
The amount of size of magnetic alloy ring 103 then needs to be determined according to the specific design requirement of resonant cavity with performance indicator.
Further, beam current tube 14 is mounted in the cylindrical cavity in inner conductor 102, and is required after the determination of its position
Fixed with cylindrical cavity, specific fixing means as the case may be depending on；Beam current tube 14 and corresponding resonant cavity 11
Good high-frequency resistance is formed between 12 short-circuit end.
Further, the mode of fluting addition high frequency spring can be used to realize in high-frequency resistance.
Further, short-circuit end plate 10 is arranged in one end between inner conductor 102 and outer conductor 101, to form resonance
Short-circuit end 7 in 11 resonant cavity 12 of chamber opens up appearance on the end face of the outer conductor 101 and inner conductor 102 ipsilateral with short-circuit end 7
Slot (not shown) is set, high frequency spring is placed in accommodation groove, the inner conductor 102 ipsilateral with it is arranged in the short-circuit compression of end plate 10
On the end face of outer conductor 101；Sprung back since high frequency spring is pressurized so that the end face of short-circuit end plate 10 and inner conductor 102 and
The end face of outer conductor 101 remains good contact, so that the short-circuit end 7 of 11 resonant cavity 12 of resonant cavity is interior with its own
Good high-frequency resistance is formed between outer conductor；
Further, hydraulic seal slot is opened up on the end face of the dielectric disk 9 contacted with open end 8 (in figure not
Show), hydraulic seal slot is interior to place sealing ring, guarantees coolant liquid ne-leakage.
Further, external power source 2 and the connection type of frequency conversion anharmonic resonator structure are direct-coupling, specifically: it is outer
The two-way inversion signal that portion's power source 2 exports passes through two high power transmission lines 20 and two transmission lines 21 (BusBar) direct phases
Even, wherein a transmission lines 21 are connect with one end of the accelerating slit 15 of all almost coaxial resonator unit 1 respectively, another biography
Defeated line 21 is connect with the other end of the accelerating slit 15 of all almost coaxial resonator unit 1 respectively；In this way, frequency conversion disresonance chamber knot
Power needed for structure can be by all almost coaxial resonator unit 1 of feed-in in parallel simultaneously of transmission line 21；It is described high-power
Index size of transmission line etc. need to be determined according to specific design requirement.
Further, external power source 2 is connected with two transmission lines 21 respectively by one-to-two reverse phase power divider, outside
Signal by one-to-two reverse phase power divider is divided into two-way inversion signal all the way for the final stage output of portion's power source 2, and incoming two
In transmission lines 21.
Further, the both ends of cermet welding 16 are respectively between the end of the beam current tube of respective side 14 using gold
Belong to ceramic welding mode to connect.
Further, rosette 17 is respectively set in the outside of the beam current tube 14 of 16 two sides of insulating ceramics casing, gold
Good high frequency is formed between category disk 17 and beam current tube 14 or corresponding resonant cavity 11 or 12 inner conductor 102 to connect
Touching, rosette 17 are fixedly connected with insulating ceramics casing 16, to facilitate connection transmission line (BusBar) and other circuit knots
Structure.
Further, the invention also includes the brackets 18 for being used to support frequency conversion nonresonant cavity configuration.
The present invention is only illustrated with above-described embodiment, and structure, setting position and its connection of each component are all can have
Changed.Based on the technical solution of the present invention, the improvement or equivalent that all principles according to the present invention carry out individual part
Transformation, should not exclude except protection scope of the present invention.
Claims (10)
1. a kind of frequency conversion nonresonant cavity configuration characterized by comprising
At least two basic coaxial resonant cavity units (1)；Basis coaxial resonant cavity unit (1) the successively laid out in parallel；It is each
A basic coaxial resonant cavity unit (1) includes the first resonant cavity (11) and the second resonant cavity being connected with coaxial manner
(12), and with coaxial manner it is set to the accelerating gap between first resonant cavity (11) and the second resonant cavity (12)
(13)；It is coaxial in first resonant cavity (11) and the second resonant cavity (12) to be provided with beam current tube (14), described first
The beam current tube (14) in beam current tube (14) and second resonant cavity (12) in resonant cavity (11) is in the accelerating gap
(13) it is set in distance in, with the accelerating slit (15) formed in the basic coaxial resonant cavity unit (1), in the accelerating slit
(15) outside is nested with ceramic insulation casing (16), the both ends of the insulating ceramics casing (16) respectively with the beam of respective side
The end in flow tube road (14) connects；The beam current tube (14) phase between the adjacent two basic coaxial resonant cavity units (1)
It connects；
External power source (2) is connect by transmission line with the accelerating slit (15) in all basic coaxial resonant cavity units (1),
So that in all basic coaxial resonant cavity units (1) of the power feed-in simultaneously of external power source (2) the final stage output, and
Load the both ends of the accelerating slit (15) in each basic coaxial resonant cavity unit (1).
2. a kind of frequency conversion nonresonant cavity configuration as described in claim 1, which is characterized in that first resonant cavity (11) and the
The structure of two resonant cavities (12) is identical, includes:
Inner conductor (102), the inner conductor (102) is interior to be formed with cylindrical cavity, and the beam current tube (14) is mounted on described
In cylindrical cavity in inner conductor (102)；
Outer conductor (101), is set to the outside of the inner conductor (102)；
Magnetic alloy ring (103), multiple magnetic alloy rings (103) are arranged between inner conductor (102) and outer conductor (101) and edge
The axially spaced-apart of the beam current tube (14) is distributed；
The both ends face closure of the inner conductor (102) and outer conductor (101) axial direction, to form enclosed first resonant cavity (11)
With the second resonant cavity (12), coolant liquid has been each filled in first resonant cavity (11) and the second resonant cavity (12).
3. a kind of frequency conversion nonresonant cavity configuration as claimed in claim 2, it is characterised in that: in first resonant cavity (11) and
Coolant inlet (4) and cooling liquid outlet (3) are respectively provided on the outer conductor (101) of second resonant cavity (12)；It is humorous described first
Leakage valve (5) and air outlet valve (6) are respectively provided on the outer conductor (101) of vibration chamber (11) and the second resonant cavity (12).
4. a kind of frequency conversion nonresonant cavity configuration as claimed in claim 2, it is characterised in that: first resonant cavity (11) and the
Two resonant cavities (12) are all made of quarter-wave coaxial resonant cavity, first resonant cavity (11) and the second resonant cavity (12)
Short-circuit end (7) forms high-frequency resistance between the internal and external conductor of its own；First resonant cavity (11) and the second resonant cavity
(12) in being oppositely arranged, the open end of first resonant cavity (11) and the second resonant cavity (12) is all made of absolutely open end (8)
Edge dielectric disk (9) is closed, and opens up the through-hole passed through for beam current tube (14) on the dielectric disk (9)；It is described
Accelerating gap (13) is located between the open end (8) of the first resonant cavity (11) and the open end (8) of the second resonant cavity (12), institute
State accelerating gap (13) outer conductor and first resonant cavity (11), the second resonant cavity (12) outer conductor (101) between
Form good high-frequency resistance；The beam current tube (14) and corresponding first resonant cavity (11) and the second resonance
Good high-frequency resistance is formed between the short-circuit end of chamber (12).
5. a kind of frequency conversion nonresonant cavity configuration as claimed in claim 4, it is characterised in that: first resonant cavity (11) and the
The quantity of magnetic alloy ring (103) in two resonant cavities (12) is identical, multiple magnetic alloy rings (103) according to its performance from height to
The low open end (8) in first resonant cavity (11) or second resonant cavity (12) in order to short-circuit end (7) successively
It is spaced apart.
6. a kind of frequency conversion nonresonant cavity configuration as claimed in claim 4, it is characterised in that: in the inner conductor (102) and outside
Short-circuit end plate (10) is arranged in one end between conductor (101), to be formed on first resonant cavity 11 or the first resonant cavity 12
Short-circuit end (7), open up appearance on the end face of the outer conductor (101) and inner conductor (102) ipsilateral with the short-circuit end (7)
Slot is set, high frequency spring is placed in the accommodation groove, the short circuit end plate (10), which compresses, is arranged in the inner conductor ipsilateral with it
(102) and on the end face of outer conductor (101).
7. a kind of frequency conversion nonresonant cavity configuration as claimed in claim 4, it is characterised in that: contacted with the open end (8)
The dielectric disk (9) end face on open up hydraulic seal slot, sealing ring is placed in the hydraulic seal slot.
8. a kind of frequency conversion nonresonant cavity configuration as described in claim 1, it is characterised in that: the end of the external power source (2)
The two-way inversion signal of grade output is connected directly by two high power transmission lines (20) with two transmission lines (21), wherein one
The transmission line (21) connect with one end of the accelerating slit (15) of all almost coaxial resonator unit (1) respectively, another
Transmission line described in item (21) is connect with the other end of the accelerating slit (15) of all almost coaxial resonator unit (1) respectively.
Alternatively, the external power source (2) is connected with two transmission lines (21) respectively by one-to-two reverse phase power divider, institute
The final stage for stating external power source (2) exports signal all the way.
9. a kind of frequency conversion nonresonant cavity configuration as described in claim 1, it is characterised in that: in the insulating ceramics casing (16)
The outside of the beam current tube (14) of two sides is respectively set rosette (17), the rosette (17) and the line pipe
It is formed between road (14) or corresponding first resonant cavity (11) or the inner conductor (102) of second resonant cavity (12)
Good high-frequency resistance, the rosette (17) are fixedly connected with insulating ceramics casing (16).
10. a kind of frequency conversion nonresonant cavity configuration as described in any one of claim 1 to 9, it is characterised in that: further include for branch
Support the bracket (18) of the frequency conversion nonresonant cavity configuration.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113858A (en) * | 2019-05-29 | 2019-08-09 | 中国科学院近代物理研究所 | A kind of minimum Q value self-excitation tuning system and tuning methods |
| CN115226285A (en) * | 2022-08-24 | 2022-10-21 | 迈胜医疗设备有限公司 | Rotating capacitor for synchrocyclotron |
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| CN110113858A (en) * | 2019-05-29 | 2019-08-09 | 中国科学院近代物理研究所 | A kind of minimum Q value self-excitation tuning system and tuning methods |
| CN110113858B (en) * | 2019-05-29 | 2023-04-18 | 中国科学院近代物理研究所 | Minimum Q value self-excitation tuning system and tuning method |
| CN115226285A (en) * | 2022-08-24 | 2022-10-21 | 迈胜医疗设备有限公司 | Rotating capacitor for synchrocyclotron |
| CN115226285B (en) * | 2022-08-24 | 2024-01-26 | 迈胜医疗设备有限公司 | Rotary capacitor for synchrocyclotron |
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