CN108806818A - A kind of four knife diaphragms of adjustable neutron flow - Google Patents
A kind of four knife diaphragms of adjustable neutron flow Download PDFInfo
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- CN108806818A CN108806818A CN201810344839.5A CN201810344839A CN108806818A CN 108806818 A CN108806818 A CN 108806818A CN 201810344839 A CN201810344839 A CN 201810344839A CN 108806818 A CN108806818 A CN 108806818A
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- sliding block
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
- G21K1/043—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers changing time structure of beams by mechanical means, e.g. choppers, spinning filter wheels
Abstract
The invention discloses a kind of four knife diaphragms of adjustable neutron flow, its diaphragm shell includes shell upper plate, shell lower plate, shell left plate, shell right plate, case nose flange, outer casing back flange, apertured substrate is embedded in the shell accommodating cavity of diaphragm shell, apertured substrate is loaded by left and right side connecting fin plate spiral shell is fixed in shell lower plate upper surface, inlay card boron carbide square tube in the substrate through-hole of apertured substrate；Installing longitudinal knife piece component, lateral blade assembly in shell accommodating cavity, longitudinal blade assembly include longitudinal boron carbide board, upper end guide rail, lowermost guide rail, longitudinally connected plate, upper end sliding block mounting plate, upper end sliding block, lower end sliding block mounting plate, lower end sliding block；Lateral blade assembly includes lateral boron carbide board, left end guide rail, right end guide rail, cross connecting plate, left end sliding block mounting plate, left end sliding block, right end sliding block mounting plate, right end sliding block.The present invention has the advantages that novel in design, controllability is strong, and effectively neutron current amount can be adjusted.
Description
Technical field
The present invention relates to spallation neutron target technical field more particularly to a kind of four knife diaphragms of adjustable neutron flow.
Background technology
The neutron with high-energy is generated using spallation neutron target, and is transmitted to the neutron of high-energy by neutron guide tube
More physics spectrometers, then carry out a series of Physical Experiment again.Wherein, neutron transmits the loss for having energy in neutron guide tube
Also it to prevent from radiating, neutron guide tube will maximumlly transmit neutron and reduce the loss of the energy in transmittance process, neutron guide tube
Inside is by ceaselessly by neutron reflection, transmission, finally making neutron be transmitted on more physics spectrometers and being tested.
Neutron guide tube is essential in the engineering of whole more physics spectrometers；More physics spectrometers will use neutron progress
Various experiments, it is necessary to from the sample environment that target station draws that neutron reaches spectrometer.
According to the experiment condition of spectrometer, needs more physics spectrometers that can provide the neutron beam of different flow, often change neutron
The size of flow is designed in terms of target station, and the throughput of high-energy neutron is controlled.When changing neutron flow, often
A large amount of neutron irradiation is generated, it is high to the requirement on devices around target station.
For the above situation, it is necessary to design corresponding mechanism of diaphragm to control the flow during Neutron Transmission.
Invention content
The purpose of the present invention is to provide a kind of four knife diaphragms of adjustable neutron flow, and the four of neutron flow are adjusted in this
Knife mechanism of diaphragm is novel in design, controllability is strong, and effectively neutron current amount can be adjusted.
In order to achieve the above objectives, the present invention is achieved through the following technical solutions.
A kind of four knife diaphragms of adjustable neutron flow, include diaphragm shell, and diaphragm shell includes respectively in level
The shell upper plate of lateral arrangement, shell lower plate and be in shell left plate, the shell right plate being vertically arranged, shell respectively
Upper plate is located at the surface of shell lower plate and shell upper plate and shell lower plate arranged for interval, shell left plate are located at outer
The left end side and shell left plate of shell right plate and shell right plate arranged for interval, the left end edge part of shell upper plate and shell
The upper edge of left plate is spirally connected, and the right end edge part of shell upper plate and the upper edge of shell right plate are spirally connected, outside
The left end edge part of shell lower plate and the lower edge section of shell left plate are spirally connected, the right end edge part of shell lower plate and shell
The lower edge section of right plate is spirally connected, and the inside of diaphragm shell is formed by the left of shell upper plate, shell lower plate, shell
Plate, shell right plate enclose shell accommodating cavity made of dress jointly；It is in be vertically arranged and distinguish that the front end of diaphragm shell, which is installed with,
The case nose flange being spirally connected with shell upper plate, shell lower plate, shell left plate, shell right plate, after diaphragm shell
End is installed with the outer casing back method being spirally connected respectively with shell upper plate, shell lower plate, shell left plate, shell right plate
It is blue；
In the shell accommodating cavity of diaphragm shell embedded in be vertically arranged and be respectively perpendicular to shell upper plate, shell lower plate,
The lower edge section of the apertured substrate of shell left plate, shell right plate, apertured substrate is screwed with left and right face and arranged for interval
Left side connecting fin plate, right side connecting fin plate, left side connecting fin plate is located at the left end side of right side connecting fin plate, left side connecting fin
Spiral shell loads the upper surface for being fixed in shell lower plate respectively for plate, right side connecting fin plate；The centre position of apertured substrate offers front and back
Completely through substrate through-hole, inlay card has the boron carbide square tube in hollow tubular, the rear end face of boron carbide square tube in substrate through-hole
It is concordant with the rear surface of apertured substrate；
It is installed with longitudinal blade assembly, lateral blade assembly in the rear end side of apertured substrate in the shell accommodating cavity of diaphragm shell,
Lateral blade assembly is located at the rear end side of longitudinal blade assembly；Longitudinal blade assembly includes there are two left and right arranged for interval and by electricity
Machine drive and synchronous backward movement longitudinal boron carbide board, it is each longitudinal direction boron carbide board respectively be in be vertically arranged, apertured substrate it is upper
End face is screwed with along the horizontal-extending upper end guide rail of left and right directions, and the lower face of apertured substrate is in left side connecting fin plate and right side
It is screwed between connecting fin plate along the horizontal-extending lowermost guide rail of left and right directions, the front surface of each longitudinal direction boron carbide board distinguishes spiral shell
It is extended respectively on corresponding longitudinal boron carbide board equipped with the upper end in the longitudinally connected plate being vertically arranged, each longitudinally connected plate
The lower end of end side, each longitudinally connected plate extends respectively to corresponding longitudinal boron carbide board lower end side, each longitudinal direction boron carbide board
Upper end is screwed with horizontal-extending upper end sliding block mounting plate facing forward respectively, and each upper end sliding block mounting plate is screwed with respectively and upper end
The matched upper end sliding block of guide rail；The lower end of each longitudinal direction boron carbide board is screwed with horizontal-extending lower end sliding block peace forward respectively
Loading board, each lower end sliding block mounting plate are screwed with and the matched lower end sliding block of lowermost guide rail respectively；
Lateral blade assembly includes being driven and the lateral boron carbide of synchronous backward movement there are two upper and lower arranged for interval and by motor
Plate, for each transverse direction boron carbide board respectively along left and right directions horizontal extension, the left side of apertured substrate is screwed with a vertically extending left side
Guide rail, the right side of apertured substrate is held to be screwed with vertically extending right end guide rail, the front surface of each transverse direction boron carbide board distinguishes spiral shell
Corresponding transverse direction is extended respectively to equipped with the left part along the horizontal-extending cross connecting plate of left and right directions, each cross connecting plate
The right part of boron carbide board left end side, each cross connecting plate extends respectively to corresponding lateral boron carbide board right end side, each transverse direction
The left part of boron carbide board is screwed with horizontal-extending left end sliding block mounting plate facing forward respectively, and each left end sliding block mounting plate distinguishes spiral shell
Equipped with the matched left end sliding block of left end guide rail；The right part of each transverse direction boron carbide board is screwed with horizontal-extending forward respectively
Right end sliding block mounting plate, each right end sliding block mounting plate are screwed with and the matched right end sliding block of right end guide rail respectively；
Boron carbide square tube, each longitudinal boron carbide board and each lateral boron carbide board are respectively the boron carbide of F20-F100 by granularity
It is mixed and condensed in epoxy adhesive, the mixed proportion of boron carbide and epoxy adhesive is 4：1.
Wherein, the depth of parallelism of two longitudinal boron carbide boards and the depth of parallelism difference of two lateral boron carbide boards
It it is 10 μm, the verticality of longitudinal boron carbide board and lateral boron carbide board is 10 μm.
Wherein, the size for the rectangular opening being made of two longitudinal boron carbide boards, two lateral boron carbide boards
It is required that as follows：Maximum open size is 30mm × 30mm, and minimum open dimension is 0.5mm × 0.5mm.
Beneficial effects of the present invention are：Four knife diaphragms of a kind of adjustable neutron flow of the present invention comprising have
Diaphragm shell, diaphragm shell include respectively in the shell upper plate of horizontal cross arrangement, shell lower plate and respectively in perpendicular
Shell left plate, shell right plate to arrangement, shell upper plate be located at the surface of shell lower plate and shell upper plate with
Shell lower plate arranged for interval, shell left plate are located at the left end side of shell right plate and between shell left plate and shell right plates
Every arrangement, the left end edge part of shell upper plate and the upper edge of shell left plate are spirally connected, the right end side of shell upper plate
Edge and the upper edge of shell right plate are spirally connected, the lower edge of the left end edge part and shell left plate of shell lower plate
Portion is spirally connected, and the right end edge part of shell lower plate and the lower edge section of shell right plate are spirally connected, the inside molding of diaphragm shell
There is shell accommodating cavity made of enclosing dress jointly by shell upper plate, shell lower plate, shell left plate, shell right plate；Diaphragm
The front end of shell be installed in be vertically arranged and respectively with shell upper plate, shell lower plate, shell left plate, on the right side of shell
The case nose flange that plate is spirally connected, the rear end of diaphragm shell are installed with left with shell upper plate, shell lower plate, shell respectively
The outer casing back flange that side plate, shell right plate are spirally connected；Be embedded in the shell accommodating cavity of diaphragm shell is in be vertically arranged and divide
Not perpendicular to shell upper plate, the apertured substrate of shell lower plate, shell left plate, shell right plate, the lower end of apertured substrate
Edge part is screwed with left and right face and spaced apart left side connecting fin plate, right side connecting fin plate, and left side connecting fin plate is located at the right side
The left end side of side connecting fin plate, spiral shell loads the upper surface for being fixed in shell lower plate respectively for left side connecting fin plate, right side connecting fin plate；
The centre position of apertured substrate offer it is front and back completely through substrate through-hole, inlay card has the carbon in hollow tubular in substrate through-hole
Change boron square tube, the rear end face of boron carbide square tube is concordant with the rear surface of apertured substrate；In light in the shell accommodating cavity of diaphragm shell
The rear end side of late substrate is installed with longitudinal blade assembly, lateral blade assembly, and lateral blade assembly is located at longitudinal blade assembly
Rear end side；Longitudinal blade assembly includes there are two left and right arranged for interval and longitudinal carbonization of synchronous backward movement by motor driving
Boron plate, each longitudinal direction boron carbide board are in be vertically arranged respectively, and the upper surface of apertured substrate is screwed with along left and right directions horizontal extension
Upper end guide rail, the lower face of apertured substrate is screwed between left side connecting fin plate and right side connecting fin plate along left and right directions
The front surface of horizontal-extending lowermost guide rail, each longitudinal direction boron carbide board is screwed in the longitudinally connected plate being vertically arranged, respectively respectively
The upper end of longitudinally connected plate extends respectively to corresponding longitudinal boron carbide board upper end side, the lower end difference of each longitudinally connected plate
Extend to corresponding longitudinal boron carbide board lower end side, the upper end of each longitudinal direction boron carbide board is screwed with horizontal-extending forward respectively
Upper end sliding block mounting plate, each upper end sliding block mounting plate are screwed with and the matched upper end sliding block of upper end guide rail respectively；Each longitudinal direction carbon
The lower end for changing boron plate is screwed with horizontal-extending lower end sliding block mounting plate facing forward, each lower end sliding block mounting plate difference spiral shell dress respectively
Have and the matched lower end sliding block of lowermost guide rail；Lateral blade assembly include there are two upper and lower arranged for interval and by motor driving and
The lateral boron carbide board of synchronous backward movement, each transverse direction boron carbide board respectively along left and right directions horizontal extension, apertured substrate
Left side is screwed with vertically extending left end guide rail, and the right side of apertured substrate is screwed with vertically extending right end guide rail, each cross
It is screwed with respectively along the horizontal-extending cross connecting plate of left and right directions, a left side for each cross connecting plate to the front surface of boron carbide board
End extends respectively to corresponding lateral boron carbide board left end side, and the right part of each cross connecting plate extends respectively to corresponding cross
To boron carbide board right end side, the left part of each transverse direction boron carbide board is screwed with horizontal-extending left end sliding block installation forward respectively
Plate, each left end sliding block mounting plate are screwed with and the matched left end sliding block of left end guide rail respectively；The right end of each transverse direction boron carbide board
Portion is screwed with horizontal-extending right end sliding block mounting plate facing forward respectively, and each right end sliding block mounting plate is screwed with and right end guide rail respectively
Matched right end sliding block；Boron carbide square tube, each longitudinal boron carbide board and each lateral boron carbide board are respectively by granularity
The boron carbide of F20-F100 is mixed and condensed in epoxy adhesive, the mixed proportion of boron carbide and epoxy adhesive
It is 4：1.By said structure design, the present invention has the advantages that novel in structural design, controllability are strong, and can be effectively right
Neutron flow is adjusted.
Description of the drawings
The present invention is further detailed below with attached drawing, but the embodiment in attached drawing is not constituted to this hair
Bright any restrictions.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram at another visual angle of the present invention.
Fig. 3 is the structural schematic diagram of the diaphragm part of the present invention.
Fig. 4 is the structural schematic diagram at another visual angle in diaphragm part of the present invention.
Fig. 5 is the structural schematic diagram at the another visual angle in diaphragm part of the present invention.
Include in Fig. 1 to Fig. 5：
1 --- diaphragm shell 11 --- shell upper plate
12 --- shell lower plate 13 --- shell left plates
14 --- shell right plate 15 --- shell accommodating cavities
16 --- case nose flange 17 --- outer casing back flanges
2 --- apertured substrate 31 --- left side connecting fin plates
32 --- right side connecting fin plate 4 --- boron carbide square tubes
5 --- longitudinal blade assembly 51 --- longitudinal boron carbide boards
521 --- upper end guide rail 522 --- lowermost guide rails
53 --- longitudinally connected plate 541 --- upper end sliding block mounting plates
542 --- lower end sliding block mounting plate 551 --- upper end sliding blocks
552 --- lower end sliding block 6 --- lateral blade assemblies
61 --- lateral boron carbide board 621 --- left end guide rails
622 --- right end guide rail 63 --- cross connecting plates
641 --- left end sliding block mounting plate 642 --- right end sliding block mounting plates
651 --- left end sliding block 652 --- right end sliding blocks.
Specific implementation mode
With reference to specific embodiment, the present invention will be described.
As shown in Figures 1 to 5, a kind of four knife diaphragms of adjustable neutron flow, include diaphragm shell 1, diaphragm shell 1
Include respectively in the shell upper plate 11 of horizontal cross arrangement, shell lower plate 12 and left in the shell being vertically arranged respectively
Side plate 13, shell right plate 14, shell upper plate 11 are located at the surface of shell lower plate 12 and shell upper plate 11 and shell
12 arranged for interval of lower plate, shell left plate 13 are located at the left end side of shell right plate 14 and on the right side of shell left plate 13 and shells
14 arranged for interval of plate, the left end edge part of shell upper plate 11 and the upper edge of shell left plate 13 are spirally connected, are pushed up on shell
The right end edge part of plate 11 and the upper edge of shell right plate 14 are spirally connected, the left end edge part of shell lower plate 12 and shell
The lower edge section of left plate 13 is spirally connected, the right end edge part of shell lower plate 12 and the lower edge section spiral shell of shell right plate 14
It connects, the inside of diaphragm shell 1 is formed by shell upper plate 11, shell lower plate 12, shell left plate 13, shell right plate 14
Shell accommodating cavity 15 made of dress is enclosed jointly；It is in be vertically arranged and pushed up respectively on shell that the front end of diaphragm shell 1, which is installed with,
The case nose flange 16 that plate 11, shell lower plate 12, shell left plate 13, shell right plate 14 are spirally connected, after diaphragm shell 1
End is installed with the shell being spirally connected respectively with shell upper plate 11, shell lower plate 12, shell left plate 13, shell right plate 14
End flanges 17 afterwards.
Further, it is in be vertically arranged and be respectively perpendicular on shell to be embedded in the shell accommodating cavity 15 of diaphragm shell 1
The apertured substrate 2 of top plate 11, shell lower plate 12, shell left plate 13, shell right plate 14, the lower edge of apertured substrate 2
Portion is screwed with left and right face and spaced apart left side connecting fin plate 31, right side connecting fin plate 32, left side connecting fin plate 31 are located at
The left end side of right side connecting fin plate 32, spiral shell loads and is fixed in shell lower plate respectively for left side connecting fin plate 31, right side connecting fin plate 32
12 upper surface；The centre position of apertured substrate 2 offer it is front and back completely through substrate through-hole, inlay card, which has, in substrate through-hole is in
The rear end face of the boron carbide square tube 4 of hollow tubular, boron carbide square tube 4 is concordant with the rear surface of apertured substrate 2.
Further, the rear end side in the shell accommodating cavity 15 of diaphragm shell 1 in apertured substrate 2 is installed with longitudinal blade
Component 5, lateral blade assembly 6, lateral blade assembly 6 are located at the rear end side of longitudinal blade assembly 5；Longitudinal blade assembly 5 includes
It is driven and longitudinal boron carbide board 51 of synchronous backward movement there are two left and right arranged for interval and by motor, each longitudinal direction boron carbide board 51
It is in be vertically arranged respectively, the upper surface of apertured substrate 2 is screwed with along the horizontal-extending upper end guide rail 521 of left and right directions, diaphragm
The lower face of substrate 2 is screwed with horizontal-extending along left and right directions between left side connecting fin plate 31 and right side connecting fin plate 32
The front surface of lowermost guide rail 522, each longitudinal direction boron carbide board 51 is screwed with respectively in the longitudinally connected plate 53 being vertically arranged, each longitudinal direction
The upper end of connecting plate 53 extends respectively to 51 upper end side of corresponding longitudinal boron carbide board, the end portion of each longitudinally connected plate 53
51 lower end side of corresponding longitudinal boron carbide board is not extended to, and the upper end of each longitudinal direction boron carbide board 51 is screwed with level facing forward respectively
The upper end sliding block mounting plate 541 of extension, each upper end sliding block mounting plate 541 be screwed with respectively with upper end guide rail 521 it is matched on
Hold sliding block 551；The lower end of each longitudinal direction boron carbide board 51 is screwed with horizontal-extending lower end sliding block mounting plate 542 facing forward respectively,
Each lower end sliding block mounting plate 542 is screwed with and 522 matched lower end sliding block 552 of lowermost guide rail respectively.
In addition, lateral blade assembly 6 include there are two upper and lower arranged for interval and by motor driving and what synchronous backward moved
Lateral boron carbide board 61, each transverse direction boron carbide board 61 is respectively along left and right directions horizontal extension, the left side spiral shell dress of apertured substrate 2
There are vertically extending left end guide rail 621, the right side of apertured substrate 2 to be screwed with vertically extending right end guide rail 622, each transverse direction carbon
The front surface for changing boron plate 61 is screwed with respectively along the horizontal-extending cross connecting plate 63 of left and right directions, each cross connecting plate 63
Left part extends respectively to 61 left end side of corresponding lateral boron carbide board, and the right part of each cross connecting plate 63 extends respectively to phase
The left part of the 61 right end side of lateral boron carbide board answered, each transverse direction boron carbide board 61 is screwed with horizontal-extending left end facing forward respectively
Sliding block mounting plate 641, each left end sliding block mounting plate 641 are screwed with and 621 matched left end sliding block 651 of left end guide rail respectively；
The right part of each transverse direction boron carbide board 61 is screwed with horizontal-extending right end sliding block mounting plate 642 facing forward, each right end sliding block respectively
Mounting plate 642 is screwed with and 622 matched right end sliding block 652 of right end guide rail respectively.
Wherein, boron carbide square tube 4, each longitudinal boron carbide board 51 and each lateral boron carbide board 61 are respectively by granularity
The boron carbide of F20-F100 is mixed and condensed in epoxy adhesive, the mixed proportion of boron carbide and epoxy adhesive
It is 4：1.
It should further be noted that the depth of parallelism of two longitudinal boron carbide boards 51 and the depth of parallelism of two lateral boron carbide boards 61
Respectively 10 μm, the verticality of longitudinal boron carbide board 51 and lateral boron carbide board 61 is 10 μm.
Also it is exactly, by the size for the rectangular opening that two longitudinal boron carbide boards, 51, two transverse direction boron carbide boards 61 are formed
It is required that as follows：Maximum open size is 30mm × 30mm, and minimum open dimension is 0.5mm × 0.5mm.
In the course of work of the present invention, two longitudinal synchronous backward movements under the driving of motor of boron carbide boards 51, two
A transverse direction boron carbide board 61 synchronous backward movement under the driving of motor；Wherein, by upper end guide rail 521 and upper end sliding block 551
Two longitudinal direction boron carbide boards 51 of guideway pair that the guideway and lowermost guide rail 522 formed is formed with lower end sliding block 552
Left and right activity-oriented, guideway and right end guide rail 622 and the right end be made of left end guide rail 621 and left end sliding block 651 are slided
Two 61 up and down guiding of lateral boron carbide board of guideway pair that block 652 is formed；When two longitudinal boron carbide boards 51 are drawn close
And two lateral boron carbide boards 61 are when drawing close, for neutron by neutron current beam hole become smaller, neutron current amount becomes smaller at this time；When two
When a longitudinal direction boron carbide board 51 separates and two lateral boron carbide boards 61 separate, for neutron by neutron current beam hole become larger,
Neutron current amount becomes larger at this time.
It is emphasized that the present invention adjusts neutron uninterrupted by Electronic control mode, on the one hand can subtract significantly
The debug time of few field technician, on the other hand can be effectively reduced is influenced by neutron irradiation.
Also it is exactly that boron carbide material preparation is respectively adopted in longitudinal boron carbide board 51 of the invention, lateral boron carbide board 61
It forms, and longitudinal boron carbide board 51, lateral boron carbide board 61 can play the function of absorbing and do not need neutron.
Based on the above situation, it may be appreciated that by said structure design, the present invention has novel in structural design, controllability strong
Advantage, and effectively neutron current amount can be adjusted.
The above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (3)
1. a kind of four knife diaphragms of adjustable neutron flow, it is characterised in that：It include diaphragm shell（1）, diaphragm shell（1）Packet
It includes respectively in the shell upper plate of horizontal cross arrangement（11）, shell lower plate（12）And respectively in the shell being vertically arranged
Left plate（13）, shell right plate（14）, shell upper plate（11）Positioned at shell lower plate（12）Surface and shell on push up
Plate（11）With shell lower plate（12）Arranged for interval, shell left plate（13）Positioned at shell right plate（14）Left end side and shell
Left plate（13）With shell right plate（14）Arranged for interval, shell upper plate（11）Left end edge part and shell left plate（13）
Upper edge be spirally connected, shell upper plate（11）Right end edge part and shell right plate（14）Upper edge be spirally connected,
Shell lower plate（12）Left end edge part and shell left plate（13）Lower edge section be spirally connected, shell lower plate（12）The right side
End edge edge and shell right plate（14）Lower edge section be spirally connected, diaphragm shell（1）Inside form by shell upper plate
（11）, shell lower plate（12）, shell left plate（13）, shell right plate（14）Shell accommodating cavity made of dress is enclosed jointly
（15）；Diaphragm shell（1）Front end be installed in be vertically arranged and respectively with shell upper plate（11）, shell lower plate
（12）, shell left plate（13）, shell right plate（14）The case nose flange being spirally connected（16）, diaphragm shell（1）Rear end
Be installed with respectively with shell upper plate（11）, shell lower plate（12）, shell left plate（13）, shell right plate（14）It is spirally connected
Outer casing back flange（17）；
Diaphragm shell（1）Shell accommodating cavity（15）Interior be embedded with is in be vertically arranged and be respectively perpendicular to shell upper plate（11）,
Shell lower plate（12）, shell left plate（13）, shell right plate（14）Apertured substrate（2）, apertured substrate（2）Lower end edge
Edge is screwed with left and right face and spaced apart left side connecting fin plate（31）, right side connecting fin plate（32）, left side connecting fin plate
（31）Positioned at right side connecting fin plate（32）Left end side, left side connecting fin plate（31）, right side connecting fin plate（32）Spiral shell loads respectively
It is fixed in shell lower plate（12）Upper surface；Apertured substrate（2）Centre position offer it is front and back completely through substrate through-hole,
Inlay card has the boron carbide square tube in hollow tubular in substrate through-hole（4）, boron carbide square tube（4）Rear end face and apertured substrate（2）
Rear surface it is concordant；
Diaphragm shell（1）Shell accommodating cavity（15）It is interior in apertured substrate（2）Rear end side be installed with longitudinal blade assembly（5）,
Lateral blade assembly（6）, lateral blade assembly（6）Positioned at longitudinal blade assembly（5）Rear end side；Longitudinal blade assembly（5）Packet
It includes there are two left and right arranged for interval and is driven and longitudinal boron carbide board of synchronous backward movement by motor（51）, each longitudinal direction boron carbide
Plate（51）It is in be vertically arranged respectively, apertured substrate（2）Upper surface be screwed with along the horizontal-extending upper end guide rail of left and right directions
（521）, apertured substrate（2）Lower face in left side connecting fin plate（31）With right side connecting fin plate（32）Between be screwed with along a left side
The horizontal-extending lowermost guide rail of right direction（522）, each longitudinal direction boron carbide board（51）Front surface be screwed with respectively in being vertically arranged
Longitudinally connected plate（53）, each longitudinally connected plate（53）Upper end extend respectively to corresponding longitudinal boron carbide board（51）Upper end
Side, each longitudinally connected plate（53）Lower end extend respectively to corresponding longitudinal boron carbide board（51）Lower end side, each longitudinal carbonization
Boron plate（51）Upper end be screwed with horizontal-extending upper end sliding block mounting plate facing forward respectively（541）, each upper end sliding block mounting plate
（541）It is screwed with respectively and upper end guide rail（521）Matched upper end sliding block（551）；Each longitudinal direction boron carbide board（51）Lower end
Portion is screwed with horizontal-extending lower end sliding block mounting plate facing forward respectively（542）, each lower end sliding block mounting plate（542）It is screwed with respectively
With lowermost guide rail（522）Matched lower end sliding block（552）；
Lateral blade assembly（6）It include there are two upper and lower arranged for interval and the lateral carbonization of synchronous backward movement by motor driving
Boron plate（61）, each transverse direction boron carbide board（61）Respectively along left and right directions horizontal extension, apertured substrate（2）Left side be screwed with
Vertically extending left end guide rail（621）, apertured substrate（2）Right side be screwed with vertically extending right end guide rail（622）, each cross
To boron carbide board（61）Front surface be screwed with respectively along the horizontal-extending cross connecting plate of left and right directions（63）, each transverse direction connects
Fishplate bar（63）Left part extend respectively to corresponding lateral boron carbide board（61）Left end side, each cross connecting plate（63）Right end
Portion extends respectively to corresponding lateral boron carbide board（61）Right end side, each transverse direction boron carbide board（61）Left part be screwed with respectively
Horizontal-extending left end sliding block mounting plate facing forward（641）, each left end sliding block mounting plate（641）It is screwed with respectively and left end guide rail
（621）Matched left end sliding block（651）；Each transverse direction boron carbide board（61）Right part be screwed with respectively forward it is horizontal-extending
Right end sliding block mounting plate（642）, each right end sliding block mounting plate（642）It is screwed with respectively and right end guide rail（622）The matched right side
Hold sliding block（652）；
Boron carbide square tube（4）, each longitudinal boron carbide board（51）And each lateral boron carbide board（61）It is respectively F20- by granularity
The boron carbide of F100 is mixed and condensed in epoxy adhesive, and the mixed proportion of boron carbide and epoxy adhesive is 4：
1。
2. a kind of four knife diaphragms of adjustable neutron flow according to claim 1, it is characterised in that：Two longitudinal directions
Boron carbide board（51）The depth of parallelism and two lateral boron carbide boards（61）The depth of parallelism be respectively 10 μm, longitudinal boron carbide
Plate（51）With lateral boron carbide board（61）Verticality be 10 μm.
3. a kind of four knife diaphragms of adjustable neutron flow according to claim 1, it is characterised in that：It is described vertical by two
To boron carbide board（51）, two lateral boron carbide boards（61）The size of the rectangular opening formed requires as follows：Maximum open
Size is 30mm × 30mm, and minimum open dimension is 0.5mm × 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344839.5A CN108806818A (en) | 2018-04-17 | 2018-04-17 | A kind of four knife diaphragms of adjustable neutron flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344839.5A CN108806818A (en) | 2018-04-17 | 2018-04-17 | A kind of four knife diaphragms of adjustable neutron flow |
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| CN101532876A (en) * | 2009-04-14 | 2009-09-16 | 中国科学技术大学 | Micro accurate slit arrangement with adjustable slit width |
| CN102332318A (en) * | 2011-07-18 | 2012-01-25 | 中国原子能科学研究院 | First collimator adjusting device of neutron texture diffractometer |
| CN103162825A (en) * | 2013-03-26 | 2013-06-19 | 中国科学院高能物理研究所 | Slit device and four-blade slit |
| US20140270069A1 (en) * | 2013-03-14 | 2014-09-18 | Varian Medical Systems, Inc. | Real-time moving collimators made with x-ray filtering material |
| CN104310400A (en) * | 2014-10-09 | 2015-01-28 | 东莞理工学院 | Boron carbide neutron absorber |
| US20150036787A1 (en) * | 2013-08-05 | 2015-02-05 | University-Industry Foundation (Uif) | Collimator and inspecting system using the same |
| CN206259192U (en) * | 2016-11-03 | 2017-06-16 | 东莞中子科学中心 | Neutron howitzer |
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| CN101532876A (en) * | 2009-04-14 | 2009-09-16 | 中国科学技术大学 | Micro accurate slit arrangement with adjustable slit width |
| CN102332318A (en) * | 2011-07-18 | 2012-01-25 | 中国原子能科学研究院 | First collimator adjusting device of neutron texture diffractometer |
| US20140270069A1 (en) * | 2013-03-14 | 2014-09-18 | Varian Medical Systems, Inc. | Real-time moving collimators made with x-ray filtering material |
| CN103162825A (en) * | 2013-03-26 | 2013-06-19 | 中国科学院高能物理研究所 | Slit device and four-blade slit |
| US20150036787A1 (en) * | 2013-08-05 | 2015-02-05 | University-Industry Foundation (Uif) | Collimator and inspecting system using the same |
| CN104310400A (en) * | 2014-10-09 | 2015-01-28 | 东莞理工学院 | Boron carbide neutron absorber |
| CN206259192U (en) * | 2016-11-03 | 2017-06-16 | 东莞中子科学中心 | Neutron howitzer |
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