CN109496051A - It is a kind of for increasing the slowing down device of low number of neutrons - Google Patents
It is a kind of for increasing the slowing down device of low number of neutrons Download PDFInfo
- Publication number
- CN109496051A CN109496051A CN201811574811.7A CN201811574811A CN109496051A CN 109496051 A CN109496051 A CN 109496051A CN 201811574811 A CN201811574811 A CN 201811574811A CN 109496051 A CN109496051 A CN 109496051A
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- Prior art keywords
- neutron
- slowing down
- neutrons
- pipe
- moderator
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- 230000001965 increasing effect Effects 0.000 title claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 38
- 230000006698 induction Effects 0.000 claims abstract description 29
- 230000001684 chronic effect Effects 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- H05H3/00—Production or acceleration of neutral particle beams, e.g. molecular or atomic beams
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Particle Accelerators (AREA)
Abstract
The invention discloses a kind of for increasing the slowing down device of low number of neutrons, charge particle emission source including emitting charged particle, the first accelerator and moderation of neutrons device for accelerating charged particle, it further include the target for being connected to the generation neutron that the first accelerator just penetrates direction induction pipe and for being used cooperatively with induction pipe for inducing charged particle to change, the induction pipe end is protruded into moderation of neutrons device and is vertically arranged with target.Invention increases from the low speed neutron quantity taken in slowing down device and advantageously reduce the high energy and high speed neutron and charged particle adulterated in low speed neutron beam.
Description
Technical field
The present invention relates to a kind of moderation of neutrons devices and more particularly to a kind of slowing down device that can increase low number of neutrons.
Background technique
Currently, preparing neutron by charged particle and have applied to the fields such as medical treatment and camera shooting by neutron wide
Development space and prospect are especially more prominent to the application aspect of low neutron.Mostly high energy and high speed when neutron is prepared out
Neutron, it is therefore desirable to which fast neutron is scattered that collision lowers its speed, this process is also referred to as the slowing down of neutron.
What is be mostly used in the application of neutron is low speed neutron, thus the preparation of low speed neutron, quantity number, in low speed
The quality for the low speed neutron beam that son is formed is most important to subsequent application.But existing neutron preparation facilities its can be filled from slowing down
Set the high energy and high speed neutron and charged particle ratio that the low speed neutron quantity taken is few and adulterates in the low speed neutron beam taken
Example is big, and the quality for the low speed neutron beam that strong influence is taken influences subsequent applications.Therefore, it is necessary to the prior art make into
One step is improved.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of for increasing the slowing down device of low number of neutrons, specifically
For be achieved through the following technical solutions:
It is of the present invention a kind of for increasing the slowing down device of low number of neutrons, the charged particle hair including emitting charged particle
Source, the first accelerator and moderation of neutrons device for accelerating charged particle are penetrated, further includes being connected to the first accelerator for luring
Conduction band charged particle changes the target for just penetrating direction induction pipe and the generation neutron for being used cooperatively with induction pipe, the induction pipe end
End is protruded into moderation of neutrons device and is vertically arranged with target.
Further, the induction pipe includes output internal layer, matrix middle layer and shield external layer.
Further, the moderation of neutrons device includes for collecting and generating the neutron collecting chamber of neutron, be set to neutron
Collecting chamber inside slowing down layer is connected to being used to absorb slowing down fast neutron and collecting the moderator of low speed neutron for slowing down layer lower end
Pipe.
Further, the moderator pipe includes basal body pipe, the moderator mandrel being overlapped with basal body pipe axis and is set in base
Moderator foldable layer between body inside pipe wall moderator mandrel outer wall is provided with sharp portion on foldable layer.
Further, the sharp portion is staggered to go out on the foldable layer and tip of sharp portion and contact with moderator mandrel.
Further, the induction pipe end is additionally provided with the linear accelerator for linear accelerating charged particle.
It further, further include being used to collect the chronic neutron collecting pipe of chronic neutron set on moderator pipe end and being connected to
Neutron collects pipe end and is provided with collimator apparatus.
Further, it is provided between the slowing down layer and moderator pipe for absorbing the band electrochondria being mixed into low speed neutron
The electrode plate of son.
Beneficial effects of the present invention: by the induction pipe, just penetrate charged particle is irradiated in target to the present invention, will be traditional
Charged particle cover target is transformed into dispersion many places and repeatedly irradiates target, and therefore, the present invention greatly improves neutron generation
Quantity, through the more low speed neutron taken can be prepared in high energy and high speed through slowing down device.Have in of the invention other
Beneficial effect will be further described in conjunction with embodiment in detail below.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is schematic structural view of the invention；
Fig. 2 is present invention induction pipe cross-sectional view；
Fig. 3 is moderator pipe cross-sectional view.
Specific embodiment
It is as shown in the figure: of the present invention a kind of for increasing the slowing down device of low number of neutrons, including transmitting band electrochondria
The charge particle emission source (not identified in figure) of son, the first accelerator 1 and moderation of neutrons device 2 for accelerating charged particle,
It further include being connected to the first accelerator 1 just to penetrate direction induction pipe 3 and for cooperating with induction pipe 3 for inducing charged particle to change
The target 4 of the generation neutron used, the induction pipe end are protruded into moderation of neutrons device 2 and are vertically arranged with target 4.The electrification
Emission source can preferentially select cyclotron with particle gun, first accelerator 1, and the target 4 is by beryllium (Be), lithium
(Li) or containing they compound formed solid platelets component, and generate high energy and high speed neutron component.This is existing skill
Details are not described herein for art.
In the present embodiment, induction pipe 3 includes output internal layer 301, matrix middle layer 302 and shield external layer 303.Described matrix
Middle layer 302 is the structural stability for inducing 3 skeleton of pipe to keep induction pipe 3, and the output internal layer 301 is uncharged insulation
Layer.In order to reduce induction pipe and induction manage in charged particle influence each other in order to avoid generating unnecessary interference, reducing with electrochondria
Shield external layer 303 is arranged outside layer 302 in the base for sub- speed.Therefore, above-mentioned setting can guarantee the charged particle in induction pipe 3
Kinetic energy projects the validity for guaranteeing charged particle irradiation target 4, i.e. guarantee charged particle with kinetic energy charged particle from induction pipe 3
Irradiation target 4 can have fast neutron to generate.
In the present embodiment, the moderation of neutrons device 2 include for collect and generate the neutron collecting chamber 201 of neutron,
Be set to the slowing down layer 202 inside neutron collecting chamber 201, be connected to 202 lower end of slowing down layer for absorbing fast neutron and collection
The moderator pipe 203 of low speed neutron.Further, the slowing down layer 202 includes having the main part 2021 of polyethylene and setting
Lug boss 2022 arranged in a crossed manner on main part 2021 is placed in constitute.The target 4 is set in collecting chamber 201 and is provided with more
It is a, it is irradiated in target 4 from the charged particle penetrated at the beginning of induction 3 end of pipe, multiple induction pipes 3 are correspondingly arranged with multiple targets 4.The induction
Pipe 3 can be by charged particle beam " shunting ", and the charged particle beam irradiation being split is formd in target 4 in many places of same time
Multiple spot charged particle beam irradiation is in target 4 the phenomenon that, it can be seen that, target 4 is increased by band relative to traditional single place irradiation target 4
The effective area of electrochondria beamlet irradiation, therefore, it is low speed that the neutron collecting chamber 201, which can generate more high energy and high speed neutrons,
The slowing down of neutron saves sufficient amount of neutron.Further after above-mentioned sufficient amount of neutron generates, first pass through described
Slowing down layer 202, then high energy and high speed neutron is by becoming low energy low speed neutron with 2022 scattering collision of lug boss and absorption.
Since the result has only stayed one outlet to low energy low speed neutron, low energy low speed neutron eventually enters into moderator pipe 203
In.In order to avoid minimal amount of charged particle is blended in low speed neutron, it is arranged between slowing down layer and moderator pipe 203 useful
In the electrode plate 7 for absorbing charged particle.There are gaps with 201 inner wall of neutron collecting chamber for further slowing down layer 202, due to structure
The reason of inevitably there is part rapid neutron to be mixed in low speed low energy neutron so that the quality of low speed low energy neutron beam declines, then slowly
Agent pipe 203 is just able to solve this problem.The moderator pipe 203 can use following specific structures, naturally it is also possible to adopt
With other structures in the prior art.The present invention will according to the present invention 203 specific structure of moderator pipe illustrate it is above-mentioned
Issue-resolution.
In the present embodiment, the moderator core that the moderator pipe 203 includes basal body pipe 2031, is overlapped with basal body pipe axis
Axis 2032 and the moderator foldable layer 2033 being set between 2031 inner wall moderator mandrel of basal body pipe, 2032 outer wall, on foldable layer
It is provided with sharp portion 2034.The low speed low energy neutron enters moderator pipe 203 together with rapid neutron, then moderator folds
The rapid neutron of 2034 pairs of sharp portion entrance of layer is further absorbed or slowing down, greatly reduces in low speed neutron quickly
The containing ratio of neutron improves low speed neutron quality.
In the present embodiment, the sharp portion 2034 is staggered on moderator foldable layer 2033 and sharp portion 2034
Tip goes out to contact with moderator mandrel 2032.The tip of sharp portion 2034 goes out contacted with moderator mandrel 2032 and avoid structure between
The generation of gap, enables rapid neutron to come into full contact with moderator, can fully absorb and be mixed into slowing down low speed neutron
Rapid neutron.Compensating for above-mentioned slowing down layer 202 simultaneously, there are gaps to low speed neutron of the present invention with 201 inner wall of neutron collecting chamber
Preparation generate adverse effect.
In the present embodiment, induction 3 end of pipe is additionally provided with the linear accelerator for linear accelerating charged particle
5.It is inducing pipe 3 too long or other situations, is inducing the speed of charged particle in pipe 3 it is possible that kinetic energy deficiency causes band electrochondria
It influences to generate the quantity of neutron after son irradiation target 4, or even neutron cannot be generated.In order to guarantee the electrification for inducing 3 end of pipe just to penetrate
Particle has certain kinetic energy, can be accelerated using linear accelerator 5.
It in the present embodiment, further include the chronic neutron collection for being used to collect chronic neutron set on 203 end of moderator pipe
It pipe 203 and is connected to 203 end of neutron collecting pipe and is provided with for collimator apparatus 6.The collimator apparatus 6 can be the prior art
In any collimator, be conducive to make from moderator pipe along the predetermined neutron for extracting direction and emitting, this for the prior art herein not
It repeats again.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (8)
1. it is a kind of for increasing the slowing down device of low number of neutrons, including emitting the charge particle emission source of charged particle, being used for
Accelerate the first accelerator and moderation of neutrons device of charged particle, it is characterised in that: further include being connected to the first accelerator to be used for
Induction charged particle changes the target for just penetrating direction induction pipe and the generation neutron for being used cooperatively with induction pipe, the induction pipe
End is protruded into moderation of neutrons device and is vertically arranged with target.
2. according to claim 1 for increasing the slowing down device of low number of neutrons, it is characterised in that: the induction pipe packet
Include output internal layer, matrix middle layer and shield external layer.
3. according to claim 1 for increasing the slowing down device of low number of neutrons, it is characterised in that: the moderation of neutrons
Device includes for slowing down layer inside collecting and generate the neutron collecting chamber of neutron, being set to neutron collecting chamber, is connected to slowing down
Layer lower end is used to absorb slowing down fast neutron and collects the moderator pipe of low speed neutron.
4. according to claim 3 for increasing the slowing down device of low number of neutrons, it is characterised in that: the moderator pipe
Including basal body pipe, the moderator mandrel being overlapped with basal body pipe axis and it is set between matrix inside pipe wall moderator mandrel outer wall
Moderator foldable layer is provided with sharp portion on foldable layer.
5. according to claim 4 for increasing the slowing down device of low number of neutrons, it is characterised in that: the sharp portion is handed over
Mistake is set on foldable layer and the tip of sharp portion goes out to contact with moderator mandrel.
6. according to claim 1 or 2 for increasing the slowing down device of low number of neutrons, it is characterised in that: the induction
Pipe end is additionally provided with the linear accelerator for linear accelerating charged particle.
7. for increasing the slowing down device of low number of neutrons according to claim 3-4 any claim, feature exists
In: it further include being used to collect the chronic neutron collecting pipe of chronic neutron set on moderator pipe end and being connected to neutron collecting pipe end
End is provided with collimator apparatus.
8. for increasing the slowing down device of low number of neutrons according to claim 3-4 any claim, feature exists
In: the electrode plate for absorbing the charged particle being mixed into low speed neutron is provided between the slowing down layer and moderator pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574811.7A CN109496051A (en) | 2018-12-21 | 2018-12-21 | It is a kind of for increasing the slowing down device of low number of neutrons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574811.7A CN109496051A (en) | 2018-12-21 | 2018-12-21 | It is a kind of for increasing the slowing down device of low number of neutrons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109496051A true CN109496051A (en) | 2019-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811574811.7A Pending CN109496051A (en) | 2018-12-21 | 2018-12-21 | It is a kind of for increasing the slowing down device of low number of neutrons |
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Effective date of registration: 20191225 Address after: 523808 room 310, building 1, No. 8, South Industrial Road, Songshanhu Park, Dongguan City, Guangdong Province Applicant after: Guangdong Taiwei accelerator Co., Ltd Address before: 101149 Beijing Tongzhou Canal Core Area IV-07 Block Greenbelt Building, 22 Floors 21389 Applicant before: Beijing Zhongbaiyuan International Science and Technology Innovation Research Co., Ltd. |