CN107728187A - Using the gamma ray detection system of composite structure shell - Google Patents
Using the gamma ray detection system of composite structure shell Download PDFInfo
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- CN107728187A CN107728187A CN201710927140.7A CN201710927140A CN107728187A CN 107728187 A CN107728187 A CN 107728187A CN 201710927140 A CN201710927140 A CN 201710927140A CN 107728187 A CN107728187 A CN 107728187A
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- material layer
- gamma ray
- composite structure
- ray detection
- detection system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
- G01T1/023—Scintillation dose-rate meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses kind of a gamma ray detection system for use composite structure shell, including：Detection device, the detection device include housing, sensor, control PCB；And display terminal, APP softwares built in the display terminal；The detection device is connected with the APP softwares in display terminal with communication；Wherein described sensor includes radome, and it is arranged at scintillation crystal unit, pulse amplifier inside radome, the scintillation crystal unit is electrically connected with pulse amplifier, the pulse amplifier is electrically connected with control PCB, wherein the housing is the composite construction that thermoelectric material layer is formed with insulating barrier.Gamma ray detection system disclosed by the invention, the composite structure shell formed using thermoelectric material layer and insulating barrier, has spontaneous electrical function, can extend the cruising time of detection device.
Description
Technical field
The present invention relates to a kind of gamma ray detection system, more particularly to one kind to be formed using thermoelectric material layer and insulating barrier
Composite structure shell portable gamma ray detection system.
Background technology
Ionising radiation refers to all radiation general names that material can be caused to ionize, and its species is a lot, as high speed charged particle has α
Particle, β particles, proton, and uncharged particle have neutron, X ray, gamma-rays.Common ionising radiation includes：Hospital it is saturating
Instrument is penetrated, laboratory energy disperse spectroscopy, the mineral matter marble used in house decoration, industrial various radioactive sources, nuclear industry waste material, is received
The patient of radiotherapy, nuclear power station, and the ray from universe, above-described ionising radiation be primarily referred to as penetration power it is strong,
Endanger big neutron, X ray, gamma Rays.Ionising radiation can result in the damage of cell, particularly DNA damage, increase
Carcinogenic possibility, when damage occurs in sexual gland reproduction cell, then the hereditary information of mistake may be passed into offspring and cause something lost
Pass effect.Especially pregnant woman, children, old man are set with greater need for remote ionising radiation in daily life by ionising radiation detection
It is standby to avoid such radiation.
Ionising radiation detection instrument is based primarily upon three kinds of principles, and Geiger, scintillator count, semiconductor count.Geiger
The Geiger pipe volume of counter is larger, and needs the high voltage power supply for being additionally provided a several hectovolts or even upper kilovolt, real
This existing high voltage power supply needs to take larger space and has potential safety hazard, although the principle of geiger counter is ripe in a word,
But wearable portable ionizing-radiation detector is not suitable for it；Semiconductor counting is with high costs, is adapted in high-end energy spectrum analysis
Instrument uses.
The power supply mode of wearable portable gamma ray detection system is generally internal battery or external power supply, but
In the case of not having external power supply and internal battery not enough power supply, detection device is difficult to work on.
The content of the invention
In order to solve the above technical problems, the invention discloses a kind of gamma ray detection system using composite structure shell
System, including：Detection device, the detection device include housing, sensor, control PCB；And display terminal, the display is eventually
APP softwares built in end；The detection device is connected with the APP softwares in display terminal with communication；Wherein described biography
Sensor includes radome, and is arranged at scintillation crystal unit, pulse amplifier inside radome, the scintillation crystal unit
It is electrically connected with pulse amplifier, the pulse amplifier is electrically connected with control PCB, wherein the housing is thermoelectric material layer
The composite construction formed with insulating barrier.
Preferably, the first insulating barrier is set on the housing, first insulating barrier by housing be divided into the first housing with
Second housing, the first housing include the first oxide pyroelectric material layer, the second insulating barrier and the second oxide pyroelectric material layer, and
Second oxide pyroelectric material layer is provided with first electrode；Second housing includes the first alloy thermoelectric material layer, the 3rd insulating barrier
With the second alloy thermoelectric material layer, and the second alloy thermoelectric material layer is provided with second electrode, the first oxide pyroelectric material layer
It is connected with the first alloy thermoelectric material layer by conductive layer.
Preferably, the first oxide pyroelectric material layer and the second oxide pyroelectric material layer are formed in one structure,
The first alloy thermoelectric material layer and the second alloy thermoelectric material layer are formed in one structure.
Preferably, first insulating barrier, the second insulating barrier, the 3rd insulating barrier are silica.
Preferably, the first electrode, second electrode, conductive layer are conductive material, can be silver, gold, aluminium, nickel, lead,
Copper, graphite any one or its combination.
Preferably, the first electrode, second electrode electrically connect with control PCB respectively.
Preferably, the scintillation crystal unit is provided with light shield layer, and the light shield layer coats scintillation crystal, only retains flicker
One exiting surface of crystal；And photoelectric conversion unit, the photoelectric conversion unit couple setting with the exiting surface, and with institute
State pulse amplifier electric connection.
Preferably, the comparator being electrically connected with the pulse amplifier is provided with the control PCB.
Preferably, the charge pump being electrically connected with the pulse amplifier is provided with the control PCB.
Preferably, the communication can be ZigBee communication either Z-Wave communication or WiFi communication or
Bluetooth communication, the display terminal can be smart mobile phone either tablet personal computer or notebook personal computer or digital phases
Machine.
Gamma ray detection system disclosed by the invention using composite structure shell, using thermoelectric material layer and absolutely
The composite structure shell that edge layer is formed, has spontaneous electrical function, can extend the cruising time of detection device.
Brief description of the drawings
Fig. 1 is the gamma ray detection system schematic that the present invention uses composite structure shell；
Fig. 2 is the gamma ray detection systematic schematic diagram that the present invention uses composite structure shell；
Fig. 3 is scintillation crystal unit three-dimensional structural representation of the present invention；
Fig. 4 illustrates for scintillation crystal cell mesh of the present invention；
Fig. 5 is the front view of Fig. 4 neutral body structures；
Fig. 6 is Fig. 5 A-A ' sectional views；
Fig. 7 is the portable gamma ray detection equipment overall schematic of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that the limitation present invention.Term as used herein "and/or" includes one or more related
Listed Items arbitrary and all combination.
As shown in accompanying drawing 1 to 7, the invention discloses a kind of gamma ray detection system using composite structure shell, bag
Include：Detection device 100, the detection device include housing 3, sensor 110, control PCB120；And display terminal 200, institute
State APP softwares built in display terminal 200；The detection device 100 is with the APP softwares in display terminal 200 with side wireless communication
Formula connects；Wherein described sensor 110 includes radome 111, and is arranged at the scintillation crystal unit inside radome 111
130th, pulse amplifier 116, the scintillation crystal unit 130 are electrically connected with pulse amplifier 116, the pulse amplifier
116 are electrically connected with control PCB120.Wherein, the material of the radome 111 is alloy or metal with high magnetic permeability, compared with
Goodly, the alloy of the tool high magnetic permeability or metal can be non-oriented silicon steel sheet or ferrite, to reach shielding magnetostatic field
Effect.It should be noted that communication of the present invention can be ZigBee communications either Z-Wave communications or WiFi
Communication or Bluetooth communication, the display terminal 200 can be smart mobile phone either tablet personal computer or notebook personal computer or
Person's digital camera.
In addition, the inner side and outer side of radome 111 is respectively provided with oxidation resistant plated film, or inner side and outer side is at least within
One of there is oxidation resistant plated film.In order to shield low energy electromagnetic wave, the anti-oxidant plated film is preferably golden（AU）Plated film, it is plated in described
Have the alloy of high magnetic permeability or the inner side and outer side of metal.It is higher in view of golden cost, from cost consideration, it is also an option that by institute
State anti-oxidant plated film and be changed at least double layer of metal plated film.It is preferred that can it is described tool high magnetic permeability alloy or metal on the inside of and
At least one layer of copper film and one layer of nickel film are plated in outside respectively, and using the copper film bottom of as, plated nickel film again on copper film.Copper coating can shield
Low energy electromagnetic wave is covered, nickel coating has antioxidation, prevents from being corroded.Applicant learns by largely testing, the plating
The thickness of copper film and plated nickel film respectively be at least 7 microns it is preferable with shield effectiveness at 3 microns, that is to say, that the copper plating film and
The thickness critical value of plated nickel film has preferable shield effectiveness when being respectively 7 microns and 3 microns, such as wants to obtain preferably certainly
Shield effectiveness, it can be thickeied on the basis of its critical value, to realize particular mask purpose.
In addition, the scintillation crystal unit 130 is provided with light shield layer 112, the light shield layer 112 coats scintillation crystal 119,
Only retain an exiting surface 1191 of scintillation crystal；And photoelectric conversion unit 114, the photoelectric conversion unit 114 with it is described
The coupling of exiting surface 1191 is set, and is electrically connected with by some wires 115 and the pulse amplifier 116.Specifically will
Pulse amplifier 116 electrically connects with the conductive pin 1141 of photoelectric conversion unit 114.Wherein, the described material of light shield layer 112 is
There is the metal or alloy of high reflection function, preferably aluminium or titanium dioxide for light.The photoelectric conversion unit is photoelectricity
Diode, preferably silicon photoelectric diode.It should be noted that the photoelectric conversion unit is led with the exiting surface 1141 by transparent
Light silica gel 113 realizes coupling, to avoid scintillation crystal deliquescence, and ensures that the two reaches minimum contact gap, to reduce light path
Loss, improve transformation efficiency.
, can with ensure gamma ray conversion in addition, scintillation crystal of the present invention is cuboid or cube structure
See that light light path in the presence of light shield layer is simple, can be projected after some secondary reflections from exiting surface 1191, naturally it is also possible to
The scintillation crystal of other stereochemical structures is selected to realize effect same.In addition, the preferred cesium iodide of the scintillation crystal or thallium iodide.
The pulse amplifier 116 has wire 118A, 118B, 118C, 118D, and 118A, 118B on the outside of the wire,
118C, 118D are provided with insulating barrier 117, and the insulating barrier uses lead titanate ceramics, kept except realizing between wire and housing
Insulation is outer, also with ferromagnetism, realizes full-shield.
Be provided with control PCB120 of the present invention comparator 121, charge pump 122, power management 123, MCU124,
Alarm unit (not shown), usb 1 26 and wireless communication module 125.The MCU is micro-control unit, and the present invention is preferably
It is low-power scm, the alarm unit can be with the buzzer, multi-colored led flashing lamp, vibrations for reminding user function
One of motor or any combination, the power management 123, usb 1 26 and wireless communication module 125 use existing skill
Art is realized, will not be described here.
The comparator 121 is electrically connected with by wire 118D and the pulse amplifier 116, and the charge pump 122 is logical
Wire 118A is crossed to be electrically connected with the pulse amplifier 116.
It can be realized gamma ray using the gamma ray detection system of composite structure shell by of the present invention
Detectable electric signal is converted into, and instantaneous radiation dosage is presented into display terminal by cell phone application in it, adds up radiation agent
Amount, dose of radiation time graph, alarm, related advisory etc., are changed into visual data by invisible gamma ray.When there is gamma
During radiation exposure, gamma ray is converted into irregular current pulse signal and exported by wire 115 by scintillation crystal unit 130
The irregular current impulse of capture is believed to the pulse amplifier 116 being electrically connected with therewith, and then by pulse amplifier 116
Number it is converted into irregular voltage pulse signal, then is exported the voltage pulse signal by wire 118B to comparator 121
It is converted into standard sine wave.In detail, i.e., gamma ray is converted into light by described scintillation crystal 119, due to the work of light shield layer 112
With light is projected after some secondary reflections by the exiting surface 1191 of scintillation crystal 119, is now coupled with the exiting surface 1191
The light received is converted into faint irregular current pulse signal by the photoelectric conversion unit 114 of setting, then by electric current arteries and veins
Signal output is rushed to the pulse amplifier 116 being electrically connected with therewith, and then the current pulse signal of capture is converted into irregularly
Voltage pulse signal and export to comparator 121, irregular voltage pulse signal is converted into by standard by comparator 121
Sine square waveform voltage pulse signal, export to MCU analyses, storage and by predefined communication protocol to be sent to display terminal 200 aobvious
Show.Wherein, the charge pump 122 is that photoelectric conversion unit 114 provides a bias by wire 118A（The preferred 18V of the present invention）,
To ensure that photoelectric conversion unit 114 is operated in guided optical mode；The MCU122 is that the offer of comparator 121 one can by wire 127
Tuning DC voltage, and then realize the regulation of the sensitivity of sensor 110；The pulse amplifier 116 is by low noise, the knot of high transconductance
Charge signal, voltage amplitude is converted to by pulse amplifier 116 by type FET BF862 and operational amplifier A D8542 compositions
Degree output, and realize the function of amplification.Because technotron BF862 converts the current into voltage, and pass through operation amplifier
Voltage amplification output is that ripe prior art will not be described here by device AD8542.
As shown in fig. 7, setting the first insulating barrier 35 on the housing 3, housing 3 is divided into by first insulating barrier 35
Electrically separate the first housing 330 and the two parts of the second housing 331, the first housing 330 include the first oxide thermoelectricity
Material layer 31, the second insulating barrier 32 and the second oxide pyroelectric material layer 33, and the second oxide pyroelectric material layer 33 is provided with
First electrode 34；Second housing 331 includes the first alloy thermoelectric material layer 36, the 3rd insulating barrier 37 and the second alloy thermoelectric material
Layer 38, and the second alloy thermoelectric material layer 38 is provided with second electrode 39, the first oxide pyroelectric material layer 31 and the first alloy
Thermoelectric material layer 36 is connected by conductive layer 40.By upper analysis, the housing of the first housing 330 and second of the present invention
331 are at least three-decker, and inside and outside two layers is thermoelectric material layer, and centre sets an insulating barrier（Such as silicon dioxide layer）, and
The thermoelectric material layer for being arranged at enclosure interior is provided with electrode.It need to stress, what the first housing 330 was selected is N-type oxygen
Compound thermoelectric material layer, what the second housing 331 was selected is p-type alloy thermoelectric material layer.
First housing 330 of the invention is by the first oxide pyroelectric material layer 31, the second insulating barrier 32 and the second oxide
Thermoelectric material layer 33 forms at least three layers of composite construction；Second housing 331 is exhausted by the first alloy thermoelectric material layer the 36, the 3rd
The alloy thermoelectric material layer 38 of edge layer 37 and second forms at least three layers of composite construction.Due to oxide pyroelectric material, alloy heat
Electric material is respectively provided with extraordinary thermal insulation with silica.Therefore, the first housing 330 and the second housing 331 can keep housing
Internal temperature for a long time be in temperature constant state, when user holds detection device of the present invention or place it in temperature compared with
High place（Such as irradiation or near heating sources under the sun）Housing internal-external temperature difference can be made larger, be now arranged at outside the first housing 330
First oxide pyroelectric material layer 31 of side is equivalent to hot junction, the second oxide thermoelectricity material being arranged on the inside of the first housing 330
The bed of material 33 is equivalent to cold end；Similarly, the first alloy thermoelectric material layer 36 in the outside of the second housing 331 is arranged at equivalent to heat
End, the second alloy thermoelectric material layer 38 of the inner side of the second housing 331 is arranged at equivalent to cold end, and the first oxide pyroelectric material
Layer 31 is connected with the first alloy thermoelectric material layer 36 by conductive layer 40, according to Seebeck（Seebeck）Effect, due to hot junction
With the presence of temperature difference between cold end, make the cold end second electrode 39 of the second alloy thermoelectric material layer 38 there is negative electrical charge to accumulate and turn into
Negative electrode（“-”）；The cold end first electrode 34 of second oxide pyroelectric material layer 33 has positive charge to accumulate and turn into anode（“+”）,
Because the first oxide pyroelectric material layer 31 is connected to form closure electricity with the first alloy thermoelectric material layer 36 by conductive layer 40
Road so that first electrode 34 can electrically connect with second electrode 39 with the control PCB120, specially electric with usb 1 26
Connection, further to lift the endurance of detection device 100 or when detection device owes electric by rubbing or placing it in thermal source
Nearby extend endurance to realize.
In addition, it should be noted that, the first oxide pyroelectric material layer 31 and the second oxide thermoelectricity material of the present invention
The bed of material 33, the first alloy thermoelectric material layer 36 and the second alloy thermoelectric material layer 38 are integrated formed structure, to form cold end
With hot junction structure.
First alloy thermoelectric material layer 36 of the present invention, the second alloy thermoelectric material layer 38, the first oxide thermoelectricity
Material layer 31, the second oxide pyroelectric material layer 33 are low-temperature thermoelectric material, specifically can be according to different application scenarios configurations not
Thermoelectric material with operating temperature combines, because being prior art, not in this to go forth.
Further, since silica has fabulous heat-and corrosion-resistant and insulation characterisitic, therefore of the present invention first
Insulating barrier 35, the second insulating barrier 32, the 3rd insulating barrier 37 are used as insulating barrier using silica.
In addition, first electrode 34 of the present invention, second electrode 39, conductive layer 40 are conductive material, can be silver,
Gold, aluminium, nickel, lead, copper, graphite any one or its combination, to realize good conductive effect.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of portable gamma ray detection system using composite structure shell, including：
Detection device（100）, the detection device includes housing（3）, sensor（110）, control PCB（120）；
And display terminal（200）, the display terminal（200）Built-in APP softwares；
The detection device（100）With display terminal（200）Interior APP softwares are connected with communication；
It is characterized in that：The sensor（110）Including radome（111）, and it is arranged at radome（111）Internal flicker
Crystal unit（130）, pulse amplifier（116）, the scintillation crystal unit（130）With pulse amplifier（116）It is electrically connected with,
The pulse amplifier（116）With controlling PCB（120）It is electrically connected with；And the housing（3）For thermoelectric material layer and insulating barrier
The composite construction of composition.
2. the gamma ray detection system according to claim 1 using composite structure shell, it is characterised in that：Described
Housing（3）The first insulating barrier of upper setting（35）, first insulating barrier（35）By housing（3）It is divided into the first housing（330）With
Two housings（331）, the first housing（330）Including the first oxide pyroelectric material layer（31）, the second insulating barrier（32）With the second oxygen
Compound thermoelectric material layer（33）, and the second oxide pyroelectric material layer（33）It is provided with first electrode（34）；Second housing（331）
Including the first alloy thermoelectric material layer（36）, the 3rd insulating barrier（37）With the second alloy thermoelectric material layer（38）, and the second alloy
Thermoelectric material layer（38）It is provided with second electrode（39）, the first oxide pyroelectric material layer（31）With the first alloy thermoelectric material layer
（36）Pass through conductive layer（40）It is connected.
3. the gamma ray detection system according to claim 2 using composite structure shell, it is characterised in that：Described
Monoxide thermoelectric material layer（31）With the second oxide pyroelectric material layer（33）Be formed in one structure, the first alloy heat
Material layer（36）With the second alloy thermoelectric material layer（38）Be formed in one structure.
4. the gamma ray detection system according to claim 2 using composite structure shell, it is characterised in that：Described
One insulating barrier（35）, the second insulating barrier（32）, the 3rd insulating barrier（37）For silica.
5. the gamma ray detection system according to claim 2 using composite structure shell, it is characterised in that：Described
One electrode（34）, second electrode（39）, conductive layer（40）Can be that silver, gold, aluminium, nickel, lead, copper, graphite are any for conductive material
A kind of or its combination.
6. the gamma ray detection system according to claim 2 using composite structure shell, it is characterised in that：Described
One electrode（34）, second electrode（39）Respectively with controlling PCB（120）Electrical connection.
7. the gamma ray detection system according to claim 1 using composite structure shell, it is characterised in that：The sudden strain of a muscle
Bright crystal unit（130）It is provided with light shield layer（112）, the light shield layer（112）Coat scintillation crystal（119）, only retain flicker
One exiting surface of crystal（1191）；And photoelectric conversion unit（114）, the photoelectric conversion unit（114）With the light extraction
Face（1191）Coupling set, and with the pulse amplifier（116）It is electrically connected with.
8. the portable gamma ray detection system using composite structure shell according to claim 1, it is characterised in that：
The control PCB（120）On be provided with and the pulse amplifier（116）The comparator of electric connection（121）.
9. the portable gamma ray detection system using composite structure shell according to claim 1, it is characterised in that：
The control PCB（120）On be provided with and the pulse amplifier（116）The charge pump of electric connection（122）.
10. the portable gamma ray detection using composite structure shell according to claim 1 to 9 any claim
System, it is characterised in that：The communication can be ZigBee communication either Z-Wave communication or WiFi communication or
Bluetooth communication, the display terminal（200）Can be smart mobile phone either tablet personal computer or notebook personal computer or number
Code-phase machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710927140.7A CN107728187A (en) | 2017-10-09 | 2017-10-09 | Using the gamma ray detection system of composite structure shell |
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| CN201710927140.7A CN107728187A (en) | 2017-10-09 | 2017-10-09 | Using the gamma ray detection system of composite structure shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117518223A (en) * | 2024-01-08 | 2024-02-06 | 陕西迪泰克新材料有限公司 | Alpha particle detector and preparation method thereof |
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Application publication date: 20180223 |