CN209182267U - A kind of neutron detection device for Water quality detection - Google Patents
A kind of neutron detection device for Water quality detection Download PDFInfo
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- CN209182267U CN209182267U CN201822089399.1U CN201822089399U CN209182267U CN 209182267 U CN209182267 U CN 209182267U CN 201822089399 U CN201822089399 U CN 201822089399U CN 209182267 U CN209182267 U CN 209182267U
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- mounting rack
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Abstract
The utility model discloses a kind of neutron detection devices for Water quality detection, including neutron emitting source, neutron detection device, neutron measurement device, mounting rack, neutron detection device is mounted on the lower end of mounting rack, neutron emitting source is mounted on the upper end of mounting rack and is arranged towards neutron detection device, neutron measurement device is mounted on mounting rack, the neutron detection device includes neutron detection scintillator, with the light that issues from the neutron detection scintillator of detection and it is converted into the photodetector of electric signal, photodetector has multiple optical fiber and multiple photodetectors, multiple optical fiber correspond to multiple positions setting of the incidence surface of scintillator, multiple photodetectors are arranged corresponding to multiple optical fiber, neutron measurement device is connect with photodetector, neutron measurement device is used to record the number of light emission times of photodetector, flashing The incidence surface of body is arranged towards neutron emitting source.
Description
Technical field
The utility model relates to neutron detection device technical fields, and in particular to a kind of neutron for Water quality detection
Detection device.
Background technique
Water pollution includes chemical contamination and physical contamination, and chemical contamination refers to that harmful chemical substance causes the use valence of water
Value reduces or loses, and causes the pollution to environment, and physical contamination refers to dirt caused by some floating materials or suspended matter in water body
Dye.
At present for water pollution, unless some pollution especially severes, the dirt that directly can be intuitively found out by naked eyes
Dye, other most of water pollutions are required to test and analyze by experiment, can just be obtained a result, often relate to sampling, adjust
Reagent processed, obtains analysis conclusion at chemical reaction experiment.Its detection process very complicated, and can have human error.
Utility model content
The purpose of the utility model is to provide a kind of simple, convenient, detections accurately for Water quality detection
Neutron detection device.
A kind of neutron detection device for Water quality detection, including neutron emitting source, neutron detection device, neutron moisture
Device, mounting rack are measured, neutron detection device is mounted on the lower end of mounting rack, and neutron emitting source is mounted on the upper end of mounting rack and court
It is arranged to neutron detection device, neutron measurement device is mounted on mounting rack, and the neutron detection device includes neutron detection
With scintillator and the light issued from the neutron detection scintillator and the photodetector for being converted into electric signal are detected, light inspection
Surveying device has multiple optical fiber and multiple photodetectors, and multiple optical fiber correspond to multiple positions setting of the incidence surface of scintillator,
Multiple photodetectors are arranged corresponding to multiple optical fiber, and neutron measurement device is connect with photodetector, and neutron measurement device is used
It is arranged in the incidence surface of the number of light emission times of record photodetector, scintillator towards neutron emitting source.
The utility model is further arranged to, and the mounting rack can carry out the adjusting of length in above-below direction.
The utility model is further arranged to, and the photodetector is photomultiplier tube.
The utility model is further arranged to, and the neutron emitting source includes the charged particle for being sequentially connected setting
Source, accelerator, beam adjuster, target further include container and tubular shielding component, and target is arranged inside container, tubular shielding structure
The NEUTRON EMISSION end of container is arranged in part.
The utility model is further arranged to, and the upper end of the mounting rack, which is additionally provided with, is used to support whole device floating
With the float of the water surface, the neutron emitting source is located at the upside of float.
The utility model is further arranged to, and liquid container ware is additionally provided in the middle part of the mounting rack.
The utility model is further arranged to, and the neutron measurement device is counter.
The utility model is further arranged to, and further includes computing device, data processing equipment, storage equipment.
The utility model is further arranged to, and the liquid container ware convenient for the material that neutron passes through by being made.
The utility model has the beneficial effects that
Neutron detection device for Water quality detection provided herein, is carried out non-using the transmission of neutron
Destructiveness detection, the neutron beam that neutron emitting source issues pass through water body, are irradiated to scintillator, reach scintillator to measure
Neutron population then can centering since water body meeting neutron generates the variation (such as water body is contaminated) of attenuation, especially Water quality
Beamlet generates differential declines effect, thus by Determination water body in the attenuation of neutron beam and normal clean water body
The attenuation of beamlet, so that it may judge that the quality of water body, this kind of detection method are relatively applicable in, especially one in some cases
It only needs fast, easily to detect a bit and be applicable in the case of Water quality, what the pollution sources without accurate judgement water body are
Situation is applicable in.
We can preset a neutron population decaying interval value, as Water quality reference value whether up to standard, because
Contaminated water body generally can all bring more serious neutron population to decay, as long as so the neutron population measured is not in the decay area
Between in value, then can determine whether that for detection water body be contaminated water body.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of the utility model；
Fig. 2 is the schematic illustration of the utility model neutron detection；
Fig. 3 is the second structural representation of the utility model；
Fig. 4 is the third structural representation of the utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
The utility model is illustrated below with reference to Fig. 1 to Fig. 4.
A kind of neutron detection device for Water quality detection, including neutron emitting source 1, neutron detection device 2, neutron
Measuring device 3, mounting rack 4.
Neutron detection device 2 is mounted on the lower end of mounting rack 4, and neutron emitting source 1 is mounted on the upper end of mounting rack 4 and direction
Neutron detection device 2 is arranged, and neutron measurement device 3 is mounted on mounting rack 4.
The neutron detection device 2 is to detect for the quality condition to water body, in use, neutron detection device 2 is set
Under water body liquid level, neutron emitting source 1 is placed on water body liquid level.
Mounting rack 4 plays the role of the fixed each part of appliance of installation, meanwhile, mounting rack 4 can also be floated in water body
Floating object is fixedly connected, and achievees the purpose that whole device is facilitated to use.Such as installation can be fixed with ship.
The neutron detection device 2 includes neutron detection scintillator 21 and detects from the neutron detection scintillator
21 light issued and the photodetector for being converted into electric signal, photodetector is with multiple optical fiber 22 and multiple photodetectors
23, multiple positions setting of the incidence surface of the corresponding scintillator 21 of multiple optical fiber 22, multiple photodetectors 23 correspond to multiple
Optical fiber 22 is arranged, and neutron measurement device 3 is connect with photodetector 23, and neutron measurement device 3 is for recording photodetector 23
Number of light emission times, the incidence surface of scintillator 21 is arranged towards neutron emitting source 1.
Non-damaged data is carried out using the transmission of neutron, the neutron beam that neutron emitting source 1 issues passes through water body, shines
It is mapped to scintillator 21, so that the neutron population for reaching scintillator 21 is measured, since water body can neutron generation attenuation, especially water
The variation (such as water body is contaminated) of weight, then can generate differential declines effect, so passing through contrasting detection water body to neutron beam
The attenuation of attenuation and normal clean water body neutron beam to neutron beam, so that it may judge the quality of water body, this kind detection
Method, is relatively applicable in some cases, more especially needs fast, easily to detect and is applicable in the case of Water quality,
Pollution sources without accurate judgement water body are to be applicable in what the case where.
We can preset a neutron population decaying interval value, as Water quality reference value whether up to standard, because
Contaminated water body generally can all bring more serious neutron population to decay, as long as so the neutron population measured is not in the decay area
Between in value, then can determine whether that for detection water body be contaminated water body.
Neutron beam passes through water body, is irradiated on the incidence surface of scintillator 21, scintillator 21 is issued glimmering by neutron exposure
The position of light is conducted to photodetector 23 under the action of optical fiber, and achievees the purpose that detection and count.
Neutron measurement device 3 measures the number of light emission times of each photodetector 23, as the quantity of detection reflected neutron, and
Generate detection data.
Wherein, the mounting rack 4 can carry out the adjusting of length in above-below direction, and the adjusting of mounting rack 4 is arranged, mainly
Consider that water body is contaminated the detection of depth profile, or according to nature water body situation come the setting position of regulating device.
Here, can be also taking into account the case where water depth when default neutron population decays interval value, it can be with
Multiple neutron population decaying interval values are set, to correspond to different water depths.
Wherein, the photodetector 23 is photomultiplier tube.Photomultiplier tube is that faint optical signal is converted into electricity
The vacuum electron device of signal.Often it is used on scintillation counter.
Neutron emitting source 1 includes charged particle source 11, accelerator 12, beam adjuster 13, the target 14 for being sequentially connected setting,
It further include container 15 and tubular shielding component 16, target 14 is arranged inside container 15, and tubular shielding component 16 is arranged in container 15
NEUTRON EMISSION end.
Charged particle source 11 generates proton, and accelerator 12 has multiple accelerators, for continuously accelerating by charged particle
The proton that source 11 generates has 1MeV or higher energy, light beam tune by the proton that accelerator 12 accelerates in preferred embodiments
Saving device 13 has multiple field coils, for adjusting direction and the expansion of the proton beam accelerated by beam adjuster 13 according to target 14
Exhibition, the proton beam across beam adjuster 13 generate neutron on target 14, through the reaction between proton and target 14, and target 14 is put
It sets can hardly be in the container 15 that is formed of material of transmission neutron, the outer surface of container 15, which is formed, is penetrated into internal hole, pipe
Shape shield member 16 is connected at the hole, and tubular shielding component 16 is formed by the material for being difficult to transmit neutron, is generated in target 14
Neutron pass through tubular shielding component 16, and become the pulsed neutron beam that is incident in check object.
As shown in figure 3, the upper end of the mounting rack 4 is additionally provided with the float 6 for being used to support whole device floating and the water surface,
The neutron emitting source 1 is located at the upside of float 6.Using the technical solution, whole device equipment can by float 6, and
It is independent floating to carry out detection work on the water surface.
Neutron emitting source 1 is preferentially arranged above float 6, and neutron emitting source 1 is avoided to be in contact with water, and float 6 is used can
The material floated on water body liquid level is made.
As shown in figure 4, the middle part of the mounting rack 4 is additionally provided with liquid container ware 7, liquid container ware 7 is by being convenient for
The material that neutron passes through is made.
In the technical scheme, detection device can not also carry out in water, be put into liquid by the water body that needs are detected
Vessel 7 are contained to be detected, using also more convenient convenient.
Wherein, the neutron measurement device 3 is counter, further includes computing device 9, data processing equipment 109, storage
Equipment 108.The data that neutron measurement device 3 measures are sent to computing device 9 and data processing equipment 109, carry out to the data
Processing, and obtain detection structure, it is ultimately stored in storage equipment 108.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications, above-mentioned vacation can also be made
If these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of neutron detection device for Water quality detection, it is characterised in that: filled including neutron emitting source, neutron detection
It sets, neutron measurement device, mounting rack, neutron detection device is mounted on the lower end of mounting rack, and neutron emitting source is mounted on mounting rack
Upper end and be arranged towards neutron detection device, neutron measurement device is mounted on mounting rack；
The neutron detection device includes neutron detection scintillator and the light that detection is issued from the neutron detection scintillator
And it is converted into the photodetector of electric signal, photodetector has multiple optical fiber and multiple photodetectors, multiple optical fiber pair
Multiple positions of the incidence surface of scintillator are answered to be arranged, multiple photodetectors are arranged corresponding to multiple optical fiber, neutron measurement dress
It sets and is connect with photodetector, neutron measurement device is used to record the number of light emission times of photodetector, the incidence surface of scintillator
It is arranged towards neutron emitting source.
2. a kind of neutron detection device for Water quality detection according to claim 1, it is characterised in that: described
Mounting rack can carry out the adjusting of length in above-below direction.
3. a kind of neutron detection device for Water quality detection according to claim 1 or 2, it is characterised in that: institute
The photodetector stated is photomultiplier tube.
4. a kind of neutron detection device for Water quality detection according to claim 3, it is characterised in that: described
Neutron emitting source includes the charged particle source for being sequentially connected setting, accelerator, beam adjuster, target, further includes container and tubulose
Shield member, target are arranged inside container, and the NEUTRON EMISSION end of container is arranged in tubular shielding component.
5. a kind of neutron detection device for Water quality detection according to claim 4, it is characterised in that: described
The upper end of mounting rack is additionally provided with the float for being used to support whole device floating and the water surface, and the neutron emitting source is located at float
Upside.
6. a kind of neutron detection device for Water quality detection according to claim 4, it is characterised in that: described
Liquid container ware is additionally provided in the middle part of mounting rack.
7. a kind of neutron detection device for Water quality detection according to claim 5, it is characterised in that: described
Liquid container ware is additionally provided in the middle part of mounting rack.
8. a kind of neutron detection device for Water quality detection according to claim 4, it is characterised in that: described
Neutron measurement device is counter.
9. a kind of neutron detection device for Water quality detection according to claim 4, it is characterised in that: further include
Computing device, data processing equipment, storage equipment.
10. a kind of neutron detection device for Water quality detection according to claim 7, it is characterised in that: described
Liquid container ware be made of the material passing through convenient for neutron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089399.1U CN209182267U (en) | 2018-12-12 | 2018-12-12 | A kind of neutron detection device for Water quality detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089399.1U CN209182267U (en) | 2018-12-12 | 2018-12-12 | A kind of neutron detection device for Water quality detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209182267U true CN209182267U (en) | 2019-07-30 |
Family
ID=67376927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822089399.1U Active CN209182267U (en) | 2018-12-12 | 2018-12-12 | A kind of neutron detection device for Water quality detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209182267U (en) |
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2018
- 2018-12-12 CN CN201822089399.1U patent/CN209182267U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200122 Address after: 523808 room 310, building 1, No. 8, South Industrial Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Guangdong Taiwei accelerator Co., Ltd Address before: 101149 Beijing Tongzhou Canal Core Area IV-07 Block Greenbelt Building, 22 Floors 21389 Patentee before: Beijing Zhongbaiyuan International Science and Technology Innovation Research Co., Ltd. |