CN214669625U

CN214669625U - Novel ultrahigh-precision detector

Info

Publication number: CN214669625U
Application number: CN202120670857.XU
Authority: CN
Inventors: 周宗伟; 王硕
Original assignee: Nanjing Yugong Intelligent Technology Co ltd
Current assignee: Nanjing Yugong Intelligent Technology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-11-09
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a novel super high accuracy detector relates to radiation detection technical field, and gamma-ray in the nuclear radiation of current for solving among the prior art is the electromagnetic wave that the wavelength is very short, can pass through the human body, and is huge to the health influence, and traditional detector receives the influence of device internal environment factor easily when surveying to gamma-ray to the problem of gathering incomplete phenomenon appears. The one end of detector pipe shaft is provided with the wiring output, and the other end of detector pipe shaft is provided with the switching end, switching end and detector pipe shaft set up to integral type structure, the top of switching end is provided with the camera lens cutting ferrule, and the camera lens cutting ferrule passes through the internal thread rotation with the switching end and is connected, the inside of switching end is provided with the reflection unit, the one end of reflection unit is provided with the filter unit, and its filter unit is connected with the reflection unit laminating, the inside of wiring output is provided with signal amplifier.

Description

Novel ultrahigh-precision detector

Technical Field

The utility model relates to a radiation detection technology field specifically is a novel super high accuracy detector.

Background

The development of the nuclear radiation detector is one of the signs of the nuclear technology development, and the development and manufacturing level of the nuclear radiation detector in one country is also one of the important signs of the nuclear technology level in the country. The development of nuclear radiation detectors is synchronized with the development of nuclear detection technology, and the development process from counting, spectrum measurement and image display is undergone. In concert with the above-described process, the requirements placed on the development of nuclear radiation detectors are: fast time, high detector efficiency, high resolution, and large volume, making up arrays, etc. In addition, on the premise of similar nuclear performance, the production process of the detector, the environment condition of the detector and the price are also important factors for causing the detector to be changed. In recent decades, a variety of new nuclear radiation detectors have been developed successively, and some new varieties have become commercial products and are gradually accepted by the market; some detectors are eliminated or replaced step by step; other parts of the "old" detector are recognized and reused.

However, gamma rays in the existing nuclear radiation are electromagnetic waves with very short wavelengths, can penetrate through human bodies, and have great influence on health, and the traditional detector is easily influenced by the internal environmental factors of the device when detecting the gamma rays, so that the phenomenon of incomplete collection occurs; therefore, the existing requirements are not met, and a novel ultrahigh-precision detector is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel super high accuracy detector to gamma-ray in the current nuclear radiation who proposes in solving above-mentioned background is the electromagnetic wave that the wavelength is very short, can pass through the human body, and is huge to the health influence, and traditional detector receives the influence of device internal environment factor easily when surveying to gamma-ray, thereby appears gathering the problem of incomplete phenomenon.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel ultrahigh accuracy detector, includes the detector pipe shaft, the one end of detector pipe shaft is provided with the wiring output, and the other end of detector pipe shaft is provided with the switching end, switching end and detector pipe shaft set up to the integral type structure, the top of switching end is provided with the camera lens cutting ferrule, and camera lens cutting ferrule and switching end pass through the internal thread and rotate and be connected, the inside of switching end is provided with the reflection unit, the one end of reflection unit is provided with the filtering unit, and its filtering unit is connected with the reflection unit laminating, the inside of wiring output is provided with signal amplifier, and signal amplifier's model is SBB-5089Z, signal amplifier's one end is provided with the voltage divider, and voltage divider and signal amplifier telecommunication connection.

Preferably, the outer surface of the lens cutting ferrule is provided with a sealing partition plate, the sealing partition plate is fixedly connected with the lens cutting ferrule, the outer surface of the sealing partition plate is provided with a waveform filter, and the periphery of the waveform filter is provided with a plane filter.

Preferably, the wave filter and the plane filter are connected with the sealing partition plate through clamping grooves, and the wave filter and the plane filter are attached to the reflecting unit.

Preferably, the inside of reflection unit is provided with the scintillation obturator, the inside of filtering unit is provided with photomultiplier, and photomultiplier has a plurality ofly, photomultiplier's one end is provided with photocathode, and photomultiplier's the other end is provided with the positive pole.

Preferably, a tube seat is arranged between the filtering unit and the voltage divider, the filtering unit is connected with the voltage divider through the tube seat, a shading sealing sheet is arranged on the outer side of the tube seat, and the shading sealing sheet is connected with the tube seat and the detector tube body through clamping grooves.

Preferably, the photocathode is positioned at one side of the reflection unit, and the anode is positioned at one side of the stem.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an install the camera lens cutting ferrule in the front end of detector, its surface is provided with the wave form filter, regard wave form filter as the main acquisition point of ray, the structure of convex lens can collect ray to reflection unit department, and distribute a plurality of plane filters around the wave form filter, the plane filter can carry out the collection of ray equally, but can not cause the turning back of ray, guarantee the coverage area of ray;

2. the utility model discloses an incident radiation is at scintillator internal loss and deposition energy, arouse the ionization excitation of atom in the plane filter, later excited particle gives off the scintillation photon that the wavelength is close to the visible light, the scintillation photon jets into photomultiplier's photocathode through the light guide, when the light shines photocathode, photocathode excites photoelectron in to the vacuum, these photoelectrons get into multiplication system according to focusing electrode electric field, and multiply through further secondary emission obtains and enlarge, then collect as signal output with the positive pole for the electron after enlarging.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the structure of the adapter of the present invention;

fig. 3 is the schematic diagram of the internal structure of the tube body of the detector of the present invention.

In the figure: 1. a probe body; 2. a lens card sleeve; 3. a wiring output end; 4. sealing the partition plate; 5. a wave filter; 6. a plane filter; 7. transferring an end socket; 8. a reflection unit; 9. a scintillating filler; 10. a filtering unit; 11. a photocathode; 12. an anode; 13. a photomultiplier tube; 14. a tube holder; 15. a light-shielding sealing sheet; 16. a voltage divider; 17. a signal amplifier.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a novel ultra-high precision detector comprises a detector tube body 1, one end of the detector tube body 1 is provided with a wiring output end 3, the wiring output end 3 is connected with a transmitter, the other end of the detector tube body 1 is provided with a switching end 7, the switching end 7 and the detector tube body 1 are arranged into an integrated structure, a lens clamping sleeve 2 is arranged above the switching end 7, the lens clamping sleeve 2 is rotatably connected with the switching end 7 through internal threads, a reflecting unit 8 is arranged inside the switching end 7, excited by ionization of atoms in an internal scintillator of the reflecting unit 8, excited by excited particles, then excited to emit scintillation photons with wavelengths close to visible light, one end of the reflecting unit 8 is provided with a filtering unit 10, the filtering unit 10 is connected with the reflecting unit 8 in an attaching manner, a signal amplifier 17 is arranged inside the wiring output end 3, and the model of the signal amplifier 17 is SBB-5089Z, one end of the signal amplifier 17 is provided with a voltage divider 16, and the voltage divider 16 is in telecommunication connection with the signal amplifier 17.

Further, the surface of lens cutting ferrule 2 is provided with seal baffle 4, and seal baffle 4 and lens cutting ferrule 2 fixed connection, the surface of seal baffle 4 is provided with wave form filter 5, and wave form filter 5 is provided with plane filter 6 all around, wave form filter 5 is as the main acquisition point of ray, the structure of convex lens can collect ray to 8 departments of reflection unit, and it has a plurality of plane filters 6 to distribute all around wave form filter 5, plane filter 6 can carry out the collection of ray equally, nevertheless can not cause the turning back of ray, guarantee the area covered by ray.

Further, the wave filter 5 and the plane filter 6 are connected with the sealing partition plate 4 through a clamping groove, and the wave filter 5 and the plane filter 6 are attached to the reflecting unit 8.

Further, a scintillation filler 9 is provided inside the reflection unit 8, the scintillation filler 9 is argon gas, a photomultiplier tube 13 is provided inside the filter unit 10, and the number of the photomultiplier tubes 13 is plural, a photocathode 11 is provided at one end of the photomultiplier tube 13, and an anode 12 is provided at the other end of the photomultiplier tube 13, when light is irradiated to the photocathode 11, the photocathode 11 excites photoelectrons into vacuum, and the photoelectrons enter the multiplication system in accordance with a focused electrode electric field and are multiplied by further secondary emission, and then the amplified electrons are collected by the anode 12 as a signal output.

Further, a tube seat 14 is arranged between the filter unit 10 and the voltage divider 16, the filter unit 10 is connected with the voltage divider 16 through the tube seat 14, a shading sealing sheet 15 is arranged on the outer side of the tube seat 14, and the shading sealing sheet 15 is connected with the tube seat 14 and the detector tube body 1 through a clamping groove.

Further, the photocathode 11 is located at one side of the reflection unit 8, and the anode 12 is located at one side of the stem 14.

The working principle is as follows: when the device is used, the lens cutting ferrule 2 is arranged at the front end of the detector, the outer surface of the lens cutting ferrule is provided with the waveform filter 5, the waveform filter 5 is used as a main collection point of rays, the structure of the convex lens can collect the rays to the reflecting unit 8, the periphery of the waveform filter 5 is provided with the plurality of plane filters 6, the plane filters 6 can collect the rays, but the rays can not be folded back, the coverage area of the rays is ensured, the incident radiation is lost and energy is deposited in the scintillator, ionization excitation of atoms in the plane filters 6 is caused, then excited particles are excited to emit scintillation photons with the wavelength close to visible light, the scintillation photons are guided into the photocathode 11 of the photomultiplier through light, when the light irradiates the photocathode 11, the photocathode 11 excites photoelectrons into a multiplication system according to a focusing electrode electric field, and the photoelectrons enter the multiplication system and are multiplied and obtained through further secondary emission, the amplified electrons are then collected by the anode 12 as a signal output.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a novel ultra-high accuracy detector, includes detector pipe shaft (1), its characterized in that: the detector comprises a detector tube body (1), a wiring output end (3) is arranged at one end of the detector tube body (1), a switching end (7) is arranged at the other end of the detector tube body (1), the switching end (7) and the detector tube body (1) are arranged into an integrated structure, a lens clamping sleeve (2) is arranged above the switching end (7), the lens clamping sleeve (2) is rotatably connected with the switching end (7) through internal threads, a reflection unit (8) is arranged inside the switching end (7), a filtering unit (10) is arranged at one end of the reflection unit (8), the filtering unit (10) is attached to the reflection unit (8), a signal amplifier (17) is arranged inside the wiring output end (3), the signal amplifier (17) is SBB-5089Z in model, a voltage divider (16) is arranged at one end of the signal amplifier (17), and the voltage divider (16) is in telecommunication connection with the signal amplifier (17).

2. The novel ultra-high precision detector as claimed in claim 1, wherein: the surface of camera lens cutting ferrule (2) is provided with sealed baffle (4), and sealed baffle (4) and camera lens cutting ferrule (2) fixed connection, the surface of sealed baffle (4) is provided with wave form filter (5), and is provided with plane filter (6) around wave form filter (5).

3. The novel ultra-high precision detector as claimed in claim 2, wherein: the wave filter (5) and the plane filter (6) are connected with the sealing partition plate (4) through clamping grooves, and the wave filter (5) and the plane filter (6) are attached to the reflecting unit (8).

4. The novel ultra-high precision detector as claimed in claim 1, wherein: the inside of reflection element (8) is provided with scintillation obturator (9), the inside of filtering element (10) is provided with photomultiplier (13), and photomultiplier (13) have a plurality ofly, the one end of photomultiplier (13) is provided with photocathode (11), and the other end of photomultiplier (13) is provided with positive pole (12).

5. The novel ultra-high precision detector as claimed in claim 4, wherein: be provided with tube socket (14) between filter unit (10) and voltage divider (16), and filter unit (10) are connected with voltage divider (16) through tube socket (14), the outside of tube socket (14) is provided with shading cover plate (15), and shading cover plate (15) are connected through the draw-in groove with tube socket (14) and detector tube shaft (1).

6. The novel ultra-high precision detector as claimed in claim 4, wherein: the photocathode (11) is positioned on one side of the reflecting unit (8), and the anode (12) is positioned on one side of the tube seat (14).