CN209373136U - Integrate the γ radiation detector assembly of tellurium-zincium-cadmium crystal and plastic scintillant - Google Patents
Integrate the γ radiation detector assembly of tellurium-zincium-cadmium crystal and plastic scintillant Download PDFInfo
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- CN209373136U CN209373136U CN201822271158.9U CN201822271158U CN209373136U CN 209373136 U CN209373136 U CN 209373136U CN 201822271158 U CN201822271158 U CN 201822271158U CN 209373136 U CN209373136 U CN 209373136U
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Abstract
The utility model discloses a kind of γ radiation detector assemblies for integrating tellurium-zincium-cadmium crystal and plastic scintillant; including protection cylinder, the protection cylinder rear cover cooperated with protection cylinder, the detection processing component being arranged in protection cylinder and the five core aviation plugs covered after protection cylinder are set; the signal-processing board that the detection processing component includes detector and is mounted on the detector bottom and handled detector detectable signal, five core aviation plugs pass through protection cylinder rear cover and connect with signal-processing board.The utility model is novel in design, by the two distinct types of detection body of installation in a probe, detects low energy region gamma-rays using tellurium-zincium-cadmium crystal, high-energy section gamma-rays is detected using plastic scintillant, optimize structure, realizes the detection of different function detection body, save the cost, Portable practical.
Description
Technical field
The utility model belongs to γ radiation detection technology field, and in particular to a kind of collection tellurium-zincium-cadmium crystal and plastic scintillant
The γ radiation detector assembly being integrated.
Background technique
Gamma radiation monitoring instrument in region generally uses GM pipe or ionization chamber detector in the prior art, energy of γ ray range:
60keV~3MeV lacks energy response in 60keV gamma detector below.Tellurium-zincium-cadmium crystal is applied to semiconductor spy at present
Device is surveyed, plastic scintillant is used for scintillator detector, they are all made of the mode of exclusive use, and are directed to low energy region γ agent
Dose rate monitor, at present still without special measuring instrumentss, therefore it is wide and small in size nowadays to lack a kind of energy response range
Multi-functional gamma detector, realize 10keV~3MeV gamma-ray measurement.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide a kind of collection tellurium
The γ radiation detector assembly that zincium-cadmium crystal and plastic scintillant are integrated, it is novel in design reasonable, pass through the peace in a probe
Two distinct types of detection body is filled, detects low energy region gamma-rays using tellurium-zincium-cadmium crystal, detects high energy using plastic scintillant
Section gamma-rays, optimizes structure, realizes the detection of different function detection body, save the cost, Portable practical, convenient for promoting the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is: collection tellurium-zincium-cadmium crystal and Plastic scintillation
The γ radiation detector assembly that body is integrated, it is characterised in that: including protection cylinder, the protection cylinder rear cover cooperated with protection cylinder, setting
The five core aviation plugs covered in the detection processing component in protection cylinder and after protection cylinder is arranged in, the detection processing component packet
The signal-processing board for including detector and being mounted on the detector bottom and detector detectable signal being handled, five core aviations
Plug passes through protection cylinder rear cover and connect with signal-processing board, and the detector includes detector pipe and is mounted in detector pipe
Plastic scintillant and to the plastic scintillant optical signal carry out photoelectric conversion photomultiplier tube, detector bottom of the tube installation
There is the detector pipe rear cover for blocking detector pipe, is provided with power circuit between detector pipe rear cover and signal-processing board
Plate, hexagonal prism sequentially pass through signal-processing board and power supply circuit board and are fixedly connected with detector pipe rear cover, and hexagonal prism is far from detection
One end of device pipe rear cover is locked by hex nut, and the top of the plastic scintillant is equipped with tellurium-zincium-cadmium crystal, and cadmium-zinc-teiluride is brilliant
The top of body is provided with beryllium window, is provided with pad in the gap between beryllium window and plastic scintillant and around the side wall of tellurium-zincium-cadmium crystal
Circle, tellurium-zincium-cadmium crystal are connect by the first conducting wire with signal-processing board, and photomultiplier tube passes through the second conducting wire and signal-processing board
Connection.
The above-mentioned γ radiation detector assembly for integrating tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: described
Gap of first conducting wire across detector pipe and protection cylinder is connect with signal-processing board, and second conducting wire passes through detector
Pipe rear cover is connect with signal-processing board.
The above-mentioned γ radiation detector assembly for integrating tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: described
The upper surface of beryllium window is flushed with the upper surface of protection cylinder.
The above-mentioned γ radiation detector assembly for integrating tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: described
It is integrated on signal-processing board and acquires the pre-amplification circuit of signal and for handling photomultiplier transit for handling tellurium-zincium-cadmium crystal
The signal amplification circuit of pipe output signal.
The above-mentioned γ radiation detector assembly for integrating tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: described
Beryllium window is 250 μm thick.
The above-mentioned γ radiation detector assembly for integrating tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: described
Photomultiplier tube is CR105 photomultiplier tube.
The above-mentioned γ radiation detector assembly for integrating tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: described
Washer is rubber washer, and detector pipe is aluminum detector pipe, and protection cylinder is stainless steel protection cylinder.
Compared with the prior art, the utility model has the following advantages:
1, the utility model is novel in design rationally, passes through the two distinct types of detection body of installation, benefit in a probe
Low energy region gamma-rays is detected with tellurium-zincium-cadmium crystal, high-energy section gamma-rays is detected using plastic scintillant, optimizes structure, is realized different
Function detects the detection of body, save the cost, Portable practical.
2, the utility model is by setting beryllium window, and beryllium window selects the beryllium window of 250 μ m-thicks, and the incidence beryllium window is to gamma-ray
Transmitance is more than 95%, and reliable and stable, using effect is good.
3, the utility model is used by the way that tellurium-zincium-cadmium crystal, tellurium-zincium-cadmium crystal are arranged on plastic scintillant with a thickness of 2mm
Tellurium-zincium-cadmium crystal, using tellurium-zincium-cadmium crystal to low energy region gamma-rays have good response characteristic, can at room temperature directly
Gamma-rays is become into electronics, realizes the gamma-ray measurement of 10keV~60keV low energy region, and plastic scintillant to 10keV~
The gamma-rays response of 60keV low energy region is poor, and tellurium-zincium-cadmium crystal is not influenced by plastic scintillant；When gamma-rays reaches 60keV
When~3MeV, tellurium-zincium-cadmium crystal does not respond to the gamma-rays of 10keV~60keV low energy region, reaches the high energy of 60keV~3MeV
The gamma-rays of section is collected by plastic scintillant through beryllium window, tellurium-zincium-cadmium crystal, aluminum hull and generates fluorescence, plastic scintillant and cadmium-zinc-teiluride
Crystal combination using effect is good, convenient for promoting the use of.
In conclusion the utility model is novel in design rationally, pass through the two distinct types of spy of installation in a probe
Body is surveyed, detects low energy region gamma-rays using tellurium-zincium-cadmium crystal, high-energy section gamma-rays is detected using plastic scintillant, optimizes structure,
Realize the detection of different function detection body, save the cost, Portable practical, convenient for promoting the use of.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Description of symbols:
1-beryllium window；2-washers；3-tellurium-zincium-cadmium crystals；
4-plastic scintillants；5-detector pipes；6-protection cylinders；
7-photomultiplier tubes；8-detector pipe rear covers；9-power supply circuit boards；
10-signal-processing boards；11-hexagonal prisms；12-five core aviation plugs；
13-hex nuts；14-protection cylinder rear covers.
Specific embodiment
As depicted in figs. 1 and 2, the utility model includes protecting cylinder 6, the protection cylinder rear cover 14 cooperated with protection cylinder 6, setting
In the detection processing component in protection cylinder 6 and five core aviation plugs 12 being arranged on protection cylinder rear cover 14, the detection processing
Component includes detector and the signal-processing board 10 that is mounted on the detector bottom and is handled detector detectable signal,
Five core aviation plugs 12 pass through protection cylinder rear cover 14 connect with signal-processing board 10, the detector include detector pipe 5 and
The plastic scintillant 4 being mounted in detector pipe 5 and the photomultiplier transit to 4 optical signal of plastic scintillant progress photoelectric conversion
Pipe 7,5 bottom of detector pipe are equipped with the detector pipe rear cover 8 for blocking detector pipe 5, at detector pipe rear cover 8 and signal
It is provided with power supply circuit board 9 between reason plate 10, hexagonal prism 11 sequentially passes through signal-processing board 10 and power supply circuit board 9 and detector
Pipe rear cover 8 is fixedly connected, and the one end of hexagonal prism 11 far from detector pipe rear cover 8 is locked by hex nut 13, and the plastics dodge
The top of bright body 4 is equipped with tellurium-zincium-cadmium crystal 3, and the top of tellurium-zincium-cadmium crystal 3 is provided with beryllium window 1, beryllium window 1 and plastic scintillant 4
Between gap in and the side wall of tellurium-zincium-cadmium crystal 3 is provided with washer 2, tellurium-zincium-cadmium crystal 3 by the first conducting wire and signal at
It manages plate 10 to connect, photomultiplier tube 7 is connect by the second conducting wire with signal-processing board 10.
In the present embodiment, the beryllium window 1 is 250 μm thick.
In the present embodiment, the washer 2 is rubber washer, and detector pipe 5 is aluminum detector pipe, and protection cylinder 6 is stainless
Steel protects cylinder.
It should be noted that utilizing tellurium-zincium-cadmium crystal by the two distinct types of detection body of installation in a probe
Low energy region gamma-rays is detected, high-energy section gamma-rays is detected using plastic scintillant, optimizes structure, realizes different function detection body
Detection, save the cost, Portable practical；By the way that beryllium window 1 is arranged, and beryllium window 1 selects the beryllium window 1 of 250 μ m-thicks, and the incidence beryllium window is to γ
The transmitance of ray is more than 95%, and reliable and stable, using effect is good；By the way that tellurium-zincium-cadmium crystal 3 is arranged on plastic scintillant 4,
Tellurium-zincium-cadmium crystal 3 has low energy region gamma-rays using the tellurium-zincium-cadmium crystal 3 with a thickness of 2mm, using tellurium-zincium-cadmium crystal 3 good
Gamma-rays directly can be become electronics at room temperature, realize the gamma-ray survey of 10keV~60keV low energy region by response characteristic
Amount, and plastic scintillant 4 is poor to the gamma-rays response of 10keV~60keV low energy region, tellurium-zincium-cadmium crystal 3 is not by Plastic scintillation
The influence of body 4；When gamma-rays reaches 60keV~3MeV, tellurium-zincium-cadmium crystal 3 does not have the gamma-rays of 10keV~60keV low energy region
There is response, the gamma-rays for reaching the high-energy section of 60keV~3MeV is dodged through beryllium window 1, tellurium-zincium-cadmium crystal 3, detector pipe 5 by plastics
Bright body 4, which is collected, generates fluorescence, and plastic scintillant 4 and the combined use of tellurium-zincium-cadmium crystal 3 effect are good.
In the present embodiment, gap and signal-processing board 10 of first conducting wire across detector pipe 5 and protection cylinder 6
Connection, second conducting wire pass through detector pipe rear cover 8 and connect with signal-processing board 10.
In the present embodiment, the upper surface of the beryllium window 1 is flushed with the upper surface of protection cylinder 6.
In the present embodiment, it is integrated on the signal-processing board 10 and acquires the preposition of signal for handling tellurium-zincium-cadmium crystal 3
Amplifying circuit and signal amplification circuit for handling 7 output signal of photomultiplier tube.
It should be noted that since tellurium-zincium-cadmium crystal 3 has good response characteristic to low energy region gamma-rays, it can be in room
Gamma-rays is directly become into electronics under temperature, directly passes through gamma-rays of first conducting wire by tellurium-zincium-cadmium crystal by 10keV~60keV
It irradiates the charge generated and pulse signal is switched to by pre-amplification circuit, the gamma-rays that plastic scintillant 4 receives high-energy section generates
Optical signal is switched to electric signal by photomultiplier tube by fluorescence, and in the present embodiment, the photomultiplier tube 7 is CR105 photoelectricity times
Increase pipe, which is connected to signal amplification circuit and be acquired by the first conducting wire.
When the utility model is used, when outfield energy of γ ray section be 10keV~60keV when, tellurium-zincium-cadmium crystal 3 by
The gamma-rays irradiation of 10keV~60keV generates charge, switchs to pulse letter by the pre-amplification circuit on signal-processing board 10
Number；When outfield energy of γ ray section is 60keV~3MeV, tellurium-zincium-cadmium crystal 3 is not responded to, and the gamma-rays of high-energy section penetrates
Beryllium window 1, tellurium-zincium-cadmium crystal 3, aluminum detector pipe are collected by plastic scintillant 4 generates fluorescence, is believed light by photomultiplier tube 7
Number switch to electric signal, then indoor host computer acquisition is monitored by the signal amplification circuit on signal-processing board 10, by being visited at one
The two distinct types of detection body of installation in head is detected low energy region gamma-rays using tellurium-zincium-cadmium crystal, is visited using plastic scintillant
High-energy section gamma-rays is surveyed, structure is optimized, the detection of different function detection body is realized, detects 10keV~3MeV wide energy section γ
Ray, save the cost, Portable practical, using effect are good.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still
Belong in the protection scope of technical solutions of the utility model.
Claims (7)
1. integrating the γ radiation detector assembly of tellurium-zincium-cadmium crystal and plastic scintillant, it is characterised in that: including protecting cylinder
(6), it is being protected with the protection cylinder rear cover (14) of protection cylinder (6) cooperation, the detection processing component being arranged in protection cylinder (6) and setting
Five core aviation plugs (12) on casing rear cover (14), the detection processing component include detector and are mounted on the detector
Bottom and the signal-processing board handled detector detectable signal (10), five core aviation plugs (12) pass through protection cylinder rear cover
(14) it is connect with signal-processing board (10), the detector includes detector pipe (5) and the modeling that is mounted in detector pipe (5)
Expect scintillator (4) and carries out the photomultiplier tube (7) of photoelectric conversion, detector pipe (5) to the plastic scintillant (4) optical signal
Bottom is equipped with the detector pipe rear cover (8) for blocking detector pipe (5), detector pipe rear cover (8) and signal-processing board
(10) be provided between power supply circuit board (9), hexagonal prism (11) sequentially pass through signal-processing board (10) and power supply circuit board (9) with
Detector pipe rear cover (8) is fixedly connected, and the one end of hexagonal prism (11) far from detector pipe rear cover (8) is locked by hex nut (13)
Tightly, the top of the plastic scintillant (4) is equipped with tellurium-zincium-cadmium crystal (3), and the top of tellurium-zincium-cadmium crystal (3) is provided with beryllium window
(1), washer (2), tellurium are provided in the gap between beryllium window (1) and plastic scintillant (4) and around the side wall of tellurium-zincium-cadmium crystal (3)
Zincium-cadmium crystal (3) is connect by the first conducting wire with signal-processing board (10), and photomultiplier tube (7) passes through at the second conducting wire and signal
Manage plate (10) connection.
2. the γ radiation detector assembly described in accordance with the claim 1 for integrating tellurium-zincium-cadmium crystal and plastic scintillant, special
Sign is: gap of first conducting wire across detector pipe (5) and protection cylinder (6) is connect with signal-processing board (10),
Second conducting wire passes through detector pipe rear cover (8) and connect with signal-processing board (10).
3. the γ radiation detector assembly described in accordance with the claim 1 for integrating tellurium-zincium-cadmium crystal and plastic scintillant, special
Sign is: the upper surface of the beryllium window (1) is flushed with the upper surface of protection cylinder (6).
4. the γ radiation detector assembly described in accordance with the claim 1 for integrating tellurium-zincium-cadmium crystal and plastic scintillant, special
Sign is: the pre-amplification circuit for handling tellurium-zincium-cadmium crystal (3) acquisition signal is integrated on the signal-processing board (10)
With the signal amplification circuit for handling photomultiplier tube (7) output signal.
5. the γ radiation detector assembly described in accordance with the claim 1 for integrating tellurium-zincium-cadmium crystal and plastic scintillant, special
Sign is: the beryllium window (1) is 250 μm thick.
6. the γ radiation detector assembly described in accordance with the claim 1 for integrating tellurium-zincium-cadmium crystal and plastic scintillant, special
Sign is: the photomultiplier tube (7) is CR105 photomultiplier tube.
7. the γ radiation detector assembly described in accordance with the claim 1 for integrating tellurium-zincium-cadmium crystal and plastic scintillant, special
Sign is: the washer (2) is rubber washer, and detector pipe (5) is aluminum detector pipe, and protection cylinder (6) is stainless steel protection
Cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822271158.9U CN209373136U (en) | 2018-12-29 | 2018-12-29 | Integrate the γ radiation detector assembly of tellurium-zincium-cadmium crystal and plastic scintillant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822271158.9U CN209373136U (en) | 2018-12-29 | 2018-12-29 | Integrate the γ radiation detector assembly of tellurium-zincium-cadmium crystal and plastic scintillant |
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| CN209373136U true CN209373136U (en) | 2019-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764086A (en) * | 2020-12-28 | 2021-05-07 | 中国科学技术大学 | Miniaturized compound gamma spectrometer |
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2018
- 2018-12-29 CN CN201822271158.9U patent/CN209373136U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764086A (en) * | 2020-12-28 | 2021-05-07 | 中国科学技术大学 | Miniaturized compound gamma spectrometer |
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Address after: Yanta District in Shaanxi province Xi'an City Road 710061, No. 108 Patentee after: Xi'an Zhonghe Nuclear Instrument Co.,Ltd. Address before: Yanta District in Shaanxi province Xi'an City Road 710061, No. 108 Patentee before: XI'AN ZHONGHE NUCLEAR APPARATUS CO.,LTD. |