CN206411277U - X γ dose of radiation testers - Google Patents
X γ dose of radiation testers Download PDFInfo
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- CN206411277U CN206411277U CN201720047657.2U CN201720047657U CN206411277U CN 206411277 U CN206411277 U CN 206411277U CN 201720047657 U CN201720047657 U CN 201720047657U CN 206411277 U CN206411277 U CN 206411277U
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- radiation
- dose rate
- measuring head
- controller
- tester
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Abstract
The utility model discloses a kind of X γ dose of radiation testers, including：Low dose rate X γ radiation measuring head, high dose rate X γ radiation measuring head, signal adapter, pulse discriminator, counter and controller；Low dose rate X γ radiation measuring head, signal adapter, pulse discriminator, counter and controller are sequentially connected；High dose rate X γ radiation measuring head, signal adapter, pulse discriminator, counter and controller are sequentially connected；Computing unit and tester switch unit are provided with controller, tester switch unit is used to switch using low dose rate X γ radiation measuring heads and high dose rate X γ radiation measuring heads；Computing unit is used to activate the work of tester switch unit.The utility model is simple in construction, it is easy to accomplish.Suitable for the unknown measurement place of all kinds of different radiation intensity, this natural eradiation and man-made radiation can be distinguished.
Description
Technical field
The utility model belongs to measurement calibrating installation technical field.Relate in particular to a kind of X- γ dose of radiations test
Instrument.
Background technology
With the continuous progressive and development and popularization of technology, such as treatment of construction material, nuclear medicine diagnostic, industrial flaw detection radiation
The places with man-made radiation such as source, irradiation radioactive source are begun to appear in the life of people.And it is artificial radioactive exist with
Can power have directly influenced the health and safety of people, therefore recognize in above-mentioned place this natural eradiation and man-made radiation
It is an important safety inspection project.Radiation-measurment equipment its radiation detection scope in currently available technology is all limited
's.It is divided into low-dose rate irradiation tester and high dose rate radiation tester.The defect of these products is, when staff enters
Enter the unknown new place of a radiation intensity carry out it is often at a loss as to what to do during radiation detection.Such as, if staff carries high
Dose rate radiation tester enters a low-inensity radiation place, then staff can have found to can't detect man-made radiation and occur
Erroneous judgement.If staff, which carries low-dose rate irradiation tester, enters a high-level radiation place, then staff is only capable of
The maximum radiation intensity that low-dose rate irradiation tester can be measured is read, accurate testing result can not be not only obtained, worked
Personnel can also have a negative impact because not making timely protection to healthy.Therefore, how to develop a kind of new
Dose of radiation tester, it is adaptable to the new place unknown to radiation intensity carries out radiation test, is that those skilled in the art need
The direction to be studied.
Utility model content
The utility model provides a kind of X- γ dose of radiation testers, with wider Net long wave radiation detection range, fits
For carrying out radiation test to the unknown new place of radiation intensity,
The concrete technical scheme that it is used is as follows：
A kind of X- γ dose of radiation testers, including：Low dose rate X- γ radiation measuring head, high dose rate X- γ radiation are surveyed
Try head, signal adapter, pulse discriminator, counter and controller；The low dose rate X- γ radiation measuring heads are detection model
Enclose be 1nSv/h -100mSv/h radiation tester；The high dose rate X- γ radiation measuring head is that investigative range is 100 μ
Sv/h -10Sv/h radiation tester；The low dose rate X- γ radiation measuring head, signal adapter, pulse discriminator, meter
Number device and controller are sequentially connected；The high dose rate X- γ radiation measuring head, signal adapter, pulse discriminator, counter
Sequentially connected with controller；Computing unit and tester switch unit are provided with the controller, tester switch unit is used for
Switching radiates measuring head and high dose rate X- γ radiation measuring heads using the low dose rate X- γ；In the computing unit in advance
It is written with the first threshold and Second Threshold of dose of radiation；When the computing unit calculates low dose rate X- γ radiation measuring heads
When surveyed amount of radiation surveys amount of radiation less than Second Threshold higher than first threshold or high dose rate X- γ radiation measuring heads, calculate single
Member activation tester switch unit.
By using this technical scheme：With low dose rate X- γ radiate measuring head by the impulse amplitude upper-level threshold of measurement and
Lower presentation time distribution, calculates corresponding intergral counting rate, and with reference count rate odds ratio compared with realization is to naturally radioactive and manually
It is radioactive to distinguish.When computing unit, which calculates low dose rate X- γ radiation measuring heads, surveys amount of radiation higher than threshold value, judge
Area is radiated into height, switching to high dose rate X- γ radiation measuring heads by tester switch unit is operated.And when calculating
Unit calculates high dose rate X- γ radiation measuring heads when surveying amount of radiation less than threshold value, judges to enter Low emissivity area, with survey
Examination device switch unit switches to low dose rate X- γ radiation measuring heads and is operated.
Preferably：In above-mentioned X- γ dose of radiation testers, the low dose rate X- γ radiation measuring head includes silicon
Optical diode, cesium iodide crystal, reflection layer and package casing；The cesium iodide crystal is installed in the package casing, institute
Silicon photo diode is stated to be installed on package casing, to cesium iodide crystal radiation excitation light beam；The reflection layer is outer located at encapsulation
Between shell and cesium iodide crystal.Adopt the structure, sensitivity is up to 400cps/ in the case of without using photomultiplier
USv/h, with detection sensitivity it is high the characteristics of.Another preferred orientations are：In above-mentioned X- γ dose of radiation testers, institute
State high dose rate X- γ radiation measuring heads and use G-M counters.Using such a radiation tester, it detects the upper limit and may be up to
10Sv/h。
It may further be preferable that in above-mentioned X- γ dose of radiation testers：Also include LED alarm lamp, the LED alarm lamp
Connect in connection control circuit, the control circuit provided with alarm lamp control unit, for controlling LED alarm lamp to flash.
By using this technical scheme：With LED alarm lamp by different colours indicate low dose rate X- γ detection heads and
The working condition of high dose rate X- γ detection heads.
It is even furthermore preferable that in above-mentioned X- γ dose of radiation testers：Also include expansion connection module, the extension
Interface module is installed on controller.
By using this technical scheme：It is external and recognize various types of Intelligent Measurement with expansion connection module
Head.
Compared with prior art, the utility model is simple in construction, it is easy to accomplish.Suitable for all kinds of different radiation intensity not
The measurement place known, this natural eradiation and man-made radiation can be distinguished.
Brief description of the drawings
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structured flowchart of the utility model embodiment 1；
Fig. 2 is the structural representation of low dose rate X- γ radiation measuring heads in Fig. 1；
Fig. 3 is the structured flowchart of the utility model embodiment 2；
Fig. 4 is the structured flowchart of the utility model embodiment 3.
Each reference and component names corresponding relation are as follows：
1st, low dose rate X- γ radiate measuring head；2nd, high dose rate X- γ radiate measuring head；3rd, signal adapter；4th, pulse
Discriminator；5th, counter；6th, controller；7th, LED alarm lamp；8th, expansion connection module；11st, silicon photo diode；12nd, cesium iodide is brilliant
Body；13rd, reflection layer；14th, package casing.
Embodiment
In order to illustrate more clearly of the technical solution of the utility model, the utility model is made into one below in conjunction with accompanying drawing
Step description.
It is embodiment 1 of the present utility model as shown in Figure 1-2：
A kind of X- γ dose of radiation testers, it is characterised in that including：Low dose rate X- γ radiation measuring head 1, high dose
Rate X- γ radiation measuring head 2, signal adapter 3, pulse discriminator 4, counter 5 and controller 6；Wherein, the low dose rate
X- γ radiate measuring head 1（1nSv/h - 100mSv/h）Radiation tester；The high dose rate X- γ spokes
Penetrate measuring head 2 is for investigative range（100μSv/h - 10Sv/h）Radiation tester；The low dose rate X- γ radiation test
First 1, signal adapter 3, pulse discriminator 4, counter 5 and controller 6 are sequentially connected；The high dose rate X- γ radiation test
First 2, signal adapter 3, pulse discriminator 4, counter 5 and controller 6 are sequentially connected；Tester is provided with the controller 6
Switch unit and computing unit, tester switch unit is used to switch radiates measuring head 1 and height using the low dose rate X- γ
Close rate X- γ radiate measuring head 2.The first threshold and Second Threshold of dose of radiation are previously written in computing unit；When described
Computing unit calculates low dose rate X- γ radiation measuring heads 1 and surveys amount of radiation higher than first threshold or high dose rate X- γ radiation
When measuring head 2 surveys amount of radiation less than Second Threshold, computing unit activation tester switch unit.
Specifically, low dose rate X- γ radiation measuring head 1 includes silicon photo diode 11, and cesium iodide crystal 12, light is anti-
Penetrate layer 13 and package casing 14；The cesium iodide crystal 12 is installed in the package casing 14, and the silicon photo diode 11 is pacified
Loaded on package casing 14, to the radiation excitation light beam of cesium iodide crystal 12；The reflection layer 13 is located at package casing 14 and iodine
Between change caesium crystal 12.The high dose rate X- γ radiation measuring head 2 uses G-M counters.
Wherein, low dose rate X- γ radiate the radiation signal that measuring head 1 or high dose rate X- γ radiation measuring heads 2 are captured
Successively controller 6 is reached through signal adapter 3, pulse discriminator 4, counter 5.Wherein, signal adapter 3 is by low dose rate X-
What detector detection was captured number is converted into electric signal, and 4 pairs of electric signals of pulse discriminator reject interference signals.Counter 5 will
The signal is converted into the analog signal of effective detection；Data signal is converted analog signals into by controller 6 and is shown.
It is illustrated in figure 3 embodiment 2 of the present utility model：
The difference of embodiment 2 and embodiment 1 is, LED alarm lamp 7 is also included in this example, and the LED alarm lamp 7 is connected
Control in circuit 6, the control circuit 6 provided with alarm lamp control unit, for controlling LED alarm lamp 7 to flash.
It is illustrated in figure 4 embodiment 3 of the present utility model：
The difference of embodiment 3 and embodiment 2 is, expansion connection module 8, the expansion connection module are also included in this example
8 are installed on controller 6.
It is described above, only specific embodiment of the utility model, but protection domain of the present utility model is not limited to
This, any those skilled in the art is disclosed in the utility model in technical scope, the change that can be readily occurred in
Or replace, it should all cover within protection domain of the present utility model.Protection domain of the present utility model is with claims
Protection domain is defined.
Claims (5)
1. a kind of X- γ dose of radiation testers, it is characterised in that including：Low dose rate X- γ radiate measuring head（1）, high dose
Rate X- γ radiate measuring head（2）, signal adapter（3）, pulse discriminator（4）, counter（5）And controller（6）；
The low dose rate X- γ radiate measuring head（1）It is 1nSv/h -100mSv/h radiation tester for investigative range；Institute
State high dose rate X- γ radiation measuring heads（2）It is 100 μ Sv/h -10Sv/h radiation tester for investigative range；
The low dose rate X- γ radiate measuring head（1）, signal adapter（3）, pulse discriminator（4）, counter（5）And control
Device（6）Sequentially connect；The high dose rate X- γ radiate measuring head（2）, signal adapter（3）, pulse discriminator（4）, count
Device（5）And controller（6）Sequentially connect；
The controller（6）Interior to be provided with computing unit and tester switch unit, tester switch unit uses institute for switching
State low dose rate X- γ radiation measuring heads（1）Measuring head is radiated with high dose rate X- γ（2）；It is previously written in the computing unit
There are the first threshold and Second Threshold of dose of radiation；When low dose rate X- γ radiate measuring head（1）Surveyed amount of radiation is higher than first
Threshold value or high dose rate X- γ radiation measuring heads（2）When surveyed amount of radiation is less than Second Threshold, computing unit activation tester is cut
Change unit.
2. a kind of X- γ dose of radiation testers as claimed in claim 1, it is characterised in that：The low dose rate X- γ radiation is surveyed
Try head（1）Including silicon photo diode（11）, cesium iodide crystal（12）, reflection layer（13）And package casing（14）；The iodate
Caesium crystal（12）It is installed on the package casing（14）It is interior, the silicon photo diode（11）It is installed on package casing（14）It is upper, right
Cesium iodide crystal（12）Radiation excitation light beam；The reflection layer（13）Located at package casing（14）With cesium iodide crystal（12）It
Between.
3. a kind of X- γ dose of radiation testers as claimed in claim 1, it is characterised in that：The high dose rate X- γ radiation is surveyed
Try head（2）Using G-M counters.
4. a kind of X- γ dose of radiation testers as described in claim any one of 1-3, it is characterised in that：Also include LED to alarm
Lamp（7）, the LED alarm lamp（7）Connect connection control circuit（6）, the control circuit（6）In provided with alarm lamp control unit, use
In control LED alarm lamp（7）Flicker.
5. a kind of X- γ dose of radiation testers as claimed in claim 4, it is characterised in that：Also include expansion connection module（8）,
The expansion connection module（8）It is installed on controller（6）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047657.2U CN206411277U (en) | 2017-01-16 | 2017-01-16 | X γ dose of radiation testers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047657.2U CN206411277U (en) | 2017-01-16 | 2017-01-16 | X γ dose of radiation testers |
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| Publication Number | Publication Date |
|---|---|
| CN206411277U true CN206411277U (en) | 2017-08-15 |
Family
ID=59553811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720047657.2U Active CN206411277U (en) | 2017-01-16 | 2017-01-16 | X γ dose of radiation testers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471154A (en) * | 2018-11-09 | 2019-03-15 | 中国核动力研究设计院 | A kind of small-sized GM counting tube wide-range measuring instrument |
| CN113568030A (en) * | 2020-04-29 | 2021-10-29 | 同方威视技术股份有限公司 | Detector assembly and radiation monitoring device |
-
2017
- 2017-01-16 CN CN201720047657.2U patent/CN206411277U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471154A (en) * | 2018-11-09 | 2019-03-15 | 中国核动力研究设计院 | A kind of small-sized GM counting tube wide-range measuring instrument |
| CN109471154B (en) * | 2018-11-09 | 2020-03-17 | 中国核动力研究设计院 | Small-size GM count pipe wide range monitoring instrument |
| CN113568030A (en) * | 2020-04-29 | 2021-10-29 | 同方威视技术股份有限公司 | Detector assembly and radiation monitoring device |
| WO2021218320A1 (en) * | 2020-04-29 | 2021-11-04 | 同方威视技术股份有限公司 | Detector assembly and radiation monitoring device |
| CN113568030B (en) * | 2020-04-29 | 2024-01-16 | 同方威视技术股份有限公司 | Detector assembly and radiation monitoring device |
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