CN107272042B - A kind of method and device for the ionizing radiation dose obtaining radiation detector - Google Patents
A kind of method and device for the ionizing radiation dose obtaining radiation detector Download PDFInfo
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- CN107272042B CN107272042B CN201610213722.4A CN201610213722A CN107272042B CN 107272042 B CN107272042 B CN 107272042B CN 201610213722 A CN201610213722 A CN 201610213722A CN 107272042 B CN107272042 B CN 107272042B
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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
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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
- G01T1/18—Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
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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
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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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- 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
- G01T1/24—Measuring radiation intensity with semiconductor detectors
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Abstract
The embodiment of the present invention provides a kind of method and device of ionizing radiation dose for obtaining radiation detector, which comprises obtains the time interval of radiation detector pulse from starting to work to detecting；After getting the time interval, the high voltage power supply of the radiation detector is closed, makes the radiation detector in a dormant state, until next preset starting working time；The ionizing radiation dose of the radiation detector present position is obtained using the conversion coefficient of preset time to dose of radiation according to the time interval.Above-mentioned technical proposal has the following beneficial effects: can obtain radiation data in real time, realize radiation detector low power operation, greatly extend the lasting of radiation detector and use the time.
Description
Technical field
The present invention relates to core and radiation detection technology field more particularly to a kind of ionizing radiation agents for obtaining radiation detector
The method and device of amount.
Background technique
The Low-power Technology of core and the radiation detector in radiation detection field is the key technology in radiation detector application,
In particular for the radiation detector for using battery or solar charging electric equipment, can radiation detector be changed without battery for a long time
Using being the index paid much attention in user's body use process.The Low-power Technology that radiation detector uses at present mainly includes two
A aspect, one, using low-power consumption component；Second, MCU (micro-control unit, Microcontroller Unit, also known as singly
Piece microcomputer or single-chip microcontroller) control time opening and radiation detector is closed, reduce making for radiation detector and equipment
Use the time.The first technology is universal method but the root problem that can not solve radiation detector power consumption, because it is solved only
The power consumption of the peripheral circuit of radiation detector, and the main exhaustion point radiation detector high voltage power supply of equipment power dissipation still visits radiation
It surveys device and is in high power consumption state.Second method closes the circuits such as radiation detector high voltage power supply, but its maximum drawback exists
In radiation data can not be obtained in real time, useful radiation dose information may can not be captured.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of ionizing radiation dose for obtaining radiation detector, to obtain in real time
Radiation data is taken, realizes radiation detector low power operation, greatly extends the lasting of radiation detector and uses the time.
On the one hand, described the embodiment of the invention provides a kind of method of ionizing radiation dose for obtaining radiation detector
Method includes:
Obtain the time interval of radiation detector pulse from starting to work to detecting；
After getting the time interval, the high voltage power supply of the radiation detector is closed, makes the radiation detector
In a dormant state, until next preset starting working time；
The radiation detection is obtained using the conversion coefficient of preset time to dose of radiation according to the time interval
The ionizing radiation dose of device present position.
On the other hand, the embodiment of the invention provides a kind of device of ionizing radiation dose for obtaining radiation detector, institutes
Stating device includes:
Acquiring unit, for obtaining the time interval of radiation detector pulse from starting to work to detecting；
Control unit makes institute for after getting the time interval, closing the high voltage power supply of the radiation detector
Radiation detector is stated in a dormant state, until next preset starting working time；
Computing unit, for being obtained according to the time interval using the conversion coefficient of preset time to dose of radiation
The ionizing radiation dose of the radiation detector present position.
Above-mentioned technical proposal has the following beneficial effects: can obtain radiation data in real time, realize the low function of radiation detector
Consumption operation greatly extends the lasting of radiation detector and uses the time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of method flow diagram for the ionizing radiation dose for obtaining radiation detector of the embodiment of the present invention；
Fig. 2 is a kind of apparatus structure schematic diagram for the ionizing radiation dose for obtaining radiation detector of the embodiment of the present invention；
Fig. 3 is acquiring unit of embodiment of the present invention structural schematic diagram；
Fig. 4 is the flow chart that application example pulse acquisition time of the present invention is converted to dose of radiation.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, for a kind of method flow diagram for the ionizing radiation dose for obtaining radiation detector of the embodiment of the present invention,
The described method includes:
101, the time interval of radiation detector pulse from starting to work to detecting is obtained；
102, after getting the time interval, the high voltage power supply of the radiation detector is closed, visits the radiation
Device is surveyed in a dormant state, until next preset starting working time；
103, the radiation is obtained using the conversion coefficient of preset time to dose of radiation according to the time interval
The ionizing radiation dose of detector present position.
Preferably, the time interval for obtaining radiation detector pulse from starting to work to detecting, comprising:
When the high voltage power supply for opening the radiation detector records opening for the radiation detector when radiation detector being made to work
Open working time point；The time point that the radiation detector gets first pulse is recorded, the radiation detection is then shut off
The high voltage power supply of device；First arteries and veins is got according to the unlatching working time point of the radiation detector and the radiation detector
The time point of punching obtains the time interval of radiation detector pulse from starting to work to detecting.
Preferably, the time interval for obtaining radiation detector pulse from starting to work to detecting, comprising:
The time interval of radiation detector pulse from starting to work to detecting is obtained by single-chip microcontroller.
Preferably, described after getting the time interval, the high voltage power supply of the radiation detector is closed, is made described
Radiation detector in a dormant state, until next preset starting working time, comprising: when getting the time interval
Afterwards, the high voltage power supply that the radiation detector is closed by single-chip microcontroller makes the radiation detector in a dormant state, until under
One preset starting working time.
Preferably, the radiation detector is at least following one kind: geiger's tube and direct ratio in gas detector
Counting tube, the silicon semiconductor in semiconductor detector measure the electrooptical device of scintillation light in scintillator detector.
As shown in Fig. 2, showing for a kind of apparatus structure for the ionizing radiation dose for obtaining radiation detector of the embodiment of the present invention
It is intended to, described device includes:
Acquiring unit 21, for obtaining the time interval of radiation detector pulse from starting to work to detecting；
Control unit 22 makes for after getting the time interval, closing the high voltage power supply of the radiation detector
The radiation detector in a dormant state, until next preset starting working time；
Computing unit 23, for being obtained according to the time interval using the conversion coefficient of preset time to dose of radiation
Take the ionizing radiation dose of the radiation detector present position.
Preferably, as shown in figure 3, being acquiring unit of embodiment of the present invention structural schematic diagram, the acquiring unit 21 includes:
Logging modle 211, for when the radiation detector being made to work, recording institute when the high voltage power supply for opening the radiation detector
State the unlatching working time point of radiation detector；The time point that the radiation detector gets first pulse is recorded, then
Close the high voltage power supply of the radiation detector；Computing module 212, for the unlatching working time according to the radiation detector
Point and the radiation detector get the time point of first pulse, obtain the radiation detector from starting to work detection
To the time interval of a pulse.
Preferably, the acquiring unit 21, be specifically used for by single-chip microcontroller obtain a radiation detector from start-up operation to
Detect the time interval of a pulse.
Preferably, described control unit 22, specifically for closing institute by single-chip microcontroller after getting the time interval
The high voltage power supply for stating radiation detector makes the radiation detector in a dormant state, until when next preset starting work
Between.
Preferably, the radiation detector is at least following one kind: geiger's tube and direct ratio in gas detector
Counting tube, the silicon semiconductor in semiconductor detector measure the electrooptical device of scintillation light in scintillator detector.
Above-mentioned technical proposal has the following beneficial effects: can obtain radiation data in real time, realize the low function of radiation detector
Consumption operation greatly extends the lasting of radiation detector and uses the time.
Application example is lifted below above-mentioned technical proposal of the embodiment of the present invention is described in detail:
The very important a part of the power consumption of radiation detector is the high voltage power supply of radiation detecting device, such as gas detector
In geiger's tube, proportional counter tube, the silicon semiconductor in semiconductor detector measures scintillation light in scintillator detector
Electrooptical device etc..These radiation detectors require, some requirement more much higher than the operating voltage of current electronics device
The high pressure of direct current 3000V or more, and many energy will be lost during being transformed into high pressure from low pressure in current electronic technology.
The method that the pulse acquisition time that the present invention uses is converted to dose of radiation, most crucial technical point are exactly that high pressure can be greatly reduced
The working time of power supply and radiation detector circuit, to realize the low-power consumption of radiation detector.
Application example of the present invention is the switch that radiation detector working voltage is controlled by single-chip microcontroller (MCU), is radiated
The time of detector pulse from starting to work to detecting, the length of this time and the electricity of radiation detector local environment
Be from radiation intensity it is relevant, closing after getting pulse high pressure and makes equipment in a dormant state, until next setting
The good starting working time.The technical thought key of this realization low-power consumption has two o'clock: first, being radiated by MCU high-speed switch
Detector high pressure realizes that radiation detector about only has the time of several ms working in 1S, thus by high voltage power supply lower power consumption
To original 1/100；Second, the high voltage power supply obtained by MCU opens the time interval δ t obtained to pulse, with ionising radiation
Conversion between dosage provides the COEFFICIENT K of time-dose conversion by testing, to realize the measurement of dosage with Calibration Experiment.
As shown in figure 4, for the flow chart that application example pulse acquisition time of the present invention is converted to dose of radiation, it is specific to wrap
It includes:
401, radiation detector high voltage power supply is opened, makes radiation detector work and record to open working time t1；
402, record gets the time t of first pulse2, and close radiation detector high-voltage electricity；
403, time difference δ t=t is calculated2-t1；
404, ionizing radiation dose D=δ t × K is calculated, wherein D is ionizing radiation dose, and K is to provide by actual measurement
Time to dose of radiation conversion coefficient.
Embodiment 1: radiation detector uses the ZP1201 geiger's tube of Britain Centronic company production, and radiation is visited
Survey device power supply high voltage 450V.Singlechip chip uses MSP430, the PWM output control high pressure on-off generated by it, and records
Get the time of pulse.Use 18650 battery core lithium battery power supply of a section.When not using the technology of the present invention, radiation detector
Using same equipment and scheme, it using the time is only 23.5 hours.When using can be used 1034.2 small after this technology.
Embodiment 2: the silicon photomultiplier that radiation detector is produced using CsI (Tl) scintillation crystal and Bin Song company, silicon
Photomultiplier tube operating voltage is 40V.Singlechip chip uses stm32 f107, the PWM output control high pressure generated by it
On-off gets time of pulse when controlling the switch of radiation detector, and recording opening.Use two section LR6AA alkaline electros
Pond, when not using the technology of the present invention, using same equipment and scheme, it using the time is only 63.1 hours to radiation detector.When
Using 1107.2 hours can be used after this technology.
Embodiment 3: radiation detector uses Firstsensor x-100 semiconductor detector, operating voltage 36V.
Singlechip chip uses MSP430, the PWM output control high pressure on-off generated by it, and records the time for getting pulse.
Use 18650 battery core lithium battery power supply of a section.When not using the technology of the present invention, radiation detector uses same equipment and scheme
It is using the time less than 72 hours.More than when using can be used 1000 small after this technology.
To sum up, application example of the present invention can continue or so current tens hours of portable radiation detector
It is more than hour to extend to 1000 using the time, and the radiation event that radiation detector real-time response can be made current.
It should be understood that the particular order or level of the step of during disclosed are the examples of illustrative methods.Based on setting
Count preference, it should be appreciated that in the process the step of particular order or level can be in the feelings for the protection scope for not departing from the disclosure
It is rearranged under condition.Appended claim to a method is not illustratively sequentially to give the element of various steps, and not
It is to be limited to the particular order or level.
In above-mentioned detailed description, various features are combined together in single embodiment, to simplify the disclosure.No
This published method should be construed to reflect such intention, that is, the embodiment of theme claimed needs to compare
The more features of the feature clearly stated in each claim.On the contrary, as appended claims is reflected
Like that, the present invention is in the state fewer than whole features of disclosed single embodiment.Therefore, appended claims
It is hereby expressly incorporated into detailed description, wherein each claim is used as alone the individual preferred embodiment of the present invention.
For can be realized any technical staff in the art or using the present invention, above to disclosed embodiment into
Description is gone.To those skilled in the art；The various modifications mode of these embodiments will be apparent from, and this
The General Principle of text definition can also be suitable for other embodiments on the basis of not departing from the spirit and scope of the disclosure.
Therefore, the disclosure is not limited to embodiments set forth herein, but most wide with principle disclosed in the present application and novel features
Range is consistent.
Description above includes the citing of one or more embodiments.Certainly, in order to describe above-described embodiment and description portion
The all possible combination of part or method is impossible, but it will be appreciated by one of ordinary skill in the art that each implementation
Example can do further combinations and permutations.Therefore, embodiment described herein is intended to cover fall into the appended claims
Protection scope in all such changes, modifications and variations.In addition, with regard to term used in specification or claims
The mode that covers of "comprising", the word is similar to term " includes ", just as " including " solved in the claims as transitional word
As releasing.In addition, the use of any one of specification in claims term "or" being to indicate " non-exclusionism
Or ".
Those skilled in the art will also be appreciated that the various illustrative components, blocks that the embodiment of the present invention is listed
(illustrative logical block), unit and step can by electronic hardware, computer software, or both knot
Conjunction is realized.For the replaceability (interchangeability) for clearly showing that hardware and software, above-mentioned various explanations
Property component (illustrative components), unit and step universally describe their function.Such function
It can be that the design requirement for depending on specific application and whole system is realized by hardware or software.Those skilled in the art
Can be can be used by various methods and realize the function, but this realization is understood not to for every kind of specific application
Range beyond protection of the embodiment of the present invention.
Various illustrative logical blocks or unit described in the embodiment of the present invention can by general processor,
Digital signal processor, specific integrated circuit (ASIC), field programmable gate array or other programmable logic devices, discrete gate
Or transistor logic, discrete hardware components or above-mentioned any combination of design carry out implementation or operation described function.General place
Managing device can be microprocessor, and optionally, which may be any traditional processor, controller, microcontroller
Device or state machine.Processor can also be realized by the combination of computing device, such as digital signal processor and microprocessor,
Multi-microprocessor, one or more microprocessors combine a digital signal processor core or any other like configuration
To realize.
The step of method described in the embodiment of the present invention or algorithm can be directly embedded into hardware, processor execute it is soft
The combination of part module or the two.Software module can store in RAM memory, flash memory, ROM memory, EPROM storage
Other any form of storaging mediums in device, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this field
In.Illustratively, storaging medium can be connect with processor, so that processor can read information from storaging medium, and
It can be to storaging medium stored and written information.Optionally, storaging medium can also be integrated into the processor.Processor and storaging medium can
To be set in asic, ASIC be can be set in user terminal.Optionally, processor and storaging medium also can be set in
In different components in the terminal of family.
In one or more exemplary designs, above-mentioned function described in the embodiment of the present invention can be in hardware, soft
Part, firmware or any combination of this three are realized.If realized in software, these functions be can store and computer-readable
On medium, or it is transferred on a computer readable medium in the form of one or more instructions or code forms.Computer readable medium includes electricity
Brain storaging medium and convenient for so that computer program is allowed to be transferred to from a place telecommunication media in other places.Storaging medium can be with
It is that any general or special computer can be with the useable medium of access.For example, such computer readable media may include but
It is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage devices or other
What can be used for carry or store with instruct or data structure and it is other can be by general or special computer or general or specially treated
The medium of the program code of device reading form.In addition, any connection can be properly termed computer readable medium, example
Such as, if software is to pass through a coaxial cable, fiber optic cables, double from a web-site, server or other remote resources
Twisted wire, Digital Subscriber Line (DSL) are defined with being also contained in for the wireless way for transmitting such as example infrared, wireless and microwave
In computer readable medium.The disk (disk) and disk (disc) includes compress disk, radium-shine disk, CD, DVD, floppy disk
And Blu-ray Disc, disk is usually with magnetic replicate data, and disk usually carries out optically replicated data with laser.Combinations of the above
Also it may be embodied in computer readable medium.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of method for the ionizing radiation dose for obtaining radiation detector, which is characterized in that the described method includes:
When the high voltage power supply for opening the radiation detector records the radiation detector when radiation detector being made to work
Unlatching working time point；
The time point that the radiation detector gets first pulse is recorded, the high-voltage electricity of the radiation detector is then shut off
Source；
The time of first pulse is got according to the unlatching working time point of the radiation detector and the radiation detector
Point obtains the time interval of radiation detector pulse from starting to work to detecting；
After getting the time interval, the high voltage power supply of the radiation detector is closed, is in the radiation detector
Dormant state, until next preset starting working time；
The radiation detector institute is obtained using the conversion coefficient of preset time to dose of radiation according to the time interval
Locate the ionizing radiation dose of position.
2. obtaining the method for the ionizing radiation dose of radiation detector as described in claim 1, which is characterized in that described to obtain one
The time interval of radiation detector pulse from starting to work to detecting, comprising:
The time interval of radiation detector pulse from starting to work to detecting is obtained by single-chip microcontroller.
3. obtaining the method for the ionizing radiation dose of radiation detector as described in claim 1, which is characterized in that described when acquisition
To after the time interval, the high voltage power supply of the radiation detector is closed, makes the radiation detector in a dormant state, directly
To next preset starting working time, comprising:
After getting the time interval, the high voltage power supply of the radiation detector is closed by single-chip microcontroller, makes the radiation
Detector in a dormant state, until next preset starting working time.
4. obtaining the method for the ionizing radiation dose of radiation detector as described in claim 1, which is characterized in that the radiation is visited
Survey device is at least following one kind: geiger's tube and proportional counter tube in gas detector, the silicon in semiconductor detector
Semiconductor measures the electrooptical device of scintillation light in scintillator detector.
5. a kind of device for the ionizing radiation dose for obtaining radiation detector, which is characterized in that described device includes:
Acquiring unit, for obtaining the time interval of radiation detector pulse from starting to work to detecting；It is described to obtain
The unit is taken to include:
Logging modle, for when the radiation detector being made to work, recording institute when the high voltage power supply for opening the radiation detector
State the unlatching working time point of radiation detector；The time point that the radiation detector gets first pulse is recorded, then
Close the high voltage power supply of the radiation detector；
Computing module, for getting first according to the unlatching working time point of the radiation detector and the radiation detector
The time point of a pulse obtains the time interval of radiation detector pulse from starting to work to detecting；
Control unit makes the spoke for after getting the time interval, closing the high voltage power supply of the radiation detector
Detector is penetrated in a dormant state, until next preset starting working time；
Computing unit, for according to the time interval, using the conversion coefficient of preset time to dose of radiation, described in acquisition
The ionizing radiation dose of radiation detector present position.
6. obtaining the device of the ionizing radiation dose of radiation detector as claimed in claim 5, which is characterized in that
The acquiring unit, specifically for obtaining radiation detector pulse from starting to work to detecting by single-chip microcontroller
Time interval.
7. obtaining the device of the ionizing radiation dose of radiation detector as claimed in claim 5, which is characterized in that
Described control unit, specifically for closing the radiation detector by single-chip microcontroller after getting the time interval
High voltage power supply, make the radiation detector in a dormant state, until next preset starting working time.
8. obtaining the device of the ionizing radiation dose of radiation detector as claimed in claim 5, which is characterized in that the radiation is visited
Survey device is at least following one kind: geiger's tube and proportional counter tube in gas detector, the silicon in semiconductor detector
Semiconductor measures the electrooptical device of scintillation light in scintillator detector.
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| CN104407657A (en) * | 2014-09-23 | 2015-03-11 | 中国船舶重工集团公司第七一九研究所 | Digital potentiometer-based method for online adjustment of high voltage of radiation detector |
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|---|---|---|---|---|
| EP0144674B1 (en) * | 1983-11-09 | 1988-12-28 | Siemens Aktiengesellschaft | A method and circuit for correcting count rate losses of radiation events |
| CN102065762A (en) * | 2008-06-25 | 2011-05-18 | 皇家飞利浦电子股份有限公司 | Radiation therapy system with real time magnetic resonance monitoring |
| CN102830420A (en) * | 2012-08-31 | 2012-12-19 | 中国原子能科学研究院 | Method and system for calibrating working voltage of nuclear radiation detector |
| CN103674283A (en) * | 2013-12-06 | 2014-03-26 | 云南电网公司大理供电局 | Method for remotely detecting surface temperature of primary equipment of transformer substation |
| CN104407657A (en) * | 2014-09-23 | 2015-03-11 | 中国船舶重工集团公司第七一九研究所 | Digital potentiometer-based method for online adjustment of high voltage of radiation detector |
| CN104330814A (en) * | 2014-10-29 | 2015-02-04 | 西南科技大学 | Radioactive source positioning method and system |
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