CN105404172B - A kind of nuclear detector signal imitation device - Google Patents
A kind of nuclear detector signal imitation device Download PDFInfo
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- CN105404172B CN105404172B CN201510685273.9A CN201510685273A CN105404172B CN 105404172 B CN105404172 B CN 105404172B CN 201510685273 A CN201510685273 A CN 201510685273A CN 105404172 B CN105404172 B CN 105404172B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
Abstract
The invention discloses a kind of nuclear detector signal imitation device, including analog acquisition module, signal detection module, data memory module, human-computer interaction module, data processing module and waveform generating module；The pulse signal that detector is produced is gathered by analog acquisition module, and the basic parameter of pulse signal is extracted by signal analysis module, and store basic parameter deposit database storage module, then the parameters such as type photodetector, the detector design parameter of input are received by human-computer interaction module, pass through data processing module in summary all parameter, corresponding data are produced, data are generated into corresponding analog signal finally by waveform generating module sends.The beneficial effects of the invention are as follows：The signal that real radioactive source is produced is substituted, absorption of human body additional radiation dosage is reduced, while the comprehensive test to detection instrument can be completed by producing the pulse signal under various distances, angle and attenuation medium.
Description
Technical field
The present invention relates to nuclear detection instrument field, in particular it relates to a kind of nuclear detector signal imitation device and method.
Background technology
, it is necessary to be irradiated production to detector commonly using nuclear radioactive source in the design and test process of nuclear detection instrument
Raw pulses of radiation signal, so as to judge whether the design of nuclear detector meets requirement.Due to artificially using radioactive source during being somebody's turn to do,
Additional absorbent dose of radiation easily is made one, is detrimental to health, while the distance in test process residing for radioactive source is different, angle
Difference, attenuation medium is different, all can produce influence to the performance verification of detection instrument, and in test process, often due to test
The limitation of condition, it is impossible to comprehensive radiation signal is produced by using radiation source and tested instrument.
The content of the invention
The technical problems to be solved by the invention are to provide one kind can be by producing various distances, angle and attenuation medium
Under pulse signal nuclear detector signal imitation device and method.
The present invention the used technical scheme that solves the above problems is：
A kind of nuclear detector signal imitation device, including analog acquisition module, signal detection module, data memory module,
Human-computer interaction module, data processing module and waveform generating module；Analog acquisition module is connected with signal detection module, signal
Detection module is connected with data memory module, and data memory module and human-computer interaction module are all connected with data processing module,
Data processing module is connected with waveform generating module；
Analog acquisition module has been used for the collection of the pulse signal of twin detector generation, and transfers data to signal inspection
Survey module；
Signal detection module is used for the basic parameter that pulse is exported by signal Recognition Algorithm recognition detector, the spy of identification
Surveying the basic parameter of device output pulse includes the information such as amplitude, rise time, shape, and the essential information of signal is transferred into number
Stored according to memory module；
Data memory module is used to the basic parameter that the detector that signal detection module transmission comes exports pulse being stored in number
Data processing module is sent to according to storehouse, and by basic parameter data；
Human-computer interaction module is used to receive the type photodetector of input, detector design parameter, particle types characteristic, transmitting
Distance, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, and transmit data to data processing module；
Data processing module is used for the data for sending data memory module and human-computer interaction module by Monte Carlo
Algorithm is handled, and produces digitized output signal, and transfer signals to waveform generating module；
Specifically, data processing module simultaneously receive human-computer interaction module receive input type photodetector, design parameter,
Type photodetector, detector design parameter, particle types characteristic, transmitting range, attenuation medium, detection angle, signal output width
Degree and signal to noise ratio, the essential information of the detector pulse come with reference to data memory module transmission, are emulated by Monte Carlo calculations
The detector pulse data under correspondence parameter can be generated, and by burst data transfers to waveform generating module；
The digitized signal that waveform generating module is used to produce data processing module is converted to corresponding nuclear detector
Analog signal output, so that output detector impulse waveform, the waveform can be external to the design that nuclear detection instrument carries out instrument
With test.
The present invention gathers the pulse signal that different detectors are produced by analog acquisition module, and passes through signal analysis module
The basic parameter of pulse signal is extracted, and by basic parameter deposit database storage module storage, then passes through man-machine interaction mould
Block receives type photodetector, detector design parameter, particle types characteristic, transmitting range, attenuation medium, the search angle of input
Degree, signal output amplitude and signal to noise ratio, by data processing module in summary all parameter, produce corresponding data, most
Data are generated into corresponding analog signal by waveform generating module afterwards to send.Pulses of radiation letter is produced by simulating calculation
Number, replacement must currently use radioactive source to produce pulse signal, reduce the dose of radiation that human body is absorbed；Inhomogeneity can be produced
Pulses of radiation signal under type detector, different distance, different angles, differential declines medium multiple combinations, makes than currently single
The application scenarios that pulse signal is produced with radioactive source are extensive.
It is preferred that, nuclear detector signal imitation device also includes remote control interface module, remote control interface module point
It is not connected with analog acquisition module, data memory module and human-computer interaction module, remote control interface module is used to control mould
Intend the opening and closing of acquisition module, the detector information of collection is subjected to remote transmission and people is realized in long-range mode
Machine is interacted, and parameter information is input in human-computer interaction module.
Data transfer, condition monitoring and man-machine interaction can be realized by remote control interface module, can remotely be controlled completely
System, carries out the collection of signal in pulses of radiation signal acquisition process away from radioactive source, reduces human body suction
Dose of radiation.
Specifically, remote control interface module controls the unlatching of analog acquisition module by being connected with analog acquisition module
And closing, realize during using radioactive source acquisition pulse, away from radioactive source, reduce absorption of human body radiation
Dosage；Remote control interface module can remotely be passed the detector information of collection by being connected with data memory module
It is defeated；Remote control interface module can realize man-machine interaction in long-range mode, will join by being connected with human-computer interaction module
Number information is input in the device.
A kind of analogy method of described nuclear detector signal imitation device, comprises the following steps：
S1, the pulse signal produced by analog acquisition module collection detector, pass through signal analysis module and extract pulse
The basic parameter of signal, and by basic parameter deposit database storage module storage, signal is examined in database storage module storage
The basic parameter deposit database of the detector output pulse of module transfer is surveyed, and basic parameter data are sent at data
Manage module；
S2, by human-computer interaction module receive input type photodetector, detector design parameter, particle types characteristic,
Transmitting range, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, and transmit data to data processing module；
S3, data processing module receive human-computer interaction module and receive the type photodetector of input, detector design ginseng simultaneously
Number, particle types characteristic, transmitting range, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, with reference to data storage
The essential information for the detector pulse that module transfer comes, the detector arteries and veins under generation different parameters is emulated by Monte Carlo calculations
Rush data, and by burst data transfers to waveform generating module；
The digitized signal that data processing module is produced is converted to corresponding nuclear detector mould by S4, waveform generating module
Intend signal output.So as to output detector impulse waveform, the waveform can be external to nuclear detection instrument carry out the design of instrument with
Test.
To sum up, the beneficial effects of the invention are as follows：
1st, the present invention simulates the output signal of nuclear radiation detector by electronic installation, substitutes what real radioactive source was produced
Signal, for the design and test process of nuclear detector, reduces absorption of human body additional radiation dosage, while can be each by producing
The pulse signal under distance, angle and attenuation medium is planted, the comprehensive test to detection instrument is completed.Solve nuclear detection instrument
, it is necessary to be irradiated generation pulses of radiation signal to detector commonly using nuclear radioactive source during device is designed and tested, inhale human body
Dose of radiation outside crop, and the pulse signal operations that radiation source is produced under a variety of different conditions are complicated, testing efficiency
Low, instrument test verifies incomplete problem.
2nd, the present invention gathers the pulse signal that different detectors are produced by analog acquisition module, and passes through signal analysis mould
Block extracts the basic parameter of pulse signal, and by basic parameter deposit database storage module storage, then passes through man-machine interaction
Module receives type photodetector, detector design parameter, particle types characteristic, transmitting range, attenuation medium, the search angle of input
Degree, signal output amplitude and signal to noise ratio, by data processing module in summary all parameter, produce corresponding data, most
Data are generated into corresponding analog signal by waveform generating module afterwards to send.Pulses of radiation letter is produced by simulating calculation
Number, replacement must currently use radioactive source to produce pulse signal, reduce the dose of radiation that human body is absorbed；Inhomogeneity can be produced
Pulses of radiation signal under type detector, different distance, different angles, differential declines medium multiple combinations, makes than currently single
The application scenarios that pulse signal is produced with radioactive source are extensive.
3rd, good human-computer interaction module, convenient modification various parameters, exports a variety of pulse signals immediately.
4th, data transfer, condition monitoring and man-machine interaction can be realized by remote control interface module, can be completely long-range
Control, carries out the collection of signal in pulses of radiation signal acquisition process away from radioactive source, reduces human body suction
Dose of radiation.
5th, the present invention is expected to substitute in nuclear detection instrument is designed and is tested produces radiation arteries and veins using real radioactive source
Signal is rushed, absorption of human body additional radiation dosage is not only reduced, while comprehensive analog pulse signal can be exported, completed to instrument
Comprehensive test of device, with favourable to health, and can significantly improve the efficiency of Instrument Design and test, with preferably should
Use prospect.
6th, the stochastic behaviour and core letter of simulation nuclear signal are primarily focused on compared to existing core pulse analogue means or method
Number pulse characteristic of itself, the present invention not only contains stochastic behaviour, pulse characteristic of nuclear signal etc., more by detector and radiation
Spatial character between source, such as detection range, detection angle, attenuation medium characteristic information also contains into, be to more
Close to the simulation of the nuclear signal under true measuring environment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Mark and corresponding parts title in accompanying drawing：
At 1- analog acquisition modules, 2- signal detection modules, 3- data memory modules, 4- human-computer interaction modules, 5- data
Manage module, 6- waveform generating modules, 7- remote control interface modules.
Embodiment
The present invention will now be described in further detail with reference to the accompanying drawings and the accompanying drawings, but embodiments of the present invention
Not limited to this.
Embodiment：
As shown in figure 1, a kind of nuclear detector signal imitation device, including analog acquisition module, signal detection module, data
Memory module, human-computer interaction module, data processing module and waveform generating module；Analog acquisition module and signal detection module phase
Connection, signal detection module is connected with data memory module, data memory module and human-computer interaction module all with data processing
Module is connected, and data processing module is connected with waveform generating module；
Analog acquisition module has been used for the collection of the pulse signal of twin detector generation, and transfers data to signal inspection
Survey module；
Wherein, detector is mainly used to detect the ray that radioactive source is produced, because the distance according to residing for radioactive source is different,
Angle is different, and the different difference of attenuation medium, the intensity for the ion that detector is detected is also different, therefore produced by detector
The feature of pulse signal also differ.
Signal detection module is used for the basic parameter that pulse is exported by signal Recognition Algorithm recognition detector, and by signal
Essential information be transferred to data memory module storage, the basic parameter of detector output pulse is realize pulse-shaping basic
Factor, including the parameter such as amplitude, rise time, shape, are all transferred to data memory module storage；
Described signal Recognition Algorithm realizes that template is exactly the base of known nuclear detector using the method for template matches
This signal, by the method for relative coefficient, obtains the signal matched with template characteristic from the signal of collection.
The formula of coefficient correlation is as follows:
The value of coefficient correlation is between -1 and+1, i.e. -1≤r≤+ 1.Its property is as follows：
Work as r>When 0, two variable positive correlations, r are represented<When 0, two variables are negative correlation.When | r | when=1, represent that two variables are
Fairly linear correlation, as functional relation.As r=0, represent between two variables without linear relationship.When 0<|r|<When 1, represent
There is a certain degree of linear correlation in two variables.And | r | linear relationship is closer between 1, two variable；| r | closer to
0, represent that the linear correlation of two variables is weaker.
Data memory module is used to the basic parameter that the detector that signal detection module transmission comes exports pulse being stored in number
Data processing module is sent to according to storehouse, and by basic parameter data；
Human-computer interaction module is used to receive the type photodetector of input, detector design parameter, particle types characteristic, transmitting
Distance, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, and transmit data to data processing module；
Data processing module is used for the data for sending data memory module and human-computer interaction module by Monte Carlo
Algorithm is handled, and produces digitized output signal, and transfer signals to waveform generating module；
Specifically, type photodetector, the detector of data processing module reception human-computer interaction module reception input simultaneously are set
Parameter, particle types characteristic, transmitting range, attenuation medium, detection angle, signal output amplitude and signal to noise ratio are counted, with reference to data
The essential information for the detector pulse that memory module transmission comes, can be generated under correspondence parameter by Monte Carlo calculations emulation
Detector pulse data, and by burst data transfers to waveform generating module；
The digitized signal that waveform generating module is used to produce data processing module is converted to corresponding nuclear detector
Analog signal output, so that output detector impulse waveform, the waveform can be external to the design that nuclear detection instrument carries out instrument
With test.
It is preferred that, nuclear detector signal imitation device also includes remote control interface module, remote control interface module point
It is not connected with analog acquisition module, data memory module and human-computer interaction module, remote control interface module is used to control mould
Intend the opening and closing of acquisition module, the detector information of collection is subjected to remote transmission and people is realized in long-range mode
Machine is interacted, and parameter information is input in human-computer interaction module.
Specifically, remote control interface module controls the unlatching of analog acquisition module by being connected with analog acquisition module
And closing, realize during using radioactive source acquisition pulse, away from radioactive source, reduce absorption of human body radiation
Dosage；Remote control interface module can remotely be passed the detector information of collection by being connected with data memory module
It is defeated；Remote control interface module can realize man-machine interaction in long-range mode, will join by being connected with human-computer interaction module
Number information is input in the device.
A kind of analogy method of described nuclear detector signal imitation device, comprises the following steps：
S1, the pulse signal produced by analog acquisition module collection detector, pass through signal analysis module and extract pulse
The basic parameter of signal, and by basic parameter deposit database storage module storage, signal is examined in database storage module storage
The basic parameter deposit database of the detector output pulse of module transfer is surveyed, and basic parameter data are sent at data
Manage module；
S2, by human-computer interaction module receive input type photodetector, detector design parameter, particle types characteristic,
Transmitting range, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, and transmit data to data processing module；
S3, data processing module receive human-computer interaction module and receive the type photodetector of input, detector design ginseng simultaneously
Number, particle types characteristic, transmitting range, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, with reference to data storage
The essential information for the detector pulse that module transfer comes, the detector arteries and veins under generation different parameters is emulated by Monte Carlo calculations
Rush data, and by burst data transfers to waveform generating module；
The digitized signal that data processing module is produced is converted to corresponding nuclear detector mould by S4, waveform generating module
Intend signal output.So as to output detector impulse waveform, the waveform can be external to nuclear detection instrument carry out the design of instrument with
Test.
As described above, the present invention can be realized preferably.
Claims (2)
1. a kind of nuclear detector signal imitation device, it is characterised in that including analog acquisition module, signal detection module, data
Memory module, human-computer interaction module, data processing module and waveform generating module；
Analog acquisition module has been used for the collection of the pulse signal of twin detector generation, and transfers data to signal detection mould
Block；
Signal detection module is used for the basic parameter that pulse is exported by signal Recognition Algorithm recognition detector, and by the base of signal
This information transfer is stored to data memory module；
Data memory module is used to the basic parameter that the detector that signal detection module transmission comes exports pulse being stored in database,
And basic parameter data are sent to data processing module；
Human-computer interaction module be used for receive input type photodetector, detector design parameter, particle types characteristic, launch away from
From, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, and transmit data to data processing module；
The data that data processing module is used to send data memory module and human-computer interaction module pass through Monte carlo algorithm
Handled, produce digitized output signal, and transfer signals to waveform generating module；
The pulse signal that detector is produced is gathered by analog acquisition module, the base of pulse signal is extracted by signal analysis module
This parameter, and by basic parameter deposit database storage module storage, database storage module storage passes signal detection module
The basic parameter deposit database of defeated next detector output pulse, and basic parameter data are sent to data processing module；
By human-computer interaction module receive input type photodetector, detector design parameter, particle types characteristic, launch away from
From, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, and transmit data to data processing module；
Data processing module receives the type photodetector, detector design parameter, particle that human-computer interaction module receives input simultaneously
Similar properties, transmitting range, attenuation medium, detection angle, signal output amplitude and signal to noise ratio, with reference to data memory module transmission
The essential information of the detector pulse come, the detector pulse data under generation different parameters is emulated by Monte Carlo calculations,
And by burst data transfers to waveform generating module；
The digitized signal that data processing module is produced is converted to corresponding nuclear detector analog signal by waveform generating module
Output.
2. a kind of nuclear detector signal imitation device according to claim 1, it is characterised in that also connect including remote control
Mouth mold block, remote control interface module is used to control the opening and closing of analog acquisition module, enters the detector information of collection
Row remote transmission and man-machine interaction is realized in long-range mode, parameter information is input in human-computer interaction module.
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| CN110009988A (en) * | 2019-04-26 | 2019-07-12 | 安徽核芯电子科技有限公司 | A kind of radiographic source and detector system simulator |
| CN111553111B (en) * | 2020-04-30 | 2023-03-28 | 成都航空职业技术学院 | Digital imitation nuclear signal generator based on MCNP |
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| CN100350269C (en) * | 2002-03-22 | 2007-11-21 | 通用电气公司 | Instrumentation package and integrated radiation detector |
| CN201622351U (en) * | 2009-11-18 | 2010-11-03 | 成都理工大学 | Nuclear signal random characteristic simulator |
| CN102073060B (en) * | 2009-11-24 | 2013-01-23 | 成都理工大学 | Simulation method for random properties of nuclear signals |
| CN102916683B (en) * | 2012-10-18 | 2016-09-14 | 成都理工大学 | A kind of Parameter-adjustablenuclear nuclear pulse simulation method |
| CN203825414U (en) * | 2014-04-15 | 2014-09-10 | 东华理工大学 | Nuclear pulse signal acquiring, storing, and replaying apparatus |
| CN104316954B (en) * | 2014-09-28 | 2017-01-11 | 中国石油大学(华东) | Nuclear physics experiment simulation system and method for carrying out energy spectrum measurement experiment and intensity measurement experiment by using the nuclear physics experiment simulation system |
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