Imitated nuclear pulse generation device and method

A technology of a generating device and a generating method, applied in the field of single photon detection, can solve the problems of low reliability, poor randomness, complicated subsequent processing of the system, etc., and achieve the effects of good amplitude randomness, reduced complexity, and good time randomness.

Active Publication Date: 2019-01-18
NANCHANG UNIV
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Problems solved by technology

[0005] In order to solve the existing technical problems such as low generation rate, poor randomness, low reliability, poor stability, complex system or need for a large amount of follow-up processing of the existin

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  • Imitated nuclear pulse generation device and method
  • Imitated nuclear pulse generation device and method
  • Imitated nuclear pulse generation device and method

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Embodiment Construction

[0047] The purpose of the present invention is to propose a method for generating pseudo-nuclear pulses with good randomness and adjustable speed. The output imitation nuclear pulse has high precision, good amplitude and time randomness, and adjustable rate. The invention overcomes the shortcomings of weak random number generation law and poor operability in the existing method for generating imitation nuclear pulses. The time interval of the discrete single-photon pulse output by the single-photon detector obeys the exponential distribution, and the number of photons in the equal time interval obeys the Poisson distribution. The single-photon pulse signal is input into the quantum true random number extractor to generate uniformly distributed eight-bit quantum true random numbers, and the eight-bit quantum true random numbers are used to generate eight-bit Gaussian random numbers and stored in eight-bit registers. The digitized exponential waveform data with a fixed amplitud...

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Abstract

The invention relates to an imitated nuclear pulse generation device and method. The device comprises a single photon source, a single photon detector, a quantum true random number extractor, a Gaussian random number generator, an eight-bit register, an exponential waveform data storage, a multiplying unit, a conversion start controller and a digital-analog converter (DAC). The quantum true randomnumber extractor is connected with the output end of the single photon detector for extracting uniformly distributed random numbers; the Gaussian random number generator is connected with the outputend of the quantum true random number extractor; generated Gaussian random numbers are stored into the eight-bit register; the Gaussian random number generator comprises four read-only memories and the multiplying unit. According to the device and method provided by the invention, the arrival time interval of the single photon pulse is used for generating imitated nuclear pulse time in compliancewith exponential distribution characteristics, and the uniformly distributed random numbers are extracted by using the single photon pulse to generate the Gaussian random numbers to serve as an imitated nuclear pulse amplitude. The imitated nuclear pulse generation method provided by the invention is simple to implement, high in flexibility, good in randomness and continuous.

Description

[0001] The invention relates to the technical field of single photon detection, and specifically discloses a nuclear imitation pulse generating device and a method thereof. Background technique [0002] The simulated nuclear pulse can simulate the time and amplitude characteristics of nuclear signals, and is widely used in major nuclear signal research laboratories, factories, and geological surveys. The simulated nuclear pulse signal can be used to calibrate various nuclear particle detection and energy spectrum equipment, and provide a signal source for the development of nuclear signal processing systems. The decay of radionuclides is random in time, and the statistical characteristics of the nuclear energy level make the rays produced by the decay also have randomness in energy, which is specifically manifested in the pulse corresponding to the nuclear radiation of a single energy, which basically conforms to the Gaussian distribution in amplitude , which conforms to an ex...

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Application Information

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IPC IPC(8): G01T7/00
CPCG01T7/005
Inventor 鄢秋荣洪珠阎科利肖轶平胡杰
Owner NANCHANG UNIV
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