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A method for neutron radiation environmental monitoring using sram memory

An environmental monitoring and memory technology, applied in the field of radiation detection, can solve the problems of large measurement errors and radioactivity, and achieve the effects of easy implementation, low cost and high measurement accuracy

Active Publication Date: 2018-06-29
NORTHWEST INST OF NUCLEAR TECH
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  • Description
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Problems solved by technology

[0004] In order to solve the technical problem of large measurement error and radioactivity in the existing neutron radiation parameter measurement method under low fluence conditions, the present invention provides a method for neutron radiation environment monitoring using SRAM memory

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  • A method for neutron radiation environmental monitoring using sram memory
  • A method for neutron radiation environmental monitoring using sram memory
  • A method for neutron radiation environmental monitoring using sram memory

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Embodiment Construction

[0026] The single event effect is the ionizing radiation damage effect caused by the interaction of a single ray particle with the sensitive area of ​​the microelectronic device. The single event effect can cause the stored data of the digital circuit to flip and cause the electronic system to malfunction. With the improvement of semiconductor process integration, the characteristic process dimensions of CMOS process integrated circuits have been continuously reduced, and they have become more and more sensitive to single event effects. Although the single event effect has a serious impact on the reliability of the electronic system, because the single event effect is a random effect, its linear and thresholdless effect characteristics can be used to monitor the particle beam in the radiation environment.

[0027] According to the characteristics of the single event effect, it can be roughly divided into two categories: non-destructive and destructive. The former is called the so...

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Abstract

The invention belongs to the field of radiation detection and relates to a method for monitoring the neutron radiation environment by using SRAM memorizers. The method includes the following steps that 1, neutron radiation calibration is conducted on SRAM memorizers different in types respectively, and a relation curve of the data flipping number and the neutron fluence are drawn; 2, the N type SRAM memorizer with the data flipping number keeping a linear relation with the neutron fluence is screened out, and the slope of the fitting curve serves as the neutron single ion effect flipping section of the N type SRAM memorizer; 3, the N type SRAM memorizer is placed in a to-be-monitored neutron radiation environment, and a relation curve of the data flipping number and the neutron fluence is drawn. According to the method, the linear and non-threshold characteristics of the neutron single ion flipping effects of the SRAM memorizers are made use of, neutron fluence monitoring in a reactor, a neutron accelerator and other neutron radiation environments is achieved, and experimental results show that the method can still maintain high measurement when the neutron fluence is very low.

Description

Technical field [0001] The invention belongs to the field of radiation detection and relates to a method for monitoring the neutron radiation environment by using SRAM memory. Background technique [0002] The neutron radiation environment is generally generated by reactors, accelerators and other facilities. The monitoring of the neutron radiation environment is one of the necessary means to study the performance of nuclear devices. The monitoring of the neutron radiation environment can be used to analyze whether the operation of nuclear facilities is stable; The measurement of the neutron radiation environment is very important for the application of nuclear technology in the use of the neutron radiation environment. The accuracy of the neutron radiation parameter measurement is an important prerequisite for relevant research. [0003] At present, the measurement of neutron radiation parameters such as reactors and neutron accelerators usually adopts methods such as activated fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T3/08G11C11/413
CPCG01T3/08G11C11/413
Inventor 陈伟刘岩郭晓强杨善潮齐超
Owner NORTHWEST INST OF NUCLEAR TECH
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