CN-121741805-B - Regional radiation monitor and ionizing radiation monitoring method

CN121741805BCN 121741805 BCN121741805 BCN 121741805BCN-121741805-B

Abstract

The invention relates to the technical field of ionizing radiation measurement, in particular to a regional radiation monitor and an ionizing radiation monitoring method, comprising the following steps: the method comprises the steps of obtaining a radiation energy value, an environment temperature value and an environment humidity value of each monitoring point in a radiation monitoring area at each sampling time, determining a radiation level and a radiation energy fluctuation factor of each monitoring point by determining the relative radiation energy value of each monitoring point at each sampling time, further determining the radiation level of a monitoring area corresponding to each monitoring point, clustering monitoring areas corresponding to all monitoring points according to the difference between the radiation levels of the monitoring areas corresponding to any two monitoring points, obtaining a plurality of radiation cluster areas, obtaining the radiation hazard degree of each radiation cluster area, and performing risk division on each radiation cluster area. According to the invention, the effectiveness and the accuracy of radiation monitoring are improved by accurately dividing the risk of each monitoring area.

Inventors

SHAO YAHUI
LIANG WANSHENG
LIU JING

Assignees

陕西正泽生物技术有限公司

Dates

Publication Date: 20260508
Application Date: 20260226

Claims (5)

1. A method of monitoring regional ionizing radiation, the method comprising the steps of: acquiring a radiation energy value, an environment temperature value and an environment humidity value of each monitoring point in a radiation monitoring area at each sampling time, wherein each monitoring point corresponds to one monitoring area; Determining the relative radiant energy value of each monitoring point at each sampling time according to the radiant energy value, the environmental temperature value and the environmental humidity value of each monitoring point at each sampling time; Determining the radiation energy fluctuation factor of each monitoring point according to the local extremum in the relative radiation energy values of each monitoring point at all sampling moments; Clustering the monitoring areas corresponding to all the monitoring points according to the difference between the radiation levels of the monitoring areas corresponding to any two monitoring points to obtain a plurality of radiation cluster areas; determining the radiation risk degree of each radiation cluster area according to the radiation levels and the areas of the monitoring areas corresponding to all monitoring points in each radiation cluster area; the method for determining the radiation level of each monitoring point comprises the following specific steps: Calculate the first The monitoring points are at A normalized value obtained by subtracting a difference value of a preset radiation energy relative to a threshold value from a relative radiation energy value at each sampling time point The monitoring points are at Calculating the first difference value at each sampling time The average value of the first difference values of the monitoring points at all sampling moments is used as a first average value; Calculate the first The average value of the relative radiant energy values of the monitoring points at all sampling moments is taken as the first Counting the maximum value in the second average value of all the monitoring points as the maximum threshold value, and calculating the maximum threshold value to subtract the first value Inversely proportional normalized values of differences of second average values of the monitoring points are used as second differences; calculating the product of the first average value and the second difference value as the first Radiation levels of the individual monitoring points; The method for determining the radiant energy fluctuation factor of each monitoring point comprises the following specific steps: Acquisition of the first order derivative method Calculating the average value of the absolute values of the difference values of the relative radiation energy values corresponding to all the two adjacent local extrema as a third average value, and calculating the average value of the time intervals of the sampling moments corresponding to all the two adjacent local extrema as a fourth average value; Taking the ratio of the third mean value to the fourth mean value as a third mean value Radiant energy fluctuation factors of the monitoring points; The method for determining the radiation level of the monitoring area corresponding to each monitoring point comprises the following specific steps: Will be the first Radiation level and first monitoring point Normalized value of product of radiant energy fluctuation factors of each monitoring point as the first The radiation level of the monitoring area corresponding to each monitoring point.
2. A method of regional ionizing radiation monitoring according to claim 1, wherein said determining the relative radiant energy value of each monitoring point at each sampling instant comprises the specific steps of: Calculate the first The monitoring points are at The ratio of the ambient temperature value to the ambient humidity value at each sampling time is taken as a first ratio, and the inverse ratio normalization value and the first ratio of the first ratio are calculated The monitoring points are at The product of the radiant energy values at the sampling instants as the first The monitoring points are at The relative radiant energy values at the individual sampling instants.
3. A method of monitoring regional ionizing radiation according to claim 1, wherein said determining the radiation exposure risk level of each of the radiating cluster regions comprises the steps of: Calculate the first Taking the average value of the radiation levels of the monitoring areas corresponding to all the monitoring points in the radiation cluster areas as a fifth average value, and combining the fifth average value with the fifth average value Normalized value of product of total area of each radiation cluster area as the first The degree of radiation exposure risk of the individual radiation cluster areas.
4. A method of regional ionizing radiation monitoring according to claim 3, wherein the risk classification of each of the radiating tuft regions comprises the specific steps of: When the first is When the radiation danger degree of each radiation cluster area is more than or equal to a preset first threshold value, the first radiation cluster area is irradiated with the first radiation A plurality of radiation cluster regions, denoted as high risk regions; When the first is When the radiation hazard level of the radiation cluster areas is smaller than a preset first threshold value and larger than a preset second threshold value, the first radiation cluster areas are irradiated with radiation A plurality of radiation cluster regions, denoted as risk regions; When the first is When the radiation hazard level of the radiation cluster area is less than or equal to a preset second threshold value, the first radiation cluster area is The radiation cluster areas, denoted as low risk areas.
5. A regional radiation monitor employing a regional ionising radiation monitoring method as claimed in any one of claims 1 to 4, comprising the following modules: the system comprises a data acquisition module, a radiation monitoring module and a radiation monitoring module, wherein the data acquisition module is used for acquiring a radiation energy value, an environment temperature value and an environment humidity value of each monitoring point in a radiation monitoring area at each sampling time; The radiation level determining module is used for determining the relative radiation energy value of each monitoring point at each sampling time according to the radiation energy value, the environment temperature value and the environment humidity value of each monitoring point at each sampling time; The radiation level determining module is used for determining the radiation energy fluctuation factor of each monitoring point according to the local extremum in the relative radiation energy values of each monitoring point at all sampling moments; The risk classification module is used for clustering the monitoring areas corresponding to all the monitoring points according to the difference between the radiation levels of the monitoring areas corresponding to any two monitoring points to obtain a plurality of radiation cluster areas, determining the radiation risk degree of each radiation cluster area according to the radiation levels and the areas of the monitoring areas corresponding to all the monitoring points in each radiation cluster area, and performing risk classification on each radiation cluster area according to the radiation risk degree of each radiation cluster area.

Description

Regional radiation monitor and ionizing radiation monitoring method Technical Field The invention relates to the technical field of ionizing radiation measurement, in particular to a regional radiation monitor and an ionizing radiation monitoring method. Background Regional radiation monitors are devices for monitoring and measuring radiation levels in specific areas, and are commonly used in nuclear power plants, radiology sites, medical institutions (e.g., radiotherapy rooms), environmental monitoring stations, etc. to ensure the safety of the environment and personnel. Then it is an important process to locate multiple radiation monitors in an area to determine radiation levels at different locations, and real-time monitoring and data analysis can quickly identify radiation risk, protecting public health and safety. Currently, when monitoring ionizing radiation conditions of different areas through an area radiation monitor, the radiation hazard degrees of the corresponding areas are generally monitored through analyzing the real-time radiation energy intensity, but because certain low-radiation areas may have irregular sudden high-radiation events, the sudden high-radiation events occupy less area on the scale of the whole monitoring time, the existing evaluation method may not identify the areas as high-risk areas, thereby causing inaccurate area radiation detection and endangering public health. Disclosure of Invention The invention provides a regional radiation monitor and an ionization radiation monitoring method, which are used for solving the existing problems. The invention relates to a regional radiation monitor and an ionization radiation monitoring method, which adopt the following technical scheme: an embodiment of the present invention provides a method of monitoring regional ionizing radiation, the method comprising the steps of: acquiring a radiation energy value, an environment temperature value and an environment humidity value of each monitoring point in a radiation monitoring area at each sampling time, wherein each monitoring point corresponds to one monitoring area; Determining the relative radiant energy value of each monitoring point at each sampling time according to the radiant energy value, the environmental temperature value and the environmental humidity value of each monitoring point at each sampling time; Determining the radiation energy fluctuation factor of each monitoring point according to the local extremum in the relative radiation energy values of each monitoring point at all sampling moments; The method comprises the steps of carrying out detection on the radiation levels of monitoring areas corresponding to any two monitoring points, carrying out clustering on the monitoring areas corresponding to all the monitoring points according to the difference between the radiation levels of the monitoring areas corresponding to any two monitoring points to obtain a plurality of radiation cluster areas, determining the radiation risk degree of each radiation cluster area according to the radiation levels and the areas of the monitoring areas corresponding to all the monitoring points in each radiation cluster area, and carrying out risk division on each radiation cluster area according to the radiation risk degree of each radiation cluster area. Further, the determining the relative radiant energy value of each monitoring point at each sampling time comprises the following specific steps: Calculate the first The monitoring points are atThe ratio of the ambient temperature value to the ambient humidity value at each sampling time is taken as a first ratio, and the inverse ratio normalization value and the first ratio of the first ratio are calculatedThe monitoring points are atThe product of the radiant energy values at the sampling instants as the firstThe monitoring points are atThe relative radiant energy values at the individual sampling instants. Further, the determining the radiation level of each monitoring point comprises the following specific steps: Calculate the first The monitoring points are atA normalized value obtained by subtracting a difference value of a preset radiation energy relative to a threshold value from a relative radiation energy value at each sampling time pointThe monitoring points are atCalculating the first difference value at each sampling timeThe average value of the first difference values of the monitoring points at all sampling moments is used as a first average value; Calculate the first The average value of the relative radiant energy values of the monitoring points at all sampling moments is taken as the firstCounting the maximum value in the second average value of all the monitoring points as the maximum threshold value, and calculating the maximum threshold value to subtract the first valueInversely proportional normalized values of differences of second average values of the monitoring points are used as second differences; determini