KR20180047575A - Apparatus and method for 2 dimension radiation map - Google Patents

Abstract

The present invention relates to an apparatus and a method for two-dimensional radiation mapping. In particular, by extracting and providing a radiation amount of a radiation management section, a safe evacuation route for an operator can be secured in case of an urgent situation due to radiation. To this end, the apparatus for two-dimensional radiation mapping comprises a radiation amount measuring portion, a calculation portion, a storage portion, and an output portion.

Description

[0001] Apparatus and method for two-dimensional radiation map [0002]

The present invention relates to a two-dimensional radiation dose mapping apparatus and method, and more particularly, to a radiation dose management apparatus and method for extracting and providing a radiation dose of a radiation management area, And more particularly, to an apparatus and method for mapping a map.

As the industrial structure based on radiation use and nuclear energy changes drastically, it is essential to continuously develop the technology to maintain competitiveness and continuous growth in the domestic radiation and nuclear power industry.

With the development of the radiation industry, radiation accidents due to the leakage of radiation materials have increased, so it is obligatory for the workers who manage the radiation materials or the radiation meters to use the radiation detection apparatus for measuring the radiation dose at the work site.

In general, radiation accidents caused by leakage of radioactive materials lead to fatal radioactive skin irritation, which threatens human life.

Such radiation-induced skin injury is more likely to be harmed because the radiation worker or radiographer working in the field does not recognize the radiation exposure.

Therefore, it is necessary that the radiation worker or the radiation measurer always measures the radiation dose by carrying the radiation dosimeter which is the radiation measuring apparatus which measures the radiation dose of the field, and such a radiation dosimeter includes a survey meter or a personal exposure dose meter personal alarm dosimeter).

Typical radiation dosimeters generally include a radiation detection device for detecting radiation emitted from a radiation source, and a body for counting and indicating the amount of radiation detected by the radiation detection device.

As a method of detecting radiation, there are various methods using ionizing action of radiation, excitation action, luminescent action, photosensitive action, etc., and the detecting device and the detecting method are used in accordance with the kind of radiation to be measured , And a radiation dose measuring apparatus and a measuring apparatus for analyzing nuclides are also used.

On the other hand, it is necessary to obtain information on the radiation dose of the working area in case of an emergency caused by radiation in the radiation management area or the radiation working area, in order to protect the worker and safely depart from the work place, but in general, And only the radiation dose at a specific point is measured, so that there is a problem in that a worker can not secure a departure line that can safely escape.

Korean Patent No. 1337800 (issued on December 06, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a detachment line that can safely escape from the radiation exposure of an operator when an emergency occurs due to radiation in a radiation management area or a radiation working area, .

According to an aspect of the present invention, there is provided a two-dimensional radiation dose mapping method, comprising: setting a zone partitioning parameter for dividing a radiation management zone into a plurality of zones; A step S2 of dividing the radiation management area, and a step S3 of setting the number of times of measurement, which is determined by the radiation dose measuring part, of the points divided by the zone dividing variable.

The method may further include setting (S4) a measurement point at which the radiation dose is to be detected using the radiation dose measurement unit among the divided points corresponding to the set measurement times, using the radiation dose measurement unit (S6) of calculating a radiation dose at the calculation unit with respect to a remaining extraction point of the radiation management zone based on the detected measurement information (S5).

(S7) of generating a two-dimensional radiation dose map by the calculation unit on the basis of the radiation dose measurement information detected by the radiation dose measurement unit and the radiation dose information calculated by the calculation unit, and a step (Step S8).

As described above, the two-dimensional radiation dose mapping apparatus and method according to the present invention extracts and provides the radiation dose of the radiation management area in a short period of time in case of an emergency caused by radiation, so that the worker can safely exit the radiation management area So that it is possible to prevent damage to human life caused by radiation exposure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a two-dimensional radiation dose map according to an embodiment of the present invention; FIG.
FIG. 2 is a diagram illustrating a radiation dose extraction point for extracting a radiation dose through a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention.
FIG. 3 is a view showing a two-dimensional radiation dose map to which a radiation dose is applied through a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention.
4 is a block diagram illustrating an operation unit of a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention.
FIG. 5 is a diagram showing a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention applied to a domestic nuclear power plant.
FIG. 6 is a flowchart illustrating a two-dimensional radiation dose mapping method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms " part, "" ... "," module ", and the like described in the specification mean units for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software .

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings.

Like reference symbols in the drawings denote like elements.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a two-dimensional radiation dose map according to an embodiment of the present invention; FIG.

As shown in FIG. 1, the apparatus for mapping a two-dimensional radiation dose map according to the present invention may include a radiation dose measuring unit 100, an operation unit 200, a storage unit 300, and an output unit 400.

The radiation dose measuring unit 100 measures a radiation dose at a designated position in the radiation management area or the radiation working area.

The calculating unit 200 may divide the radiation management area or the radiation working area into a predetermined number of pieces and may control the radiation amount measuring part 100 to detect the radiation amount of a predetermined measurement point 20, Calculates the radiation dose for all remaining extraction points (10) that are not measured in the radiation management area or the radiation working area based on the radiation dose information of the measurement point (Point) 20, .

The storage unit 300 stores radiation dose information measured by the radiation dose measuring unit 100 and operation information calculated by the operation unit 200.

Further, the output unit 400 outputs a radiation dose map generated by the arithmetic unit 200.

FIG. 6 is a flowchart illustrating a two-dimensional radiation dose mapping method according to an embodiment of the present invention.

As shown in FIG. 6, the two-dimensional radiation dose mapping method of the present invention includes the steps of (S1) setting a zone partitioning parameter for dividing a radiation management zone into several zones, A step S2 of dividing the management area and a step S3 of setting a number of times of measuring the number of the points divided by the zone dividing variable through the radiation dose measuring part 100 .

The method may further include setting (S4) a measurement point (20) for detecting a radiation dose using the radiation dose measuring unit (100) from among the divided points corresponding to the set measurement times, (S5) of detecting a radiation dose using the radiation dose measuring unit (100) with respect to the remaining radiation points (10) of the radiation management area based on the detected measurement information, (Step S6).

The step S7 of the arithmetic part 200 to generate the two-dimensional radiation amount map based on the radiation amount measurement information detected by the radiation amount measuring part 100 and the radiation amount information calculated by the calculating part 200, (S8) of outputting the prepared radiation dose map through the radiation dose map (400).

This will be described in detail as follows.

It is also necessary to identify the radiation dose in the radiation management area or the radiation working area, including the working area in the nuclear power plant, in order to secure the worker's safe departure line for the protection of the ongoing worker or in case of emergency due to radiation leakage.

In order to obtain the radiation dose information of the radiation management area, the radiation dose measurement information should be detected at all positions of the radiation management area through the radiation dose measuring part 100. However, this is because the excessive amount of time impossible.

The present invention allows a worker to safely remove radiation from radiation in a radiation management area by extracting and providing radiation dose information within a short period of time without requiring an excessive amount of time for an operator to use immediately in case of an emergency caused by radiation.

FIG. 2 is a diagram illustrating a radiation dose extraction point for extracting a radiation dose through a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention.

The left side of FIG. 2 is a two-dimensional dose map showing radiation dose extraction points 10 for extracting a radiation dose in the radiation management area, and the right side is a radiation dose extraction point 10 connecting the radiation dose extraction points 10 on the two- It is a two-dimensional dose map that divides the management area.

It is possible to determine how many radiation dose extraction points 10 are to be set in order to extract the radiation dose in the radiation management area (S1). The radiation dose extraction point 10 may be determined by a row direction zone partitioning parameter that divides the radiation management zone in the row direction and a column direction partitioning parameter that divides the radiation management zone in the column direction.

Although it is possible to extract more accurate radiation dose information by dividing the radiation management area by setting the zone partitioning parameter to a large value, a lot of extraction time may be required in proportion thereto. Therefore, it is desirable to set the zone partitioning parameter in consideration of the size of the radiation management zone and the number of expected radiation sources.

As shown in FIG. 2, the radiation management area may be divided based on the set zone partitioning parameter (S2).

In addition, the number of measurements for detecting the radiation dose can be set by using the radiation dose measuring unit 100 among the radiation dose extracting points 10 generated by dividing based on the zone dividing variable (S3).

In addition, a measurement point 20 for detecting radiation using the radiation dose measuring unit 100 may be set in the radiation dose extracting point 10 according to the number of times of measurement (S4). The radiation dose measuring unit 100 detects the radiation dose of the set measurement point 20.

Here, the number of times of measurement and the measurement point 20 may be preset in the storage unit 300 based on information on the radiation management area and information on the expected radiation source.

The calculation unit 200 may calculate the radiation dose for the remaining radiation dose extraction point 10 of the radiation management area using the radiation dose information measured through the radiation dose measurement unit 100. [

The radiation dose for the radiation dose extraction point 10 can be calculated from the following equations (1) and (2).

[Equation 1]

M = (Vi + 1 - Vi) / E

Here, M is the increment value of the radiation dose per grid in the two-dimensional dose map, Vi and Vi + 1 are the radiation dose at the i-th measurement point 20 and (i + 1) E denotes the number of grids between the i-th measurement point 20 and the (i + 1) th measurement point 20 in the row direction in the two-dimensional dose map .

That is, E means the number of grids between the measurement point 20 at which Vi is measured and the measurement point 20 at which Vi + 1 is measured in the two-dimensional dose map of FIG.

&Quot; (2) "

Vi + k = Vi + M * k

Here, k is a grid value changed from Vi to the row direction in the two-dimensional dose map, and Vi + k is an extraction point 10 whose grid is changed by k from the position of Vi detected through the radiation dose measuring unit 100, Of the radiation dose.

The radiation dose can be calculated for the other remaining extraction points 10, and the radiation dose can also be calculated for the column direction in the same manner.

FIG. 3 is a view showing a two-dimensional radiation dose map to which a radiation dose is applied through a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention.

3, a two-dimensional radiation dose map can be generated by applying the radiation dose measured through the radiation dose measurement unit 100 and the radiation dose calculated through the calculation unit 200 to the two-dimensional radiation dose map shown in FIG. have.

At least three measurement points (20) are required to create a two-dimensional radiation dose map.

4 is a block diagram illustrating an operation unit of a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention. 5 is a diagram showing a two-dimensional radiation dose mapping apparatus according to an embodiment of the present invention applied to a domestic nuclear power plant.

As shown in FIG. 5, when the radiation leakage occurs by applying the two-dimensional radiation dose mapping apparatus according to the present invention to a position where radiation leakage can occur, the worker moves along a safe travel path with a relatively small radiation dose It is possible to come out.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

10: point 20: point of measurement
100: radiation dose measuring unit 200:
300: storage unit 400: output unit

Claims (3)

A two-dimensional radiation dose map device for extracting and providing a radiation dose for a radiation management area,
A radiation dose measuring unit for measuring a radiation dose at a predetermined position in the radiation management area;
An extraction point for extracting the radiation dose on the basis of the divided region and a measurement point for detecting the radiation dose by controlling the radiation dose measurement unit, Calculating a radiation dose for the extraction point using the radiation dose information detected by the radiation dose measuring unit and generating a radiation dose map based on the extracted radiation dose information;
A storage unit for storing the radiation dose information measured by the radiation dose measuring unit and the calculation information calculated by the calculation unit; And
And an output unit for outputting a radiation dose map generated by the calculation unit.
The method according to claim 1,
Wherein the calculation unit calculates the radiation dose of the extraction point according to the following equations (1) and (2).
[Equation 1]
M = (Vi + 1 - Vi) / E
(Where M is the increment of radiation dose per grid in the two-dimensional dose map, Vi and Vi + 1 are the detection values of the i-th measurement point and the (i + 1) E is the number of grids between the i th measurement point and the (i + 1) th measurement point in the row direction in the two-dimensional dose map)
&Quot; (2) "
Vi + k = Vi + M * k
(Where k is a grid value changed from the Vi to the row direction in the two-dimensional dose map, and Vi + k is a radiation dose at an extraction point where the grid is changed by k from the position of Vi detected through the radiation amount measurement unit)
A two-dimensional radiation dose mapping method for extracting and providing a radiation dose to a radiation management area,
Setting a zoning parameter for how many zones the radiation management zone is to be divided into;
Dividing the radiation management area based on the zoning parameter;
Setting a number of measurement times for determining how many of the points divided by the zone partitioning parameter are to be measured through the radiation dose measuring unit;
Setting a measurement point at which the radiation dose is to be detected using the radiation dose measurement unit among the divided points corresponding to the set measurement times;
Detecting a radiation dose using the radiation dose measuring unit for the set measurement point;
Computing a radiation dose for an extraction point for extracting a radiation dose in a radiation management area based on the detected measurement information;
Generating a two-dimensional radiation dose map by the calculation unit on the basis of the radiation dose measurement information detected by the radiation dose measurement unit and the radiation dose information calculated by the calculation unit; And
And outputting the prepared radiation dose map.

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