TWI606251B - Mesurement system, calibration and mesurement method for bulk radiation wastes - Google Patents

Description

Measurement system, calibration method and measurement method for large-scale objects of radioactive waste

The invention relates to a measuring system, a calibration method and a measuring method, in particular to a mobile kama spectrum analyzer with on-site direct measurement and a plurality of radioactive wastes of various reference model cube reference materials or multiple pieces. The measurement system of the object, the calibration method of the large-scale object of the radioactive waste, and the measurement method of the large-scale object of the radioactive waste.

In the conventional technology, the large-scale object of radioactive waste needs to be sent to the fixed-site container-type detection system for measuring activity, and the container-type detection system equipment of multiple large-scale scintillator detectors is not only expensive, but also requires large objects. Meets the volume of the container inspection system. Therefore, the above method has a volume limitation, or it needs to be cut into a sub-tank or a box, and centralized batch handling is carried out to measure in a container-type detection system. In addition, the container-type detection system only measures the radioactivity specific activity (Bq/kg) and cannot identify the radioactive species. Therefore, the above method is inconvenient when the nuclear facility is actually decommissioned, and it is necessary to purchase a container type detector and a container type detection system.

It is an object of the present invention to provide a direct use of mobile gamma spectroscopy In-situ gamma spectroscopy, on-site measurement of the surface activity and overall activity of large-scale radioactive waste in order to save the container-type detection system laboratory sent to a fixed location Time and, without the cost of purchasing a container inspection system and providing a place to place.

Another object of the present invention is to provide a method for correcting large-scale objects of radioactive waste, and using a mobile Gamma spectrum analyzer to directly measure the activity of a large object on the site, saving time and cost, and not It is necessary to cut the object and purchase the container type detector and the place. It can be seen that the present invention proposes a method for measuring in the field, which can replace the traditional need to cut large-sized waste articles into the barrel or the box, and batch batching It is inconvenient to carry to the measurement mode in the container laboratory.

It is still another object of the present invention to provide a block-model method for stacking a plurality of individual bucket or box objects into various cube reference materials or a plurality of individual small-area sheet standard source arrangements. Synthesize a large-area sheet-like reference material, simulate the surface or the whole interior of a large-scale object of radioactive waste that is decommissioned by a nuclear facility, and establish a large-scale calibration source for calibration or large area for calibration. Calibration slice-souce, with the built-in description of the measurement activity of the mobile Gamma spectrum analyzer, the geometry of the measured object such as size, volume, shell thickness, weight, material, distance, etc. The parameters are analyzed to obtain the correct surface activity or overall internal activity of the large object.

An embodiment of the present invention provides a measurement system for a large-scale object of radioactive waste, and a measurement system for a large-scale object of radioactive waste includes a calibration component and a mobile Gamma spectrum analyzer. The correcting member includes a plurality of objects, and the plurality of objects are arranged in a correcting member. Mobile The Gamma Spectrum Analyzer consists of a detector and a standard component. The detector is coupled to a standard component. The detector is used to measure the surface activity or overall internal activity of the calibration component. Compare the measured surface activity or overall internal activity of the calibrated component.

An embodiment of the present invention provides a method for correcting a large-scale object of radioactive waste, and a method for correcting a large-scale object of radioactive waste includes the following steps. First, a plurality of objects are provided. Then, a plurality of objects are arranged into a correcting member, wherein the plurality of objects are three-dimensionally stacked into a correcting member, or a plurality of objects are an area-shaped sheet-like body, and the area-like sheet-like bodies are arranged and combined into a large-area sheet-shaped correcting member. .

An embodiment of the present invention provides a method for measuring a large-scale object of radioactive waste, and a method for measuring a large-scale object of radioactive waste includes the following steps. Firstly, a correcting member and a mobile gamma spectroscopy analyzer are provided, wherein the correcting member comprises a plurality of objects, the plurality of objects are stereoscopically stacked into a correcting member, or the plurality of objects are an area-shaped sheet body, each area sheet The morphological arrangement is combined into a large-area sheet-shaped correction member, and the mobile gamma spectroscopy analyzer includes a detector and a standard member. Next, the detector is used to measure the gamma surface activity or the overall internal activity of the calibrating member. The measured horse's surface activity or overall internal activity of the correcting member is compared by the standard component.

Based on the above, the present invention provides a measurement system, a calibration method, and a measurement method for a large-scale object of radioactive waste, and directly uses a mobile Jiama spectrum analyzer to measure the surface of a large-scale object of radioactive waste. Degree and overall activity method. Therefore, it is not necessary to send the container-type detection system laboratory to a fixed place, and it is not necessary to send the extra-sized items to the container-type detection system for measurement. This saves time and saves the purchase of containers. The detection system and the cost of providing the placement.

50‧‧‧Measurement system for large objects of radioactive waste

20‧‧‧Mobile Gamma Spectrum Analyzer

22‧‧‧Detector

24‧‧‧Standard parts

100‧‧‧calibration

110A, 110B‧‧‧ calibration parts

111‧‧‧ objects

120A~120F‧‧‧calibration

121‧‧‧ objects

122‧‧‧First cube

123‧‧‧Second cube

130A~130E‧‧‧Revised parts

131‧‧‧ objects

140‧‧‧calibration

141‧‧‧ objects

S100‧‧‧Method for correcting large-scale objects of radioactive waste

S200‧‧‧Measurement method for large-scale objects of radioactive waste

S110~S120‧‧‧Steps

S210~S230‧‧‧Steps

Figure 1 is a schematic view of a measurement system for a large-scale object of radioactive waste of the present invention.

2A and 2B are respectively schematic views of an embodiment of the correcting member of the present invention.

3A to 3F are respectively schematic views of another embodiment of the correcting member of the present invention.

4A to 4E are respectively schematic views showing still another embodiment of the correcting member of the present invention.

Figure 5 is a schematic view showing still another embodiment of the correcting member of the present invention.

Figure 6 is a schematic view of a further embodiment of the correcting member of the present invention.

Figure 7 is a flow chart showing a method for correcting a large-scale object of radioactive waste according to the present invention.

Figure 8 is a flow chart of a method for measuring a large-scale object of radioactive waste according to the present invention.

The specific embodiments of the present invention are further described below in conjunction with the drawings and embodiments. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention.

Figure 1 is a schematic view of a measurement system for a large-scale object of radioactive waste of the present invention. Please refer to Figure 1.

In the present embodiment, the measurement system 50 for large items of radioactive waste includes a mobile gamma spectrum analyzer 20 and a calibration member 100.

The mobile gamma spectrum analyzer 20 includes a detector 22 and a standard member 24, and the detector 22 is coupled to the standard member 24. The mobile gamma spectrum analyzer 20 can be placed on a mobile cart, and the mobile gamma spectrum analyzer 20 is moved to the measurement site by the mobile cart. The calibrating member 100 of the large object in the field is directly measured. However, the embodiment is not limited thereto. In an embodiment, the mobile gamma spectroscopy analyzer 20 can also be moved by the human hand.

The detector 22 is used to measure the gamma surface activity or the overall internal activity of the calibration member 100. The standard member 24 has parameters of the size, volume, weight, material, and distance of the geometry of the object to be tested (such as the correcting member 100), and compares the measured surface activity of the calibrated member 100 by the standard member 24. Or overall internal activity.

The correcting member 100 includes a plurality of objects, and the plurality of objects are arranged as a correcting member, which will be described below with reference to FIGS. 2A to 6.

2A and 2B are respectively schematic views of an embodiment of the correcting member of the present invention. Please refer to Figures 2A and 2B.

In this embodiment, the correcting members 110A, 110B each include a plurality of objects 111, the plurality of objects 111 are aligned by the capability test activity, and the plurality of objects 111 are stereoscopically stacked into the correcting members 110A, 110B, and the correcting members 110A, 110B Used to correct the uniform distribution of the overall internal activity.

In the case of FIG. 2A, each object 111 is a box-shaped object, and a plurality of box-shaped objects are stacked and arranged in a square shape, and the square body has a length of, for example, 68 cm, the square body has a width of, for example, 68 cm, and the height of the square body is, for example, 68 cm. Therefore, the volume of the cube is 314 L (liter), but this embodiment does not limit the size of the cube, and can be adjusted depending on the actual situation.

In the case of FIG. 2B, each object 111 is a box-shaped object, and a plurality of box-shaped objects are stacked and arranged in a rectangular parallelepiped shape.

It can be seen from the above embodiment that, using the block-model method, a plurality of box-shaped objects aligned by the capability test activity are stacked and arranged into cube correcting members to simulate a square body model and a second block diagram as shown in FIG. 2A. Cuboid model, with a volume of about 320L (liters), The embodiment does not limit the size of the cuboid, and can be adjusted depending on the actual situation.

3A to 3F are respectively schematic views of another embodiment of the correcting member of the present invention. Please refer to Figures 3A and 3F.

In this embodiment, the correcting members 120A-120F include a plurality of objects 121, and the plurality of objects 121 are compared by the capability test activity, and the plurality of objects 121 are stereo-stacked into the correcting members 120A-120F, and the correcting members 120A-120F are used. In order to correct the overall internal activity evenly distributed.

Each of the articles 121 is a barrel-shaped article, for example, a 55-gallon bucket, and a plurality of bucket-shaped articles are stacked in a cubic shape. In the case of FIG. 3A, three bucket-shaped objects are stacked and assembled into a rectangular parallelepiped correcting member 120A. In the third drawing, four bucket-shaped objects are stacked and assembled into a rectangular parallelepiped correcting member 120B, as shown in FIG. 3C. The barrel-shaped objects are stacked and assembled into a rectangular parallelepiped correcting member 120C. It can be seen from the above embodiment that a plurality of barrel-shaped objects aligned by the capability test activity are arranged in a cubic correction piece to simulate a rectangular parallelepiped model as shown in FIG. 3A to FIG. 3C, and the volume is about 1000 L (liters) to 1500 L. (liter).

However, the present embodiment is not limited to the stacked combination of the growth cubes. In other embodiments, in the 3D figure, the four bucket-shaped objects are stacked and assembled into a square-shaped correction member 120D, and in the third E-picture, 6 The barrel-shaped objects are stacked to form a square correcting member 120E. In the 3F view, the eight barrel-shaped objects are stacked and assembled into a square-shaped correcting member 120F, wherein the four barrel-shaped objects 121 are stacked and combined into a first square-shaped body 122, and then The other four bucket-shaped objects are stacked and combined into a second cube 123, and the first cube 122 is stacked on the second cube 123. It can be seen from the above embodiment that a plurality of barrel-shaped objects aligned by the capability test activity are arranged in a cubic correction piece to simulate a cube model as shown in the 3D to 3F, and the volume is about 1200 L (liters) to 2500 L. (liter).

4A to 4E are respectively schematic views of still another embodiment of the correcting member of the present invention. Figure. Please refer to Figures 4A and 4E.

In this embodiment, the correcting members 130A-130E include a plurality of objects 131, and the plurality of objects 131 are compared by the capability test activity, and the plurality of objects 131 are three-dimensionally stacked into the correcting members 130A-130E for correcting the overall internal activities. The degree is evenly distributed.

Each object 131 is a barrel-shaped object, and a plurality of barrel-shaped objects are stacked in a cube to simulate five kinds of cubes (including a cube, a four-cube, a six-cuboid, an octagonal or an eight-cube) barrel type building block. As shown in FIG. 4A, the correcting members 130A are stacked in a square shape. As shown in FIG. 4B, the correcting members 130B are stacked in a quadrangular shape. As shown in FIG. 4C, the correcting members 130C are stacked in a rectangular parallelepiped shape, such as As shown in Fig. 4D, the correcting members 130D are stacked in an eight-square rectangular shape. As shown in Fig. 4E, the correcting members 130E are stacked in an eight-cube shape.

In the above embodiments of FIGS. 2A to 4E, the calibration volum-souce is established by the correction of the modular combination. However, the present invention is not limited thereto, and the fifth Figure and Figure 6 illustrate.

Figure 5 is a schematic view showing still another embodiment of the correcting member of the present invention.

Please refer to Figure 5. In the present embodiment, the correcting member 140 includes a plurality of objects 141, and the plurality of objects 141 are an area-shaped sheet body, and each of the area-shaped sheets 141 conforms to a known key-nuclide Cs-137 and Co-60. Tracing the national radiation standard activity, each area of the sheet-like body 141 is arranged to be combined into a large-area sheet-shaped correcting member 140. For example, as shown in Fig. 5, a sheet-shaped body 141 (length 34 cm, width 34 cm) of six small-area sources forms a large-area source, and the large-area source has a length of 102 cm, and a large area shot. The source correction member 140 has a width of 68 cm.

Through the above configuration, the detector 22 is used to measure the surface of the calibrating member 140. Degree and its wall pollution.

Figure 6 is a schematic view of a further embodiment of the correcting member of the present invention.

Please refer to Figure 6. The correcting member 150 of the embodiment is applied to the surface of various large-sized objects and concrete to establish a correcting member 150 for measuring the surface of the large object and the contamination of the concrete wall.

Figure 7 is a flow chart showing a method for correcting a large-scale object of radioactive waste according to the present invention.

Please refer to Figure 7 first. The method S100 for correcting a large-scale object of radioactive waste of the present embodiment includes the following steps S110 to S120.

Go to step S110 to provide a plurality of objects.

In an embodiment, the articles may be, for example, aligned by a capability test activity, such as a box-type article as shown in Figures 2A and 2B, or a bucket-type article as in Figures 3A-4E.

In an embodiment, the article is, for example, an area sheet. As shown in Fig. 5, each area of the sheet-like body 141 conforms to the known key nuclear species Cs-137 and Co-60 traced to the national radiation standard activity.

The purpose of this embodiment is to verify the on-site measurement of the known key nuclear species Cs-137 and Co-60 trace the national radiation standard activity of the 8 barrels of aqueous solution barrels, and the standard activity measurement results are shown in Table 1, the largest difference key nuclear species Cs -137 is less than 9%, and the key nucleus Co-60 is less than 8%, and its accuracy is within a reasonable range of difference.

Step S120 is performed to arrange the plurality of objects into a correcting member.

In one embodiment, the plurality of objects are three-dimensionally stacked into a correcting member for correcting the uniform distribution of the overall internal activity.

As shown in FIG. 2A and FIG. 2B, each object 111 is a box-shaped object, and the plurality of box-shaped objects are stacked and arranged into a cube (such as FIG. 2A) or a rectangular parallelepiped (such as FIG. 2B) to simulate The 2A is a cube model and the 2B is a cuboid model with a volume of about 320 L (liters).

As shown in FIGS. 3A to 3F, each of the objects 121 is a barrel type article, and the barrel type member 121 is, for example, a 55-gallon drum, and a plurality of barrel-shaped objects are stacked and arranged into a cube. For example, the rectangular parallelepiped model in Figures 3A to 3C has a volume of about 1000 L (liters) to 1500 L (liters), and as in the 3D to 3F cube model, the volume is about 1200 L (liters) to 2500 L (liters).

As shown in Figures 4A to 4E, each of the plurality of barrel-shaped objects is stacked in a cube to simulate five kinds of cubes (including a cube, a four cube, a six cuboid, an eight cuboid or an eight cube). Correction members 130A to 130E.

Table 2, simulation of large objects (aqueous solution) plus horse activity measurement results

The purpose of this embodiment is to verify the activity of the calibration components 130A-130E of five types of barrel-type building blocks of radioactive waste (including a cube, four cubes, six cuboids, eight cuboids or eight cubes) in the field. The results of barrel key nucleus Cs-137 and key nucleus Co-60 are shown in Table 2. The maximum difference is -22% for key nucleus Cs-137 and -23% for key nucleus Co-60. The accuracy is within reasonable range. Inside.

The purpose of this embodiment is to verify the activity of the calibration components 130A-130E of five types of barrel-type building blocks of radioactive waste (including cubes, four cubes, six cuboids, eight cuboids or eight cubes). 3. The maximum difference of cement barrel core Cs-137 is -19%, and its accuracy is within reasonable range.

The purpose of this embodiment is to calculate the actual volume of the barrel of the combination of the radioactive waste correction parts 130A-130E of five kinds of barrel type building blocks (including a cube, four cubes, six cuboids, eight cuboids or eight cubes), and the building blocks. The simulated volume of 1200L~2300L is shown in Table 4. The difference in volume between the five barrel-type building blocks models is -33%.

In one embodiment, the plurality of objects are an area-shaped sheet, and each of the area-like sheets is arranged to be combined into a large-area sheet. As shown in Fig. 5, the sheet-like body 141 (length 34 cm, width 34 cm) of six small-area sources forms a large-area source, and the large-area source has a length of 102 cm, and the correction of the large-area source is as shown in Fig. 5. 140 has a width of 68 cm.

In an application example, as shown in Figure 6. The correcting member 150 of the embodiment is applied to the surface of various large-sized objects and concrete to establish a correcting member 150 for measuring the surface of the large object and the contamination of the concrete wall.

The purpose of this embodiment is to evaluate the back-scattering effect on the surface and wall of large objects, and apply it to the surface of large objects and wall materials of different thicknesses, such as plastic, concrete, and lead materials. The key nuclear energy (about 1250KeV), material, thickness and other factors are small (as shown in Table 5), the maximum differential nuclear species Cs-137 is 3.7%, and the key nuclear species Co-60 is 4.2%, so the invention can be The proposed correcting parts are applied to the surface and concrete of large materials of various materials.

It can be seen from the above that the method S100 for correcting large-scale objects of radioactive waste according to the present embodiment uses a block-model method to stack a plurality of barrel-type or box-shaped objects into calibration pieces of various cubes, or A small area of sheet-like standard source arrangement is combined into a large-area sheet-like calibration piece, so as to simulate the surface or the whole interior of a large-scale object of radioactive waste that is decommissioned by a nuclear facility, and establish a large-volume source for calibration. (calibration volume source) or calibration large area patch source (calibration slice source).

Figure 8 is a flow chart of a method for measuring a large-scale object of radioactive waste according to the present invention.

Please refer to Figure 8 first. The measuring method S200 of the large-scale item of radioactive waste of the present embodiment includes the following steps S210 to S230.

Step S210 is performed to provide a correcting member and a mobile gamma spectroscopy analyzer, wherein the correcting member comprises a plurality of objects, the plurality of objects are stereoscopically stacked into the correcting member, or the plurality of objects are an area sheet Body, each of the area of the sheet-like body is arranged into a large-area sheet of the correcting member, and the mobile Jiama spectrum analyzer comprises a detector and a standard part. The standard has parameters of size, volume, weight, material, and distance of the geometry of the correcting member.

Step S220 is performed, and the detector is used to measure the horse surface activity or the overall internal activity of the correction component.

Step S230 is performed to compare the measured surface activity or the overall internal activity of the calibrated component by the standard component.

In summary, the present invention provides a measurement system, a calibration method, and a measurement method for a large-scale object of radioactive waste, and directly uses a mobile Jiama spectrum analyzer to perform on-site measurement of a large-scale object of radioactive waste. Method of surface activity and overall activity. Therefore, it is not necessary to send the container-type detection system laboratory to a fixed place, and it is not necessary to send the extra-sized items to the container-type detection system for measurement. This saves time and saves the purchase of containers. The detection system and the cost of providing the placement.

In addition, the present invention provides a method for correcting a large-scale object of radioactive waste, which uses a block-model method to stack a plurality of barrel-shaped or box-shaped objects into calibration pieces of various cubes, or a plurality of small areas. The sheet-like standard source arrangement is combined into a large-area sheet-shaped correcting member, so as to simulate the surface or the whole interior of a large-scale object of radioactive waste which is a decommission of a nuclear facility, and a calibration volume is established. Source) or calibration with a large area patch source (calibration slice source).

In addition, the present invention provides a method for measuring a large-scale object of radioactive waste, which is directly used to measure the surface activity of a large-scale object of radioactive waste by using an in-situ gamma spectroscopy. And the measurement method of the overall activity, in order to save the time and facilities of the container-type detection system laboratory sent to the fixed place, the large-scale object needs to be After the pieces are cut into the drum or inside the box, the centralized batch handling is carried out to the container type detection system for measurement and the facility operator does not need to purchase the container type detection system and provide the placement place.

The above description is only intended to describe the preferred embodiments or embodiments of the present invention, which are not intended to limit the scope of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

S100‧‧‧Method for correcting large-scale objects of radioactive waste

S110~S120‧‧‧Steps

Claims (18)

A measuring system for a large-scale object of radioactive waste, comprising: a correcting member, the correcting member comprising a plurality of objects, the plurality of objects being arranged as the correcting member; and a mobile Jiama spectrum analyzer comprising a detection And a standard component, the detector is coupled to the standard component, and the detector is configured to measure the surface activity or the overall internal activity of the calibration component, and compare the measured component by the standard component. The horse's surface activity or overall internal activity of the correcting member. The measuring system for a large-scale item of radioactive waste according to claim 1, wherein the plurality of objects are aligned by a capability test activity, and the plurality of objects are three-dimensionally stacked into the correcting member. The measuring system for a large-scale item of radioactive waste according to claim 2, wherein each of the objects is a box-shaped object, and the plurality of box-shaped objects are stacked in a rectangular parallelepiped or a rectangular parallelepiped. The measuring system for a large-scale item of radioactive waste according to claim 2, wherein each of the objects is a barrel-shaped object, and the plurality of barrel-shaped objects are stacked and arranged in a cube. A measuring system for a large-scale object of radioactive waste according to claim 4, wherein the cube comprises a cube, a quad cube, a hexagonal cuboid, an octagonal cube or an eight cube. The measuring system for a large-scale object of radioactive waste according to claim 1, wherein the plurality of objects are an area-shaped sheet, and each of the area-like sheets conforms to a known key nuclear species Cs-137 and Co-60. The national radiation standard activity is traced, and the sheet-like bodies of the area are arranged to form the correcting piece having a large area. The measuring system for a large-scale object of radioactive waste according to claim 1, wherein the standard member has a size, a volume, a weight, a material, and a distance of the geometric shape of the correcting member. The parameters. A method for correcting a large-scale object of radioactive waste, comprising: providing a plurality of objects; and arranging the plurality of objects into a correcting member, wherein the plurality of objects are three-dimensionally stacked into the correcting member, or the plurality of objects is an area The sheet-like body, each of the area-like sheet-like bodies is arranged in combination to form the correcting member having a large-area sheet shape. The method for correcting a large-scale item of radioactive waste according to claim 8, wherein when the plurality of objects are three-dimensionally stacked into the correcting member, the plurality of objects are compared by a capability test activity. The method for correcting a large-scale object of radioactive waste according to claim 8, wherein when the plurality of objects are the sheet-like body, each of the area-like sheet systems conforms to the known key nuclear species Cs-137 and Co-60. Trace back to the national radiation standard activity. The method for correcting a large-scale item of radioactive waste according to claim 8, wherein each of the objects is a box-shaped object, and the step of arranging the plurality of objects into the correcting member comprises: the plurality of box-shaped objects The stacks are arranged in a rectangular parallelepiped or a cube. The method for correcting a large-scale item of radioactive waste according to claim 8, wherein each of the objects is a barrel-shaped object, and the step of arranging the plurality of objects into the correcting member comprises: the plurality of barrel-shaped objects The stacks are arranged in a cube, wherein the cubes comprise a cube, a quadrangle, a hexagonal cuboid, an eight cuboid or an eight cube. A method for measuring a large-scale object of radioactive waste, comprising: providing a calibration component and a mobile kama spectrum analyzer, wherein the calibration component comprises a plurality of objects, the plurality of objects being stereoscopically stacked into the calibration component, or The plurality of objects are an area of a sheet-like body, and each of the area of the sheet-like body is arranged to form the correction piece having a large-area sheet shape, and the movable Jiama spectrum analyzer comprises a detector and a standard part; The detector is configured to measure the gamma surface activity or the overall internal activity of the calibrating member; and compare the measured gamma surface activity or the overall internal activity of the calibrating member by the standard component. The method for measuring a large-scale object of radioactive waste according to claim 13, wherein when the plurality of objects are three-dimensionally stacked into the correcting member, the plurality of objects are compared by a capability test activity. The method for measuring a large-scale object of radioactive waste according to claim 13 , wherein when the plurality of objects are the sheet-like body of the area, each of the area-like sheet systems conforms to the known key nuclear species Cs-137 and Co- 60 traces the national radiation standard activity. The method for measuring a large-scale item of radioactive waste according to claim 13 , wherein each of the objects is a box-shaped object, and the step of stacking the plurality of objects into three-dimensionally stacked into the correcting member comprises: The box-shaped objects are stacked in a rectangular parallelepiped or a rectangular parallelepiped. The method for measuring a large-scale item of radioactive waste according to claim 13 , wherein each of the objects is a barrel-shaped object, and the step of stacking the plurality of objects into three-dimensionally stacked into the correcting member comprises: The bucket-shaped objects are stacked in a cube, wherein the cube comprises a cube, a quad-cube, a six-cuboid, an eight-cuboid or an eight-cube. The method for measuring a large-scale object of radioactive waste according to claim 13, wherein the standard member has a parameter of a size, a volume, a weight, a material, and a distance of a geometry of the correcting member.