CN113221226B - Design method and device of shielding room, storage medium and electronic equipment - Google Patents
Design method and device of shielding room, storage medium and electronic equipment Download PDFInfo
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Abstract
The disclosure relates to a shielding room design method, a device, a shielding room, a storage medium and electronic equipment, and relates to the technical field of medical equipment, wherein the method is applied to the shielding room and comprises the following steps: constructing a scanning device model according to first attribute information of the scanning device, wherein the first attribute information comprises: the size and material of each of the plurality of components constituting the scanning apparatus construct a shielding room model according to second attribute information of the shielding room, the shielding room model including a plurality of detection areas, each detection area corresponding to an actual area on a wall surface of the shielding room, the second attribute information including: and controlling a scanning equipment model by the size of the shielding room, performing simulated scanning in the shielding room model according to a plurality of scanning modes to determine the radiation dose of each detection area, and determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area. The present disclosure can reduce the cost and weight of a shielding room.
Description
Technical Field
The disclosure relates to the technical field of medical equipment, in particular to a shielding room design method and device, a shielding room, a storage medium and electronic equipment.
Background
With the continuous development of image processing technology, X-ray scanning apparatuses are widely used in the medical field, for example: CT (english: computed Tomography, chinese: computerized tomography) equipment, CR (english: computed Radiography, chinese: computerized radiography) equipment, DR (english: digital Radiography, chinese: digital radiography) equipment, and the like. The X-ray scanning device has the characteristics of quick scanning time, clear image and the like.
In practical use, the scanning device is required to be placed in a shielding room, and a shielding layer (for example, a lead layer) is wrapped on the wall of the shielding room, so as to avoid injury of ionizing radiation caused by X-rays to surrounding personnel. Typically, the thickness of the shielding layer is uniform.
Disclosure of Invention
The disclosure aims to provide a design method and device of a shielding room, the shielding room, a storage medium and electronic equipment, which are used for solving related technical problems in the prior art.
To achieve the above object, according to a first aspect of embodiments of the present disclosure, there is provided a method for designing a shielding room, applied to the shielding room, in which a scanning device is disposed, the method including:
constructing a scanning equipment model according to first attribute information of the scanning equipment, wherein the first attribute information comprises: the size and material of each of a plurality of components comprising the scanning device;
Constructing a shielding room model according to second attribute information of the shielding room, wherein the shielding room model comprises a plurality of detection areas, each detection area corresponds to an actual area on the wall surface of the shielding room, and the second attribute information comprises: the dimensions of the shielding room;
controlling the scanning equipment model, and performing simulated scanning in the shielding room model according to a plurality of scanning modes to determine the radiation dose of each detection area;
And determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area.
Optionally, the second attribute information further includes: the size, material, and relative position of other objects within the shielding enclosure, except for the scanning device, and the shielding enclosure.
Optionally, before said controlling said scan device model, performing a simulated scan in said shielding room model according to a plurality of scan modes to determine the radiation dose of each of said detection areas, said method further comprises:
Combining the scanning equipment model and the shielding room model to obtain a detection model, wherein the relative position of the scanning equipment model and the shielding room model in the detection model is the same as the relative position of the scanning equipment and the shielding room;
the controlling the scanning device model, performing a simulation scan in the shielding room model according to a plurality of scanning modes to determine the radiation dose of each detection area, includes:
controlling the scanning equipment model in the detection model, and performing simulated scanning according to a plurality of scanning modes;
the radiation dose of each detection zone is determined on the basis of at least one detection unit arranged on that detection zone.
Optionally, the scan mode includes: scanning intensity and scanning an object, the method further comprising:
constructing a scanning object model corresponding to a scanning object, wherein the scanning object comprises: at least one of air, mold body, body part;
The controlling the scanning equipment model in the detection model, performing analog scanning according to a plurality of scanning modes, comprises the following steps:
And controlling the scanning equipment model in the detection model according to each scanning mode, and transmitting rays to a scanning object model corresponding to a scanning object included in the scanning mode according to the scanning intensity included in the scanning mode.
Optionally, the determining the radiation dose of each detection area according to at least one detection unit disposed on the detection area includes:
determining, for each of said detection regions, an initial radiation dose detected by each of said detection units in that detection region in each of said scan modes;
determining the corresponding inferior state radiation dose of each detection unit in the detection area according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode;
and determining the radiation dose of the detection area according to the inferior state radiation dose corresponding to each detection unit in the detection area.
Optionally, the determining, according to the radiation dose of each detection area, the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area includes:
and determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose.
Optionally, the determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose includes:
Determining the thickness of the shielding layer at the actual area corresponding to the detection area through a preset formula according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose;
The preset formula is as follows:
Wherein L represents the thickness of the shielding layer at the actual area corresponding to the detection area, I represents the safe radiation dose, I 0 represents the radiation dose of the detection area, U represents the attenuation coefficient of the shielding layer, and al represents the preset redundant thickness.
According to a second aspect of embodiments of the present disclosure, there is provided a design apparatus of a shielding room, applied to the shielding room, in which a scanning device is disposed, the apparatus including:
The construction module is used for constructing a scanning equipment model according to first attribute information of the scanning equipment, wherein the first attribute information comprises: the size and material of each of a plurality of components comprising the scanning device;
the construction module is further configured to construct a shielding room model according to second attribute information of the shielding room, where the shielding room model includes a plurality of detection areas, each detection area corresponds to an actual area on a wall surface of the shielding room, and the second attribute information includes: the dimensions of the shielding room;
The control module is used for controlling the scanning equipment model, and performing simulated scanning in the shielding room model according to a plurality of scanning modes so as to determine the radiation dose of each detection area;
And the determining module is used for determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area.
Optionally, the second attribute information further includes: the size, material, and relative position of other objects within the shielding enclosure, except for the scanning device, and the shielding enclosure.
Optionally, the apparatus further comprises:
A combination module, configured to combine the scan equipment model with the shielding room model to obtain a detection model before the scan equipment model is controlled, and performing a simulation scan in the shielding room model according to a plurality of scan modes to determine a radiation dose of each detection area, where a relative position of the scan equipment model and the shielding room model is the same as a relative position of the scan equipment and the shielding room;
The control module includes:
The scanning sub-module is used for controlling the scanning equipment model in the detection model and performing simulation scanning according to a plurality of scanning modes;
and the detection sub-module is used for determining the radiation dose of each detection area according to at least one detection unit arranged on each detection area.
Optionally, the scan mode includes: scanning intensity and scanning object, the construction module is used for: constructing a scanning object model corresponding to a scanning object, wherein the scanning object comprises: at least one of air, mold body, body part;
the scanning submodule is used for:
And controlling the scanning equipment model in the detection model according to each scanning mode, and transmitting rays to a scanning object model corresponding to a scanning object included in the scanning mode according to the scanning intensity included in the scanning mode.
Optionally, the detection submodule is configured to:
determining, for each of said detection regions, an initial radiation dose detected by each of said detection units in that detection region in each of said scan modes;
determining the corresponding inferior state radiation dose of each detection unit in the detection area according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode;
and determining the radiation dose of the detection area according to the inferior state radiation dose corresponding to each detection unit in the detection area.
Optionally, the determining module is configured to:
and determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose.
Optionally, the determining module is configured to:
Determining the thickness of the shielding layer at the actual area corresponding to the detection area through a preset formula according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose;
The preset formula is as follows:
Wherein L represents the thickness of the shielding layer at the actual area corresponding to the detection area, I represents the safe radiation dose, I 0 represents the radiation dose of the detection area, U represents the attenuation coefficient of the shielding layer, and al represents the preset redundant thickness.
According to a third aspect of embodiments of the present disclosure, there is provided a shielding room, a wall surface of the shielding room is provided with a shielding layer, and a thickness of the shielding layer is determined according to the method of the first aspect of embodiments of the present disclosure.
According to a fourth aspect of the disclosed embodiments, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of the method of the first aspect of the disclosed embodiments.
According to a fifth aspect of embodiments of the present disclosure, there is provided an electronic device, comprising:
a memory having a computer program stored thereon;
A processor for executing the computer program in the memory to implement the steps of the method of the first aspect of the embodiments of the present disclosure.
Through the technical scheme, the method comprises the steps of firstly constructing a corresponding scanning equipment model according to the first attribute information of the scanning equipment in the shielding room, and then constructing a shielding room model corresponding to the shielding room according to the second attribute information comprising the size of the shielding room, wherein the first attribute information comprises the size and the material of each part included by the scanning equipment, the shielding room model comprises a plurality of detection areas, and each detection area corresponds to one actual area on the wall surface of the shielding room. And then, controlling the scanning equipment model to perform simulated scanning in the shielding room model according to a plurality of scanning modes, thereby obtaining the radiation dose of each detection area, and finally determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area. According to the method and the device, the thicknesses of the shielding layers at the multiple areas are respectively determined through simulating different scanning modes, and compared with the shielding layers with uniform thicknesses, the method and the device can reduce the cost and the weight of the shielding room on the premise of ensuring safety.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a method of designing a shielded room according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating another method of designing a shielded room according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating another method of designing a shielded room according to an exemplary embodiment;
FIG. 4 is a block diagram of a design apparatus for a shielded room, according to an example embodiment;
FIG. 5 is a block diagram of another shielding enclosure design apparatus, shown in accordance with an exemplary embodiment;
fig. 6 is a block diagram of an electronic device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
In the method, corresponding scanning equipment models and shielding room models are respectively constructed aiming at the scanning equipment and the shielding room, wherein a plurality of detection areas are arranged in the shielding room models, and the detection areas are respectively in one-to-one correspondence with a plurality of actual areas divided by the wall surface of the shielding room. The radiation dose for each detection zone is then determined separately by simulating different scan patterns, thereby determining the thickness of the shielding layer at each actual zone corresponding thereto. That is, the thickness of the shielding layer at each actual area is determined according to the corresponding radiation dose, and compared with the shielding layer with uniform thickness, the cost and the weight of the shielding room can be effectively reduced on the premise of ensuring safety.
Fig. 1 is a flowchart illustrating a method for designing a shielding room according to an exemplary embodiment, and as shown in fig. 1, the method is applied to a shielding room, and a scanning device is disposed in the shielding room, and may include the following steps:
step 101, constructing a scanning device model according to first attribute information of the scanning device, wherein the first attribute information comprises: the size and material of each of the plurality of components comprising the scanning device.
For example, the application scenario according to the embodiments of the present disclosure may be any shielding room provided with a scanning device. The scanning device may be any X-ray scanning device, for example: the shape of the shielding room may be a cube, or may be other shapes, such as a CT apparatus, a CR apparatus, a DR apparatus, etc., which is not particularly limited in this disclosure. Firstly, a scan device model corresponding to the scan device can be constructed according to first attribute information of the scan device, for example, using preset simulation software, for example, geant4 or other simulation software commonly used by those skilled in the art, and the type of the simulation software is not specifically limited in this disclosure. Wherein the first attribute information may include a size and a material of each of a plurality of components constituting the scanning apparatus. Taking a scanning device as an example of a CT device, the various components that make up the CT device may include: bulb, filter (titanium plate, shape filter), upper slice, gantry, scanner bed, detector, etc., then the first attribute may include: the size and material of the bulb, the size and material of the filter, the size and material of the upper slice, the size and material of the gantry, the size and material of the scanning bed, the size and material of the detector, etc. Thus, the scanning equipment model constructed according to the first attribute information can simulate real scanning equipment. Specifically, when the model of the scanning device is constructed, a model corresponding to each component may be constructed first, for example, according to the size of each component, according to 1:1, and setting the same material for the model corresponding to each component according to the material of each component. And finally, assembling the corresponding models according to the position relation among the components so as to obtain a scanning equipment model consistent with the scanning equipment.
Step 102, constructing a shielding room model according to second attribute information of the shielding room, wherein the shielding room model comprises a plurality of detection areas, each detection area corresponds to an actual area on the wall surface of the shielding room, and the second attribute information comprises: the dimensions of the shielding room.
For example, according to the second attribute information of the shielding room, a shielding room model corresponding to the shielding room can be built by using simulation software, and the simulation software for building the shielding room model is the same as the simulation software for building the scanning equipment model, and may be Geant4, for example. Wherein the second attribute information may include: the dimensions of the shielding room. Taking the shielding room as a cube for example, the second attribute information may include the length, width, and height of the shielding room. For another example, the shielding room is a cylinder, and the second attribute information may include a height of a side surface of the shielding room, and a radius of a bottom surface. Thus, the shielding room model constructed according to the second attribute information can simulate a real shielding room. Specifically, when the shielding room model is constructed, according to the size of the shielding room, the following steps are 1:1, such that each location in the shielding room model corresponds to a location in the shielding room. Further, the shielding room model may be divided into a plurality of detection areas, wherein each detection area corresponds to one actual area on the wall surface of the shielding room. It can be understood that the wall surface of the shielding room is divided into a plurality of actual areas, and the size of each actual area can be the same or different. And then, adding one or more detection units into the detection area corresponding to each actual area in the shielding room model through simulation software, wherein the detection units are used for detecting the radiation dose in the detection area.
Step 103, controlling the scanning device model, and performing analog scanning in the shielding room model according to a plurality of scanning modes to determine the radiation dose of each detection area.
Step 104, determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area.
For example, after the scan device model and the shielding room model are constructed, the scan device model may be disposed inside the shielding room model, and then the scan device model is controlled to perform a simulation scan in the shielding room model according to a plurality of scan modes, thereby determining the radiation dose of each detection region. The scanning mode is understood to be a mode that the scanning device will use in actual use. Analog scanning, it is understood that the number of photons emitted by the scanning device model is set in the simulation software to simulate the actual scanning process of the scanning device. The detected radiation dose may be different for each detection zone, and in order to ensure that the shielding room is shielded from a sufficient amount of ionizing radiation in any scanning mode, thereby ensuring the safety of surrounding personnel, the maximum radiation dose detected by the detection zone may be used as the radiation dose of the detection zone.
After the radiation dose of each detection area is obtained, the thickness (for example, may be 100 mm) corresponding to the radiation dose of the detection area may be determined according to the preset correspondence between the radiation dose and the thickness, and the thickness is determined as the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area. The radiation dose and the thickness are positively correlated, that is, the greater the radiation dose, the thicker the corresponding thickness of the shielding layer, the corresponding relationship between the radiation dose and the thickness may be a functional relationship obtained by fitting in advance according to a large amount of experimental data, may be a relationship table obtained by counting a large amount of experimental data, or may be a relationship model obtained by training according to a large amount of experimental data, which is not particularly limited in the present disclosure. Further, the shielding layer (e.g., lead plate) of a corresponding thickness may be wrapped at each actual area according to the thickness of the shielding layer at that actual area. Specifically, lead plates with corresponding thickness can be selected according to the thickness of the shielding layer at each actual area, and then the lead plates corresponding to the actual areas are spliced according to the position of each actual area on the wall surface and the position relation so as to wrap the whole shielding room. Therefore, the thickness of the shielding layer at each actual area in the shielding room is determined according to the corresponding radiation dose, and compared with the shielding layer with uniform thickness, the cost and the weight of the shielding room can be effectively reduced on the premise of ensuring safety.
In summary, the present disclosure firstly constructs a corresponding scan device model according to first attribute information of a scan device in a shielding room, and then constructs a shielding room model corresponding to the shielding room according to second attribute information including dimensions of the shielding room, where the first attribute information includes dimensions and materials of each component included in the scan device, the shielding room model includes a plurality of detection areas, and each detection area corresponds to an actual area on a wall surface of the shielding room. And then, controlling the scanning equipment model to perform simulated scanning in the shielding room model according to a plurality of scanning modes, thereby obtaining the radiation dose of each detection area, and finally determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area. According to the method and the device, the thicknesses of the shielding layers at the multiple areas are respectively determined through simulating different scanning modes, and compared with the shielding layers with uniform thicknesses, the method and the device can reduce the cost and the weight of the shielding room on the premise of ensuring safety.
In one application scenario, the second attribute information further includes: the size, material, and relative position of other objects within the shielding enclosure, except for the scanning device, and the shielding enclosure.
By way of example, in general, other objects may be present in the shielding room in addition to the scanning device, which may be one or more, for example: film printers, etc. Therefore, in the process of modeling the shielding room, other objects can be modeled together, and the constructed shielding room model can completely correspond to a real shielding room. When the shielding room model is constructed according to the second attribute information of the shielding room, the size of the shielding room included in the second attribute information can be firstly calculated according to 1:1, and then according to the sizes of other objects included in the second attribute information, constructing a model corresponding to the shielding room according to the proportion of 1:1, setting the models corresponding to other objects according to the proportion of the other objects, setting the same materials for the models corresponding to other objects according to the materials of other objects, and finally setting the models corresponding to other objects in the models corresponding to the shielding rooms to obtain the complete shielding room model. Thus, the relative positions of the model corresponding to the other objects and the model corresponding to the shielding room in the shielding room model are completely consistent with the relative positions of the other objects and the shielding room.
Fig. 2 is a flow chart illustrating another method of designing a shielding room according to an exemplary embodiment, as shown in fig. 2, the method may further include, before step 103:
Step 105, combining the scanning device model and the shielding room model to obtain a detection model, wherein the relative position of the scanning device model and the shielding room model in the detection model is the same as the relative position of the scanning device and the shielding room.
For example, in order to completely simulate the radiation dose of the wall surface of the shielding room in actual use of the scanning device, the scanning device model and the shielding room model may be combined according to the relative positions of the scanning device and the shielding room before the scanning device model is controlled to perform simulated scanning, so that the combined model is used as the detection model. In the detection model, the relative position of the scanning equipment model and the shielding room model is the same as that of the scanning equipment and the shielding room.
Accordingly, the implementation of step 103 may include:
step 1031, controlling the scanning equipment model in the detection model, and performing analog scanning according to a plurality of scanning modes.
Step 1032, determining the radiation dose for each detection zone based on at least one detection unit disposed on the detection zone.
For example, the process of controlling the scan device model to simulate scanning may first control the scan device model in the detection model, perform the simulated scanning according to a plurality of scan modes, and then determine the radiation dose of each detection area by at least one detection unit disposed on the detection area. In the detection model, the relative position of the scanning equipment model and the shielding room model is the same as that of the scanning equipment and the shielding room, so that the radiation dose of each detection area is the same as that of an actual area corresponding to the detection area when the scanning equipment model performs analog scanning.
The number of the detection units arranged on each detection area can be determined according to the size of the detection area. In one embodiment, the number of detection units may be determined on the basis that the detection units are able to cover the entire detection area completely. For example, the detection area is m×n, and the area of each detection unit is m×n, then the number of detection units is (m×n)/(m×n). In another implementation, the detection unit may be disposed at a designated position of the detection area. For example, the detection area is rectangular, and 5 detection units may be disposed at 4 vertex angles in the center of the detection area. Other arrangements of the detection units within the detection area are also possible, which are not specifically limited by the present disclosure.
Fig. 3 is a flowchart illustrating another method of designing a shielding room according to an exemplary embodiment, and as shown in fig. 3, the scan pattern includes: scanning intensity and scanning an object, the method may further comprise:
step 106, constructing a scan object model corresponding to the scan object, wherein the scan object comprises: at least one of air, mold body, and body part.
Accordingly, the implementation manner of step 1031 may be:
And controlling a scanning equipment model in the detection model aiming at each scanning mode, and transmitting rays to a scanning object model corresponding to a scanning object included in the scanning mode according to the scanning intensity included in the scanning mode.
For example, the scan pattern may be determined according to the scan intensity and two dimensions of the scan object, and if the scan intensity is divided into P types and the scan object is divided into Q types, the scan pattern may include p×q types. For example, the scan intensity may include: 100mAs, 150mAs, 200mAs, 150mAs, the scan object comprises: air, mold body, different body parts (e.g., head, abdomen, hands, etc.). For different scan objects, a scan object model corresponding to the scan object can be constructed according to attribute information of the scan object. The attribute information of the scan object may include, for example, the size, material, and the like of the scan object.
Then, for each scanning mode, the scanning object model corresponding to the scanning object included in the scanning mode can be placed in the detection model, and the position of the scanning object model is located at the position of the model corresponding to the scanning bed included in the scanning equipment model. And then controlling a scanning equipment model in the detection model, and emitting rays to a scanning object model corresponding to the scanning object included in the scanning mode according to the scanning intensity included in the scanning mode. In particular, different scan intensities can be simulated by setting the number of photons emitted by the scan device model.
In another application scenario, step 1032 may be implemented by:
First, for each detection zone, an initial radiation dose detected by each detection unit in the detection zone in each scanning mode is determined.
And then, determining the inferior state radiation dose corresponding to each detection unit in the detection area according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode.
And finally, determining the radiation dose of the detection area according to the inferior state radiation dose corresponding to each detection unit in the detection area.
In an example, in a scene in which a plurality of detection units are provided in each detection area. For each detection zone, first, an initial radiation dose detected by each detection unit in the detection zone in each scanning mode is determined. The initial radiation dose is understood to be the radiation dose detected by the detection unit. For example, there are 4 scan modes, and each detection unit in the detection area will detect 4 initial radiation doses, denoted Iorg 1、Iorg2、Iorg3、Iorg4. Then, according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode, the inferior state radiation dose corresponding to each detection unit in the detection area can be determined. A bad state radiation dose is understood to be the maximum radiation dose detected by the detection unit in a plurality of scanning modes. For example, the inferior state radiation dose is denoted Iinf, then Iinf =max (Iorg 1,Iorg2,Iorg3,Iorg4).
Finally, the radiation dose of the detection zone may be determined based on the corresponding inferior state radiation dose of each detection unit within the detection zone. The radiation dose of the detection area may be, for example, the maximum of the corresponding inferior radiation doses of each detection unit in the detection area.
In one implementation, the implementation of step 104 may be:
and determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose.
Specifically, the thickness of the shielding layer at the actual area corresponding to the detection area can be determined according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose through a preset formula.
Wherein, the preset formula is:
Wherein L represents the thickness of the shielding layer at the actual area corresponding to the detection area, I represents the safe radiation dose, I 0 represents the radiation dose of the detection area, U represents the attenuation coefficient of the shielding layer, and al represents the preset redundant thickness.
Specifically, different I can be set on which wall surface of the shielding room according to the actual area corresponding to the detection area. Taking the shielding room as a cube for example, the shielding room comprises 6 wall surfaces, a wall surface positioned at the top and the outside of the wall surface positioned at the bottom, no personnel exist generally, so that the corresponding I can be set larger, and the corresponding I of the other 4 wall surfaces can be set smaller. Δl may be an empirical value set in advance, and may be set to 10mm, for example. Δl may also be the product of L and a predetermined proportion, for example, the predetermined proportion may be 5%.
In summary, the present disclosure firstly constructs a corresponding scan device model according to first attribute information of a scan device in a shielding room, and then constructs a shielding room model corresponding to the shielding room according to second attribute information including dimensions of the shielding room, where the first attribute information includes dimensions and materials of each component included in the scan device, the shielding room model includes a plurality of detection areas, and each detection area corresponds to an actual area on a wall surface of the shielding room. And then, controlling the scanning equipment model to perform simulated scanning in the shielding room model according to a plurality of scanning modes, thereby obtaining the radiation dose of each detection area, and finally determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area. According to the method and the device, the thicknesses of the shielding layers at the multiple areas are respectively determined through simulating different scanning modes, and compared with the shielding layers with uniform thicknesses, the method and the device can reduce the cost and the weight of the shielding room on the premise of ensuring safety.
Fig. 4 is a block diagram of a design apparatus for a shielding room, as shown in fig. 2, applied to the shielding room, in which a scanning device is disposed, according to an exemplary embodiment, the apparatus 200 includes:
A building module 201, configured to build a scanning device model according to first attribute information of the scanning device, where the first attribute information includes: the size and material of each of the plurality of components comprising the scanning device.
The construction module 201 is further configured to construct a shielding room model according to second attribute information of the shielding room, where the shielding room model includes a plurality of detection areas, each detection area corresponds to an actual area on a wall surface of the shielding room, and the second attribute information includes: the dimensions of the shielding room.
A control module 202 for controlling the scan device model to perform a simulation scan in the shielding room model according to a plurality of scan modes to determine the radiation dose of each detection zone.
A determining module 203, configured to determine, according to the radiation dose of each detection area, a thickness of the shielding layer in the shielding room at an actual area corresponding to the detection area.
In one application scenario, the second attribute information further includes: the size, material, and relative position of other objects within the shielding enclosure, except for the scanning device, and the shielding enclosure.
Fig. 5 is a block diagram of another shielding room design apparatus, according to an exemplary embodiment, as shown in fig. 5, the apparatus 200 may further include:
The combination module 204 is configured to combine the scan equipment model with the shielding room model to obtain a detection model before controlling the scan equipment model to perform analog scanning in the shielding room model according to multiple scan modes to determine a radiation dose of each detection area, where a relative position of the scan equipment model and the shielding room model in the detection model is the same as a relative position of the scan equipment and the shielding room.
Accordingly, the control module 202 may include:
the scanning submodule 2021 is configured to control a scanning device model in the detection model, and perform analog scanning according to a plurality of scanning modes.
A detection submodule 2022 for determining the radiation dose of each detection zone from at least one detection unit provided on that detection zone.
In another application scenario, the scan pattern includes: scan intensity and scan object, build module 201 may be used to: constructing a scanning object model corresponding to a scanning object, wherein the scanning object comprises: at least one of air, mold body, and body part.
The scan submodule 2021 is configured to:
And controlling a scanning equipment model in the detection model aiming at each scanning mode, and transmitting rays to a scanning object model corresponding to a scanning object included in the scanning mode according to the scanning intensity included in the scanning mode.
In another application scenario, the detection sub-module 2022 may be used to perform the following steps:
First, for each detection zone, an initial radiation dose detected by each detection unit in the detection zone in each scanning mode is determined.
And then, determining the inferior state radiation dose corresponding to each detection unit in the detection area according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode.
And finally, determining the radiation dose of the detection area according to the inferior state radiation dose corresponding to each detection unit in the detection area.
In one implementation, the determining module 203 may be configured to:
and determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose.
In another implementation, the determining module 203 may be configured to:
And determining the thickness of the shielding layer at the actual area corresponding to the detection area through a preset formula according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose.
The preset formula is:
Wherein L represents the thickness of the shielding layer at the actual area corresponding to the detection area, I represents the safe radiation dose, I 0 represents the radiation dose of the detection area, U represents the attenuation coefficient of the shielding layer, and al represents the preset redundant thickness.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
In summary, the present disclosure firstly constructs a corresponding scan device model according to first attribute information of a scan device in a shielding room, and then constructs a shielding room model corresponding to the shielding room according to second attribute information including dimensions of the shielding room, where the first attribute information includes dimensions and materials of each component included in the scan device, the shielding room model includes a plurality of detection areas, and each detection area corresponds to an actual area on a wall surface of the shielding room. And then, controlling the scanning equipment model to perform simulated scanning in the shielding room model according to a plurality of scanning modes, thereby obtaining the radiation dose of each detection area, and finally determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area. According to the method and the device, the thicknesses of the shielding layers at the multiple areas are respectively determined through simulating different scanning modes, and compared with the shielding layers with uniform thicknesses, the method and the device can reduce the cost and the weight of the shielding room on the premise of ensuring safety.
The disclosure also provides a shielding room, wherein a shielding layer is arranged on the wall surface of the shielding room, and the thickness of the shielding layer is determined according to any design method of the shielding room provided by the embodiment of the disclosure.
Fig. 6 is a block diagram of an electronic device 300, according to an example embodiment. As shown in fig. 6, the electronic device 300 may include: a processor 301, a memory 302. The electronic device 300 may also include one or more of a multimedia component 303, an input/output (I/O) interface 304, and a communication component 305.
The processor 301 is configured to control the overall operation of the electronic device 300 to perform all or part of the steps in the method for designing a shielding room described above. The memory 302 is used to store various types of data to support operation at the electronic device 300, which may include, for example, instructions for any application or method operating on the electronic device 300, as well as application-related data, such as contact data, transceived messages, pictures, audio, video, and the like. The Memory 302 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 303 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 302 or transmitted through the communication component 305. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 304 provides an interface between the processor 301 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 305 is used for wired or wireless communication between the electronic device 300 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, near Field Communication (NFC) for short, 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 305 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic device 300 may be implemented by one or more Application-specific integrated circuits (ASIC), digital signal Processor (DIGITAL SIGNAL Processor, DSP), digital signal processing device (DIGITAL SIGNAL Processing Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field Programmable GATE ARRAY, FPGA), controller, microcontroller, microprocessor, or other electronic components for performing the above-described method of designing a shielded room.
In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the above-described method of designing a shielding room. For example, the computer readable storage medium may be the memory 302 including program instructions described above, which are executable by the processor 301 of the electronic device 300 to perform the method of designing a shielding room described above.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described method of designing a shielding room when executed by the programmable apparatus.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (7)
1. A method for designing a shielding room, which is applied to a shielding room, wherein a scanning device is arranged in the shielding room, and the method comprises the following steps:
constructing a scanning equipment model according to first attribute information of the scanning equipment, wherein the first attribute information comprises: the size and material of each of a plurality of components comprising the scanning device;
Constructing a shielding room model according to second attribute information of the shielding room, wherein the shielding room model comprises a plurality of detection areas, each detection area corresponds to an actual area on the wall surface of the shielding room, and the second attribute information comprises: the dimensions of the shielding room;
controlling the scanning equipment model, and performing simulated scanning in the shielding room model according to a plurality of scanning modes to determine the radiation dose of each detection area;
Determining the thickness of a shielding layer in the shielding room at an actual area corresponding to the detection area according to the radiation dose of each detection area;
Before said controlling said scanning device model, performing a simulated scan in said shielding room model in accordance with a plurality of scan modes to determine the radiation dose of each of said detection zones, said method further comprises:
Combining the scanning equipment model and the shielding room model to obtain a detection model, wherein the relative position of the scanning equipment model and the shielding room model in the detection model is the same as the relative position of the scanning equipment and the shielding room;
the controlling the scanning device model, performing a simulation scan in the shielding room model according to a plurality of scanning modes to determine the radiation dose of each detection area, includes:
controlling the scanning equipment model in the detection model, and performing simulated scanning according to a plurality of scanning modes;
Determining the radiation dose of each detection area according to at least one detection unit arranged on each detection area;
Said determining the radiation dose of each of said detection areas according to at least one detection unit arranged on said detection area comprises:
determining, for each of said detection regions, an initial radiation dose detected by each of said detection units in that detection region in each of said scan modes;
determining the corresponding inferior state radiation dose of each detection unit in the detection area according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode;
determining the radiation dose of the detection area according to the inferior state radiation dose corresponding to each detection unit in the detection area;
The determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area comprises the following steps:
determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose;
The determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose comprises the following steps:
Determining the thickness of the shielding layer at the actual area corresponding to the detection area through a preset formula according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose;
The preset formula is as follows:
Wherein L represents the thickness of the shielding layer at the actual area corresponding to the detection area, I represents the safe radiation dose, I 0 represents the radiation dose of the detection area, U represents the attenuation coefficient of the shielding layer, and al represents the preset redundant thickness.
2. The method of claim 1, wherein the second attribute information further comprises: the size, material, and relative position of other objects within the shielding enclosure, except for the scanning device, and the shielding enclosure.
3. The method of claim 1, wherein the scan pattern comprises: scanning intensity and scanning an object, the method further comprising:
constructing a scanning object model corresponding to a scanning object, wherein the scanning object comprises: at least one of air, mold body, body part;
The controlling the scanning equipment model in the detection model, performing analog scanning according to a plurality of scanning modes, comprises the following steps:
And controlling the scanning equipment model in the detection model according to each scanning mode, and transmitting rays to a scanning object model corresponding to a scanning object included in the scanning mode according to the scanning intensity included in the scanning mode.
4. A design device for a shielding room, which is applied to the shielding room, wherein a scanning device is arranged in the shielding room, and the device comprises:
The construction module is used for constructing a scanning equipment model according to first attribute information of the scanning equipment, wherein the first attribute information comprises: the size and material of each of a plurality of components comprising the scanning device;
the construction module is further configured to construct a shielding room model according to second attribute information of the shielding room, where the shielding room model includes a plurality of detection areas, each detection area corresponds to an actual area on a wall surface of the shielding room, and the second attribute information includes: the dimensions of the shielding room;
The control module is used for controlling the scanning equipment model, and performing simulated scanning in the shielding room model according to a plurality of scanning modes so as to determine the radiation dose of each detection area;
The determining module is used for determining the thickness of the shielding layer in the shielding room at the actual area corresponding to the detection area according to the radiation dose of each detection area;
the apparatus further comprises:
A combination module, configured to combine the scan equipment model with the shielding room model to obtain a detection model before the scan equipment model is controlled, and performing a simulation scan in the shielding room model according to a plurality of scan modes to determine a radiation dose of each detection area, where a relative position of the scan equipment model and the shielding room model is the same as a relative position of the scan equipment and the shielding room;
The control module includes:
The scanning sub-module is used for controlling the scanning equipment model in the detection model and performing simulation scanning according to a plurality of scanning modes;
the detection sub-module is used for determining the radiation dose of each detection area according to at least one detection unit arranged on each detection area;
the detection submodule is used for:
determining, for each of said detection regions, an initial radiation dose detected by each of said detection units in that detection region in each of said scan modes;
determining the corresponding inferior state radiation dose of each detection unit in the detection area according to the initial radiation dose detected by each detection unit in the detection area in each scanning mode;
determining the radiation dose of the detection area according to the inferior state radiation dose corresponding to each detection unit in the detection area;
The determining module is used for:
determining the thickness of the shielding layer at the actual area corresponding to the detection area according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose;
The determining module is used for:
Determining the thickness of the shielding layer at the actual area corresponding to the detection area through a preset formula according to the radiation dose of the detection area, the attenuation coefficient of the shielding layer and the safe radiation dose;
The preset formula is as follows:
Wherein L represents the thickness of the shielding layer at the actual area corresponding to the detection area, I represents the safe radiation dose, I 0 represents the radiation dose of the detection area, U represents the attenuation coefficient of the shielding layer, and al represents the preset redundant thickness.
5. A shielding room characterized in that a wall surface of the shielding room is provided with a shielding layer, the thickness of which is determined according to the method of any one of claims 1-3.
6. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1-3.
7. An electronic device, comprising:
a memory having a computer program stored thereon;
A processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1-3.
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