Thermoluminescent personal dose box

Abstract

The utility model relates to a thermoluminescent personal dose box which comprises an outer shell and an inner shell. The whole shell is cylindrical, and the two ends of the shell are hemispherical. The shell comprises an upper shell and a lower shell which are hermetically connected with each other; the inner shell comprises a dosage piece placing plate and a positioning plate, and a plurality of dosage piece placing grooves are formed in the dosage piece placing plate; a slot is formed in the positioning plate, and the dosage piece placing plate is inserted into the slot; the positioning plate is mounted in the shell; the whole shell is cylindrical, has an axisymmetric structure, and can meet the requirement of photon radiation for nondirectivity; the shell comprises an upper shell and a lower shell which are matched through a sealing ring to realize sealed connection, so that water and dust can be prevented from permeating; the dose box is made of a non-transparent material and has good light shielding performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiation dose monitoring, and in particular relates to a thermoluminescent personal dose box. Background Art

[0002] Thermoluminescence refers to the ability of certain substances to absorb and store ionizing radiation energy after exposure. When these substances are heated to a certain temperature, the stored energy is released as light, a phenomenon known as thermoluminescence. Personal thermoluminescent dosimeters utilize this principle to measure individual radiation doses. When a personal thermoluminescent dosimeter is exposed to radiation, the thermoluminescent material within it absorbs and stores the radiation energy. Subsequently, specialized measuring equipment heats the dosimeter, causing it to release the stored light signal. This light signal can be received by optical devices such as photomultiplier tubes and converted into electrical signals, which are then processed and recorded as radiation dose values.

[0003] Thermoluminescent personal dosimeters play an important role in a variety of fields. In radiation protection areas such as the nuclear industry and nuclear power plants, personal dose monitoring is a crucial means of ensuring worker safety. Wearing a thermoluminescent personal dosimeter allows for timely monitoring of radiation doses received by workers, helping to identify weaknesses in protection and implement appropriate countermeasures. Furthermore, thermoluminescent personal dosimeters are widely used in radiation protection and monitoring efforts in fields such as healthcare and environmental protection.

[0004] Natural environmental radiation has a complex composition, low levels, and is affected by multiple factors during on-site measurements. Therefore, in practical applications, a comprehensive consideration of these factors is crucial to ensure accurate measurement results and minimize errors. The characteristics of the dose cartridge itself, such as its material and sensitivity, can also introduce errors, so these factors must be fully considered during design and use.

[0005] Currently, the shortcomings of existing dosimeter packaging designs are as follows:

[0006] 1. Insufficient sealing. Existing dosimeter packaging boxes are mostly square boxes, which often have insufficient sealing. Impurities such as water and dust can easily penetrate, affecting the measurement accuracy and service life of the dosimeter. 2. Poor light protection performance. Direct sunlight may cause thermoluminescence information to degrade, affecting measurement accuracy. 3. Insufficient shape design and uneven directional response. Square or rectangular designs have large unevenness in directional response, resulting in significant differences in measured values ​​due to different radiation directions. Especially at low energies, below 100 keV, the directionality has a greater impact. To this end, a cylindrical design for the outer shell can reduce directional response errors and make the dosimeter's response to radiation more uniform in all directions. Utility Model Content

[0007] In response to at least one of the problems in the above-mentioned prior art, the purpose of the present utility model is to provide a thermoluminescent personal dose box, the shell of which is cylindrical as a whole and has an axially symmetrical structure, which can meet the non-directional requirements of photon radiation; the shell includes an upper shell and a lower shell, which are sealed and connected to prevent the infiltration of water and dust; the entire box body is made of non-transparent material and has good light-shielding properties.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A thermoluminescent personal dose box comprising:

[0010] The outer shell is cylindrical in shape as a whole, with hemispherical ends; the outer shell comprises an upper outer shell and a lower outer shell that are sealed to each other;

[0011] The inner shell includes a dose sheet placement plate and a positioning plate. The dose sheet placement plate is provided with a plurality of dose sheet placement slots. The positioning plate is provided with a slot in which the dose sheet placement plate is inserted. The positioning plate is installed in the outer shell.

[0012] Preferably, an annular sealing groove is provided on the outer wall of the upper shell, and a sealing ring is installed in the sealing groove.

[0013] Preferably, both sides of the inner walls of the upper shell and the lower shell are provided with sliding grooves, the two side walls of the positioning plate are provided with sliding rails, the positioning plate is installed in the shell, and the sliding rails are inserted into the sliding grooves.

[0014] Preferably, a plurality of the dose sheet placement grooves are opened on the dose sheet placement plate along the longitudinal center line, the dose sheet placement plate is installed in the shell, and the axis of the shell coincides with the longitudinal center line of the dose sheet placement plate.

[0015] Preferably, the dosage sheet placement slot is a T-shaped hole.

[0016] Preferably, both end surfaces of the dosage sheet placement plate are engraved with direction marks.

[0017] Preferably, a label is provided on the surface of the dosage sheet placement plate.

[0018] Preferably, the upper shell, the lower shell, the dose sheet placement plate and the positioning plate are all non-transparent parts.

[0019] Preferably, the upper shell and the lower shell are elastic plastic parts.

[0020] Preferably, an elastic clip is provided on the housing.

[0021] The utility model has the following advantages due to the adoption of the above technical solution:

[0022] The thermoluminescent personal dose box provided by the utility model has an overall cylindrical shell with an axisymmetric structure, which can meet the non-directional requirements of photon radiation, reduce directional response errors, and make the dose meter respond to radiation in all directions more uniformly; its shell includes an upper shell and a lower shell, which are sealed together by a sealing ring to prevent the infiltration of water and dust; the entire box body is made of non-transparent material and has good light-shielding properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a thermoluminescent personal dose box provided by one embodiment of the present utility model.

[0024] Figure 2 It is a longitudinal cross-sectional schematic diagram of the thermoluminescent personal dose box provided by this embodiment of the utility model.

[0025] Figure 3 This is a structural diagram of the assembly of the upper shell, the dosage sheet placement plate, and the positioning plate provided in this embodiment of the utility model.

[0026] Figure 4 It is a structural diagram of the assembly of the upper shell and the lower shell provided in this embodiment of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the dosage tablet placement plate provided in this embodiment of the utility model.

[0028] Figure 6 It is a structural schematic diagram of the positioning plate provided in this embodiment of the utility model.

[0029] In the accompanying drawings:

[0030] 1 is the upper shell, 2 is the lower shell, 3 is the dosage piece placement plate, 4 is the positioning plate, 5 is the dosage piece placement groove, 6 is the sealing groove, 7 is the label, 8 is the slide groove, 9 is the slide rail, 10 is the direction mark, and 11 is the elastic clip. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution, and advantages of the present invention more clearly apparent, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0032] In the description of the utility model, it needs to explain, the term "upper", "lower", "front", "back" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the system or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as the limitation of the utility model.

[0033] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "assemble", "arrange", "connect" should be broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication of two elements inside, for the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0034] The utility model provides a kind of thermoluminescence personal dose box, its shell is cylindrical as a whole, with axial symmetry structure, can satisfy the isotropic requirement of photon radiation photon;Shell includes upper shell and lower shell, both seal connection, can prevent the infiltration of water and dust;The whole box body is made of non-transparent material, with good light resistance.

[0035] Below, the utility model embodiment is explained in detail in conjunction with the drawings.

[0036] Embodiment

[0037] Please refer to Figures 1 to 6 The utility model provides a kind of thermoluminescence personal dose box, including shell and inner shell;

[0038] Shell is cylindrical as a whole, and its two ends are hemispherical;Shell includes upper shell 1 and lower shell 2 that are sealed to each other;

[0039] Inner shell includes dose sheet placement plate 3 and positioning plate 4, and a plurality of dose sheet placement grooves 5 are formed on dose sheet placement plate 3;The insertion slot is formed on the positioning plate 4, and the dose sheet placement plate 3 is inserted into the insertion slot;Positioning plate 4 is installed in shell.

[0040] Specifically, shell is cylindrical as a whole, has symmetrical shape, relative to the shell of existing square box, can ensure that radiation photon is evenly irradiated on detector, and detector is dose sheet;Satisfy the isotropic requirement of photon.

[0041] Please refer to Figure 4 In the embodiment, annular sealing groove 6 is formed on the outer wall of upper shell 1.

[0042] Specifically, in the connection area between the upper shell 1 and the lower shell 2, an annular sealing groove 6 is provided on the outer wall of the upper shell 1, and a sealing ring is installed in the sealing groove 6, which is a rubber sealing ring; when the upper shell 1 and the lower shell 2 are connected together, the sealing ring ensures the firmness of the connection between the upper shell 1 and the lower shell 2, and at the same time plays a sealing role, which can prevent water and dust from penetrating into the interior of the shell.

[0043] In this embodiment, slide grooves 8 are provided on both sides of the inner walls of the upper shell 1 and the lower shell 2, and slide rails 9 are provided on the two side walls of the positioning plate 4. The positioning plate 4 is installed in the shell, and the slide rails 9 are inserted into the slide grooves 8.

[0044] Specifically, a slide groove 8 is provided on both sides of the inner walls of the upper shell 1 and the lower shell 2. The slide groove 8 can be square. When the positioning plate 4 is installed in the shell, the positioning plate 4 can be stably fixed in the shell through the cooperation of the slide groove 8 and the slide rail 9, and the two ends of the positioning plate 4 are respectively stuck between the two hemispherical inner end faces of the upper shell 1 and the lower shell 2 to prevent the positioning plate 4 from moving up and down in the shell.

[0045] In this embodiment, a plurality of dose sheet placement slots 5 are opened on the dose sheet placement plate 3 along the longitudinal center line. The dose sheet placement plate 3 is installed in the housing, and the axis of the housing coincides with the longitudinal center line of the dose sheet placement plate 3 .

[0046] Specifically, when the dose sheet placement plate 3 is inserted into the positioning plate 4 and the positioning plate 4 is installed in the housing, the dose sheet is located on the central axis of the housing and can better receive radiation photons from different directions.

[0047] Please refer to Figure 5 In this embodiment, the dosage piece placement groove 5 is a T-shaped hole. The outer diameter of the large hole of the T-shaped hole is slightly larger than the outer diameter of the dosage piece, ensuring that the dosage piece can be placed in the dosage piece placement groove 5 without causing large shaking therein; the small hole of the T-shaped hole is a through hole. When the dosage piece needs to be taken out, a thin rod is used to poke the dosage piece out through the small hole on the back of the dosage piece placement groove, which facilitates the removal of the dosage piece.

[0048] In this embodiment, both end surfaces of the dosage sheet placement plate 3 are engraved with direction marks 10 .

[0049] Specifically, the direction mark 10 can be an arrow. When the dose sheet placement plate 3 needs to be removed from the positioning plate 4, the direction of the dose sheet placement plate 3 can be determined by the direction mark 10 to prevent the dose sheet from falling from the dose sheet placement slot 5 and affecting the measurement results.

[0050] In this embodiment, a label 7 is provided on the surface of the dosage tablet placement plate 4, and the batch number is recorded by the label to facilitate subsequent recording.

[0051] In this embodiment, the upper shell 1, the lower shell 2, the dose sheet placing plate 3 and the positioning plate 4 are all non-transparent parts.

[0052] Specifically, the upper shell 2, the lower shell 3, the dose sheet placing plate 3 and the positioning plate 4 can be black or dark light-shielding materials with good light-shielding properties, ensuring that external lighting or sunlight cannot pass through the outer shell and the inner shell to irradiate the dose sheet, affecting the accuracy of the dose sheet monitoring results.

[0053] In this embodiment, the upper shell 1 and the lower shell 2 are plastic parts with elasticity, so that the shells have high strength and durability and can adapt to various harsh environmental conditions; when the lower shell 2 is inserted into the upper shell 1, the sealing ring can realize the sealed connection of the two; when it is necessary to disassemble the two, the upper shell 1 and the lower shell 2 are pulled apart by external force to complete the disassembly of the two.

[0054] In this embodiment, an elastic clip 11 is arranged on the shell.

[0055] Specifically, the elastic clip 11 is fixed to the upper shell 1, and the elastic clip 11 has an elastic steel sheet similar to a pen clip of a pen, so that the thermoluminescence environmental dosimeter can be attached to the pocket of a user through the elastic clip 11.

[0056] In the assembly of the thermoluminescence dose box of this embodiment, the dose sheet is first placed into the dose sheet placing groove 5, then the dose sheet placing plate 3 is inserted into the positioning plate 4, the positioning plate 4 is inserted into the upper shell 1 along the sliding groove, the sliding groove of the lower shell 2 is aligned with the sliding rail 9, and the lower shell 2 is pushed to buckle the lower shell 2 and the upper shell 1 together, thereby completing the assembly of the dose box.

[0057] In specific applications, the thermoluminescence dose box of this embodiment has good waterproof and dustproof performance and is especially suitable for outdoor distribution in the monitoring of the background level of gamma radiation in the environment around a power plant.

[0058] In the medical field, the thermoluminescence personal dose box of this embodiment can accurately measure the radiation dose in various environments in hospitals, helping medical staff to timely understand their own radiation exposure and thus take appropriate protective measures.

[0059] In scientific research laboratories, when researchers conduct radiation-related experiments, the light-shielding and isotropic design of the shell of the thermoluminescence personal dose box of this embodiment ensures the accuracy of the measurement results.

[0060] With the increasing attention to environmental quality and occupational health, the demand for radiation measurement will also increase. The thermoluminescence personal dose box of this embodiment helps to improve the accuracy and reliability of radiation measurement and provides strong support for environmental protection and occupational health.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A thermoluminescent personal dose box, characterized in that include: The outer shell is cylindrical in shape as a whole, with hemispherical ends; the outer shell comprises an upper outer shell and a lower outer shell that are sealed to each other; The inner shell includes a dose sheet placement plate and a positioning plate. The dose sheet placement plate is provided with a plurality of dose sheet placement slots. The positioning plate is provided with a slot in which the dose sheet placement plate is inserted. The positioning plate is installed in the outer shell.

2. The thermoluminescent personal dose box according to claim 1, characterized in that An annular sealing groove is provided on the outer wall of the upper shell, and a sealing ring is installed in the sealing groove.

3. The thermoluminescent personal dose box according to claim 1, characterized in that Slide grooves are provided on both sides of the inner walls of the upper shell and the lower shell, and slide rails are provided on the two side walls of the positioning plate. The positioning plate is installed in the shell, and the slide rails are inserted into the slide grooves.

4. The thermoluminescent personal dose box according to claim 1, characterized in that A plurality of the dose sheet placement grooves are opened on the dose sheet placement plate along the longitudinal center line. The dose sheet placement plate is installed in the shell. The axis of the shell coincides with the longitudinal center line of the dose sheet placement plate.

5. The thermoluminescent personal dose box according to claim 1, characterized in that The dosage sheet placement groove is a T-shaped hole.

6. The thermoluminescent personal dose box according to claim 1, characterized in that Both end surfaces of the dosage sheet placement plate are engraved with direction marks.

7. The thermoluminescent personal dose box according to claim 1, characterized in that The surface of the dosage sheet placement plate is provided with a label.

8. The thermoluminescent personal dose box according to claim 1, characterized in that The upper shell, the lower shell, the dose sheet placement plate and the positioning plate are all non-transparent parts.

9. The thermoluminescent personal dose box according to claim 1, characterized in that The upper shell and the lower shell are elastic plastic parts.

10. The thermoluminescent personal dose box according to claim 1, characterized in that An elastic clip is provided on the shell.

Images