Personal dosage device based on FAPbBr3 crystal

Abstract

The invention discloses an FAPbBr3 crystal-based personal dose device, which comprises an electrode part and a shell part, and compared with a traditional Geiger counter, the FAPbBr3 crystal-based personal dose device can realize accurate measurement in both low-dose and high-dose environments, overcomes the problem of response saturation of the Geiger counter in high-dose environments, improves the detection capability in the low-dose environment, and improves the detection accuracy of the FAPbBr3 crystal-based personal dose device. The FAPbBr3 crystal can distinguish radiation photons with different energies, the requirement for a power supply system is reduced, meanwhile, the overall size and weight of equipment are reduced, and portability is improved. The shell part made of the aluminum alloy material provides physical protection for internal components, and the stability and the reliability in a severe environment are enhanced. When radiation particles or rays penetrate through the FAPbBr3 crystal, radiation energy is directly converted into quantifiable electric signals, then the electric signals are analyzed and recorded through the data processing part, and a more accurate, reliable and high-adaptability personal radiation protection solution is provided.

Description

Technical Field

[0001] The present application relates to the technical field of dosimeters, and in particular to a personal dosimeter based on FAPbBr3 crystals. Background Art

[0002] In recent years, personal dosimeters have been widely used in medical, nuclear industry and personal radiation protection in radioactive environments. The personal dosimeters widely used in the current market mainly use Geiger counters as the core counting elements. Although such instruments have realized basic radiation measurement functions, their application has significant limitations, which restricts their use in high-precision, wide dynamic range and complex environments. As a gas discharge detector, the Geiger counter relies on the electron and ion pairs formed after the gas molecules are ionized by radiation, and avalanche discharge occurs under the action of a strong electric field to generate an output signal. However, this mechanism has nonlinear characteristics, which leads to response saturation problems at high radiation doses and cannot accurately measure the dose in strong radiation fields. In addition, the sensitivity of the Geiger counter is relatively low, especially at low dose levels, and its detection ability of weak radiation is limited, which affects the measurement accuracy.

[0003] Moreover, the insufficient energy resolution of the Geiger counter is also an important disadvantage. Since this type of detector cannot distinguish between radiation photons of different energies, it only records the number of radiation events and ignores the radiation energy information. Therefore, it is impossible to analyze the energy spectrum distribution in a complex radiation field, which is particularly disadvantageous in an environment where multiple radiation types coexist. In addition, the mechanical structure and working mode of the Geiger counter also affect its portability and environmental adaptability. Geiger tubes usually require a voltage of up to hundreds of volts to drive, which puts higher requirements on the power supply system. At the same time, the Geiger counter is sensitive to external conditions such as temperature, humidity and pressure, has poor stability in extreme environments, and is easily affected by external interference, resulting in measurement errors. Summary of the invention

[0004] In view of the defects existing in the prior art, the present application provides a personal dosimeter based on FAPbBr3 crystal to solve the problem that the personal dosimeter based on Geiger counter in the prior art cannot distinguish radiation of different energies, resulting in low monitoring accuracy.

[0005] The above-mentioned purpose of the present application is mainly achieved through the following technical solutions:

[0006] A personal dosing device based on FAPbBr3 crystal, the personal dosing device comprising:

[0007] An electrode member, comprising a crystal body, and a first electrode and a second electrode distributed on the top surface and the bottom surface of the crystal body, wherein the crystal body is a FAPbBr3 single crystal material;

[0008] The shell member includes a bottom plate and a cover body which enclose and form an accommodating space. The electrode member is arranged in the accommodating space, and a third electrode and a fourth electrode which are electrically connected to the first electrode and the second electrode are arranged on the bottom plate. The shell member is made of aluminum alloy.

[0009] In an optional embodiment, the personal dosage device further comprises a data processing component, the housing component is connected to the data processing component, and the data processing component is provided with a copper pad electrically connected to the third electrode and the fourth electrode.

[0010] In an optional embodiment, the data processing component includes a circuit board and a processing unit, the processing unit and the copper pad are electrically connected to the circuit board respectively, and the processing unit is used to receive and process data from the electrode component.

[0011] In an optional embodiment, a power supply is provided on the circuit board, and the power supply is electrically connected to the data processing component.

[0012] In an optional embodiment, a switch is provided on the circuit board.

[0013] In an optional embodiment, the first electrode is a carbon electrode, and the second electrode is a bismuth metal electrode.

[0014] In an optional embodiment, the first electrode is formed on the top surface of the crystal body by thermal evaporation deposition, and the bismuth metal electrode is formed on the bottom surface of the crystal body by chemical vapor deposition.

[0015] In an optional embodiment, the first electrode and the third electrode are electrically connected via wire bonding.

[0016] In an optional embodiment, a silver metal sheet having one end extending to the outside of the crystal body is electrically connected to the second electrode, and the silver metal sheet is electrically connected to the fourth electrode via wire bonding.

[0017] In an optional embodiment, the personal dosage device further comprises a shell, the shell comprising a detachable first part and a second part, the shell is provided with a cavity for accommodating the shell member and the data processing member, and the first part and / or the second part are provided with perforations corresponding to the positions of the shell member and the data processing member.

[0018] Compared with the prior art, the advantages of this application are:

[0019] The personal dose device based on FAPbBr3 crystal in the present application includes an electrode part and a shell part. Compared with the traditional Geiger counter, the FAPbBr3 single crystal material has higher sensitivity and can achieve accurate measurement in both low-dose and high-dose environments. Overcoming the problem of response saturation of the Geiger counter at high doses and improving the detection capability in low-dose environments, the FAPbBr3 crystal can distinguish radiation photons of different energies and provide information about the energy spectrum distribution in the radiation field. While recording the number of radiation events, the type and intensity of radiation can also be analyzed, which makes up for the shortcomings of the Geiger counter in this regard. Compared with the Geiger tube that requires high voltage drive, the FAPbBr3 single crystal material can operate at a lower voltage, reducing the requirements for the power supply system, while also reducing the overall size and weight of the device and improving portability. The shell part of the aluminum alloy material provides physical protection for the internal components and enhances the stability and reliability in harsh environments. When radiation particles or rays pass through the FAPbBr3 crystal, it triggers the generation of electron-hole pairs. These electrons and holes move to the first electrode and the second electrode respectively under the action of the external electric field, thereby forming a current signal. It allows the device to directly convert radiation energy into quantifiable electrical signals, which can then be analyzed and recorded through data processing components, providing a more accurate, reliable and adaptable personal radiation protection solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of a disassembled personal dosage device provided in an embodiment of the present application;

[0022] Figure 2 A top view of a circuit board provided in an embodiment of the present application;

[0023] Figure 3 A cross-sectional view of a housing member provided in an embodiment of the present application;

[0024] In the figure: 100, electrode member; 101, crystal body; 102, first electrode; 103, second electrode; 200, shell member; 201, bottom plate; 202, cover; 203, third electrode; 204, fourth electrode; 301, copper pad; 302, circuit board; 303, processing unit; 304, power supply; 305, switch; 306, silver metal sheet; 400, shell; 401, first part; 402, second part; 403, perforation. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structures and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

[0026] like Figure 1 , Figure 3 As shown, Figure 1 This is a schematic diagram of the disassembly of the personal dosage device provided in the embodiment of the present application. Figure 3 This is a cross-sectional view of a housing 200 provided in an embodiment of the present application, a personal dosing device based on FAPbBr3 crystal, the personal dosing device comprising an electrode 100 and a housing 200, wherein:

[0027] like Figure 1 , Figure 3 As shown, the electrode member 100 includes a crystal body 101, and a first electrode 102 and a second electrode 103 distributed on the top and bottom surfaces of the crystal body 101. The crystal body 101 is a FAPbBr3 single crystal material; the FAPbBr3 single crystal material is selected because it can provide high sensitivity and accurate response in a wide range of radiation intensity. The first electrode 102 is provided on the top surface of the FAPbBr3 single crystal material, and the second electrode 103 is provided on the bottom surface. The two electrodes are designed to effectively collect the current signal generated by the movement of electron-hole pairs caused by radiation, ensuring efficient signal capture and transmission.

[0028] like Figure 1 , Figure 3 As shown, the shell member 200 includes a bottom plate 201 and a cover body 202 which enclose and form an accommodating space, the electrode member 100 is arranged in the accommodating space, and the bottom plate 201 is provided with a third electrode 203 and a fourth electrode 204 which are electrically connected to the first electrode 102 and the second electrode 103, and the shell member 200 is made of aluminum alloy.

[0029] The shell 200 protects the sensitive electrode member 100 inside from the external environment. It includes a base plate 201 and a cover body 202, which provide physical protection for the electrode member 100. In the accommodation space formed by the base plate 201 and the cover body 202, the electrode member 100 is safely placed to avoid the influence of external factors such as humidity and temperature changes. In addition, a third electrode 203 and a fourth electrode 204 are provided on the base plate 201, which correspond to the first electrode 102 and the second electrode 103 in the electrode member 100 and are electrically connected. It ensures that the electrical signal can be smoothly transmitted from the electrode member 100 to the interface on the base plate 201, and then the data can be further processed or analyzed.

[0030] The housing 200 is made of aluminum alloy material, which is not only light and easy to carry, but also has good corrosion resistance and mechanical strength, which is very important for personal dosimeters that need to be used in various environments, and can maintain a stable working state even in relatively harsh working environments.

[0031] Compared with traditional Geiger counters, FAPbBr3 single crystal material has higher sensitivity and can achieve accurate measurement in both low-dose and high-dose environments. It overcomes the problem of response saturation of Geiger counters at high doses and improves the detection capability in low-dose environments.

[0032] Due to its semiconductor properties, FAPbBr3 crystals can distinguish radiation photons of different energies and provide information about the energy spectrum distribution in the radiation field. It can not only record the number of radiation events, but also analyze the type and intensity of radiation, making up for the shortcomings of Geiger counters in this regard.

[0033] Compared with Geiger tubes that require high voltage to drive, FAPbBr3 single crystal materials can operate at lower voltages, reducing the requirements for the power supply 304 system, while also reducing the overall size and weight of the device and improving portability.

[0034] When radiation particles or rays pass through the FAPbBr3 crystal, electron-hole pairs are generated. These electrons and holes move toward the first electrode 102 and the second electrode 103 respectively under the action of the external electric field, thereby forming a current signal. This allows the device to directly convert radiation energy into a quantifiable electrical signal, which is then analyzed and recorded by the data processing unit.

[0035] Specifically, the electrode member 100 includes a first electrode 102 located on the top surface of the FAPbBr3 crystal body 101 and a second electrode 103 on the bottom surface. The two electrodes are used to capture the current changes caused by radiation. The housing member 200 includes a bottom plate 201 and a cover 202 to enclose a containing space to ensure that the electrode member 100 is in a protected environment. The third electrode 203 and the fourth electrode 204 on the bottom plate 201 are connected to the first electrode 102 and the second electrode 103 for transmitting signals to the data processing member for further processing and displaying the measurement results.

[0036] like Figure 1 , Figure 2 As shown, Figure 2 This is a top view of a circuit board 302 provided in an embodiment of the present application. In an optional embodiment, the personal dosage device further includes a data processing component, the housing 200 is connected to the data processing component, and a copper pad 301 electrically connected to the third electrode 203 and the fourth electrode 204 is provided on the data processing component.

[0037] The data processing unit is connected to the housing unit 200, ensuring that the data collected from the electrode unit 100 can be processed quickly and effectively. Specifically, a copper pad 301 is provided on the data processing unit, and the copper pad 301 is electrically connected to the third electrode 203 and the fourth electrode 204 in the housing unit 200. This allows the current signal detected by the electrode unit 100 to be directly transmitted to the data processing unit, thereby achieving instant analysis of the radiation information.

[0038] like Figure 1 , Figure 2 As shown, in an optional embodiment, the data processing component includes a circuit board 302 and a processing unit 303, and the processing unit 303 and the copper pad 301 are electrically connected to the circuit board 302 respectively, and the processing unit 303 is used to receive and process data from the electrode component 100.

[0039] Multiple functional modules can be integrated on the circuit board 302. The processing unit 303 is electrically connected to the copper pads 301 through the circuits on the circuit board 302, and is responsible for receiving the original electrical signal from the electrode member 100 and processing the original electrical signal. The processing process usually involves operations such as signal amplification, filtering, and digital conversion to facilitate subsequent data analysis and storage. The processing unit 303 can not only monitor the radiation level in real time, but also evaluate the safety level of the current environment according to preset standards or algorithms, and provide instant feedback to the user.

[0040] like Figure 1 , Figure 2 As shown, in an optional embodiment, a power supply 304 is provided on the circuit board 302, and the power supply 304 is electrically connected to the data processing component.

[0041] In order to ensure the independent operation capability of the data processing unit, a power supply 304 is also integrated on the circuit board 302. The device can work normally without relying on the external power supply 304, which greatly improves the flexibility and convenience of use. The power supply 304 not only provides the necessary power support, but also can be configured with an intelligent management system to optimize energy consumption and extend the service life of the device. For example, it automatically enters a low power consumption mode when not in use, or issues a warning to prompt the user to charge or replace the battery in time when the battery is low.

[0042] like Figure 1 , Figure 2 As shown, in an optional embodiment, the circuit board 302 is provided with a switch 305, and the circuit board 302 is provided with a switch 305 to facilitate the user to control the operating state of the device. Through a simple on / off operation, the user can easily start or pause the working process of the device, which saves energy and reduces unnecessary wear.

[0043] In an optional embodiment, the first electrode 102 is a carbon electrode, and the second electrode 103 is a bismuth metal electrode. Carbon is selected as the material of the first electrode 102 because it has good electrical conductivity and chemical stability, which helps to improve detection efficiency and signal quality. The bismuth metal electrode, due to its unique physical properties, such as low melting point and good electrical conductivity, can reduce the impact on the FAPbBr3 crystal body 101 while ensuring efficient signal transmission.

[0044] In an optional embodiment, the first electrode 102 is formed on the top surface of the crystal body 101 by thermal evaporation deposition, and the bismuth metal electrode is formed on the bottom surface of the crystal body 101 by chemical vapor deposition. Close contact between the first electrode 102, the second electrode 103 and the crystal body 101 is ensured, thereby enhancing electrical performance and reliability.

[0045] In an optional embodiment, the first electrode 102 and the third electrode 203 are electrically connected by wire bonding. In order to ensure reliable electrical connection between the first electrode 102 and the third electrode 203, wire bonding technology is used. Wire bonding is a microelectronic packaging process used to connect electrode pins inside an integrated circuit chip to an external circuit or substrate. It improves reliability and can adapt to complex geometric shapes.

[0046] In an optional implementation, the second electrode 103 is electrically connected to a silver metal sheet 306 having one end extending to the outside of the crystal body 101 , and the silver metal sheet 306 is electrically connected to the fourth electrode 204 via wire bonding.

[0047] like Figure 1 , Figure 3 As shown, a silver metal sheet 306 with one end extending to the outside of the crystal body 101 is electrically connected to the second electrode 103. This not only simplifies the manufacturing process, but also improves the mechanical stability of the overall structure. The electrical connection between the silver metal sheet 306 and the fourth electrode 204 is also achieved through wire bonding. As an excellent conductor, the silver metal sheet 306 helps to reduce resistance and improve the efficiency of electrical signal transmission.

[0048] like Figure 1 , Figure 3 As shown, in an optional embodiment, the personal dosage device further comprises a housing 400, the housing 400 comprises a detachable first part 401 and a second part 402, a cavity for accommodating the housing member 200 and the data processing member is provided in the housing 400, and a through hole 403 corresponding to the position of the housing member 200 and the data processing member is provided on the first part 401 and / or the second part 402.

[0049] The housing 400 is divided into a detachable first part 401 and a second part 402 for easy maintenance and upgrading. A cavity is provided inside the housing 400 for accommodating the housing member 200 and the data processing member to provide protection. In addition, perforations 403 are provided on the first part 401 and / or the second part 402. These perforations 403 correspond to the positions of the housing member 200 and the data processing member to reduce the shielding effect of the housing 400 on radiation and facilitate operation and data transmission at the corresponding positions.

[0050] It should be understood that the terms first, second, etc. are only used to distinguish descriptions and should not be understood as indicating or suggesting relative importance. Although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit without departing from the scope of the exemplary embodiments of the present invention.

[0051] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another relationship between associated objects, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0052] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside" and the like indicate orientations or positional relationships that are customarily placed when the disclosed product is used, or are orientations or positional relationships that are customarily understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The terms used herein are only used to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates the opposite meaning. It should also be understood that the terms "include", "comprising", "including", and / or "comprising" when used herein specify the existence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the existence or increase of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0055] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, it should be understood by those of ordinary skill in the art that the exemplary embodiments may be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid making the exemplary embodiments unclear.

[0056] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

[0057] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Claims

1. A personal dosing device based on FAPbBr3 crystal, characterized in that: The personal dosing device comprises: An electrode member, comprising a crystal body, and a first electrode and a second electrode distributed on the top surface and the bottom surface of the crystal body, wherein the crystal body is a FAPbBr3 single crystal material; The shell member includes a bottom plate and a cover body which enclose and form an accommodating space. The electrode member is arranged in the accommodating space, and a third electrode and a fourth electrode which are electrically connected to the first electrode and the second electrode are arranged on the bottom plate. The shell member is made of aluminum alloy.

2. The personal dosing device based on FAPbBr3 crystal as claimed in claim 1, characterized in that: The personal dosage device further comprises a data processing component, the housing component is connected to the data processing component, and the data processing component is provided with a copper pad electrically connected to the third electrode and the fourth electrode.

3. The personal dosing device based on FAPbBr3 crystal as claimed in claim 2, characterized in that: The data processing component includes a circuit board and a processing unit. The processing unit and the copper pad are electrically connected to the circuit board respectively. The processing unit is used to receive and process data from the electrode component.

4. The personal dosing device based on FAPbBr3 crystal as claimed in claim 3, characterized in that: The circuit board is provided with a power supply, and the power supply is electrically connected to the data processing component.

5. The personal dosing device based on FAPbBr3 crystal as claimed in claim 4, characterized in that: A switch is arranged on the circuit board.

6. The personal dosing device based on FAPbBr3 crystal as claimed in claim 2, characterized in that: The first electrode is a carbon electrode, and the second electrode is a bismuth metal electrode.

7. The personal dosing device based on FAPbBr3 crystal as claimed in claim 6, characterized in that: The first electrode is formed on the top surface of the crystal body by thermal evaporation deposition, and the bismuth metal electrode is formed on the bottom surface of the crystal body by chemical vapor deposition.

8. The personal dosing device based on FAPbBr3 crystal as claimed in claim 2, characterized in that: The first electrode and the third electrode are electrically connected via wire bonding.

9. The personal dosing device based on FAPbBr3 crystal as claimed in claim 2, characterized in that: The second electrode is electrically connected to a silver metal sheet having one end extending to the outside of the crystal body, and the silver metal sheet is electrically connected to the fourth electrode through wire bonding.

10. The personal dosing device based on FAPbBr3 crystal as claimed in claim 2, characterized in that: The personal dosage device further comprises a shell, wherein the shell comprises a detachable first part and a second part, wherein a cavity for accommodating the housing member and the data processing member is provided in the shell, and the first part and / or the second part are provided with perforations corresponding to the positions of the housing member and the data processing member.

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