Gamma ray detection probe

Abstract

The utility model relates to a gamma-ray detection probe which comprises a gamma-ray sensor, a sensor mounting seat, an electrical box and a signal processing board, the sensor mounting seat is fixedly connected with the electrical box; and a plurality of gamma-ray sensors are arranged, the plurality of gamma-ray sensors are embedded in the sensor mounting seat, and the plurality of gamma-ray sensors are uniformly distributed in a circumferential manner. The gamma-ray sensors are electrically connected with the signal processing board respectively; the signal processing board is used for being electrically connected with the single-chip microcomputer. The signal processing board is detachably fixed in the electrical box. When the gamma ray detection probe is used in cooperation with a single chip microcomputer, the single chip microcomputer can obtain the radiation intensity monitored by each gamma ray sensor, and a straight line formed by connecting the gamma ray sensor with the maximum radiation intensity and the gamma ray sensor with the minimum radiation intensity is the emission direction of gamma rays. The gamma ray detection probe component can judge whether gamma rays exist or not and can judge the source direction of the gamma rays.

Description

Technical Field

[0001] This utility model relates to the field of nuclear radiation detection equipment technology, and in particular to a gamma-ray detection probe. Background Technology

[0002] Gamma rays are electromagnetic waves characterized by extremely high energy and extremely short wavelengths. The most common definition of gamma rays is high-frequency ionizing radiation produced when transitions occur within the atomic nucleus. Gamma rays have extremely strong penetrating power and are commonly used in medical, industrial, and scientific research fields. Because gamma rays are radioactive, continuous detection of their source is necessary in many applications. Current technology primarily uses gamma-ray probes for detection; however, these probes can only detect the presence of gamma rays, not their direction of origin. Existing gamma-ray probes are typically individual units, making it impossible to use a microcontroller to determine the direction of gamma rays. Furthermore, single-sensor probes are susceptible to environmental factors, resulting in a low center of gravity (CPM), leading to inaccurate testing and relatively weak reliability. The low CPM of a single sensor also makes it inaccurate for testing weak gamma-ray signals. Therefore, determining the presence or absence of gamma rays, identifying their direction of origin, and achieving accurate testing under weak signal conditions are currently critical technical problems that need to be solved. Utility Model Content

[0003] Based on the above description, this utility model provides a gamma-ray detection probe to solve the technical problems of existing gamma-ray probes, which are usually set with a single sensor, cannot be matched with a microcontroller to determine the direction of gamma rays, and have inaccurate data under weak signals and lack of redundancy settings.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A gamma-ray detection probe includes: a gamma-ray sensor, a sensor mounting base, an electrical box, and a signal processing board;

[0006] The sensor mounting base is fixedly connected to the electrical box; multiple gamma-ray sensors are provided, and the multiple gamma-ray sensors are embedded in the sensor mounting base and are evenly distributed in a circle.

[0007] The gamma-ray sensors are electrically connected to the signal processing board; the signal processing board is used for electrical connection with the microcontroller; the signal processing board is detachably fixed inside the electrical box.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore: the signal processing board integrates the same number of signal processing circuits as the number of gamma-ray sensors, and the gamma-ray sensors are electrically connected to the microcontroller through the corresponding signal processing circuits; the signal processing circuits include: a first resistor, a second resistor, a first capacitor, a first diode, a second diode, a comparator, and a second capacitor;

[0010] The gamma-ray sensor is grounded through the first resistor; the gamma-ray sensor is connected to the input terminals of the first diode and the second diode respectively through the first capacitor; the input terminals of the first diode and the second diode are grounded through the second resistor respectively; the output terminal of the first diode is connected to the power supply, and the output terminal of the second diode is grounded; the input terminals of the first diode and the second diode are respectively connected to the input terminal of the comparator, and the output terminal of the comparator is connected to the microcontroller.

[0011] Furthermore, six gamma-ray sensors are provided.

[0012] Furthermore, both the first diode and the second diode are Schottky diodes.

[0013] Furthermore, it also includes: a mounting plate; the mounting plate is fixedly connected to the electrical box; the mounting plate has multiple mounting holes.

[0014] Furthermore, it also includes: a first reinforcing plate and a second reinforcing plate; the first reinforcing plate is fixedly connected to the electrical box and the mounting plate respectively; the second reinforcing plate is fixedly connected to the electrical box and the mounting plate respectively.

[0015] Compared with the prior art, the technical solution of this utility model has the following beneficial technical effects:

[0016] This invention provides a gamma-ray detection probe, in which a sensor mounting base is fixedly connected to an electrical box. Multiple gamma-ray sensors are embedded in the sensor mounting base and are evenly distributed circumferentially. Each gamma-ray sensor is electrically connected to a signal processing board, which is used for electrical connection to a microcontroller. The signal processing board is detachably fixed inside the electrical box. Because multiple gamma-ray sensors are embedded in the sensor mounting base and evenly distributed circumferentially, when used with a microcontroller, the microcontroller can acquire the radiation intensity monitored by each gamma-ray sensor. The straight line formed by connecting the gamma-ray sensor with the highest and lowest radiation intensity is the emission direction of the gamma rays. This gamma-ray detection probe can determine the presence or absence of gamma rays and also determine the direction of their source. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the gamma-ray detection probe structure provided in an embodiment of the present invention;

[0018] Figure 2 A circuit diagram of the signal processing circuit provided in an embodiment of this utility model. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0022] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0023] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0024] See Figure 1 This utility model provides a gamma-ray detection probe, which mainly includes: a gamma-ray sensor GO1, a sensor mounting base 2, an electrical box 3, and a signal processing board. The gamma-ray sensor GO1 is a Geiger tube, and the sensor mounting base 2 is used to mount the gamma-ray sensor GO1. The sensor mounting base 2 is fixedly connected to the electrical box 3. Multiple gamma-ray sensors GO1 are provided, embedded in the sensor mounting base 2, and evenly distributed in a circular pattern; for example, this embodiment uses six gamma-ray sensors GO1, evenly distributed on the same circumference. The spacing and relative position of each gamma-ray sensor GO1 are specifically set for the most effective configuration given the current number of sensors. The six gamma-ray sensors GO1 are arranged in a circular matrix, which greatly improves the angular response compared to a single sensor, and provides more accurate monitoring of radiation signals in all directions. Since the six sensors are independently configured, the probe has multiple redundancies, and can still operate normally even if one or more sensors fail, greatly improving reliability and environmental adaptability compared to a single sensor. Each gamma-ray sensor GO1 is electrically connected to a signal processing board; the signal processing board is used for electrical connection to a microcontroller; the signal processing board is detachably fixed inside the electrical box 3. When this gamma-ray detection probe is used in conjunction with a microcontroller, the microcontroller can acquire the radiation intensity monitored by each gamma-ray sensor GO1. The straight line formed by connecting the gamma-ray sensor GO1 with the highest radiation intensity to the gamma-ray sensor GO1 with the lowest radiation intensity is the emission direction of the gamma rays, pointing from the gamma-ray sensor GO1 with the highest radiation intensity to the gamma-ray sensor GO1 with the lowest radiation intensity. Theoretically, the more gamma-ray sensors GO1 are set, the more accurate the direction detection of gamma rays.

[0025] See Figure 1 and Figure 2The signal processing board integrates the same number of signal processing circuits as the gamma-ray sensor GO1. The gamma-ray sensor GO1 is electrically connected to the microcontroller through its corresponding signal processing circuit. The signal processing circuit includes: a first resistor R9, a second resistor R57, a first capacitor C19, a first diode D1, a second diode D2, a comparator U8.1, and a second capacitor. The gamma-ray sensor GO1 is grounded through the first resistor R9; the gamma-ray sensor GO1 is connected to the input terminals of both the first diode D1 and the second diode D2 through the first capacitor C19. The input terminals of both the first diode D1 and the second diode D2 are grounded through the second resistor R57. The output terminal of the first diode D1 is connected to a 3V power supply, and the output terminal of the second diode D2 is grounded; the input terminals of both the first diode D1 and the second diode D2 are connected to the input terminals of comparator U8.1, and the output terminal of comparator U8.1 is connected to the microcontroller. Both the first diode D1 and the second diode D2 are Schottky diodes. Comparator U8.1 also includes several matching components, such as the third resistor R4, the fourth resistor R8, the second capacitor C16, and the third capacitor C20. Their connections are as follows: Figure 2 As shown, this is existing technology and will not be described further here.

[0026] See Figure 1 In a preferred embodiment of this utility model, to facilitate the installation of the gamma-ray detection probe and other equipment, a mounting plate 4 is also provided. The mounting plate 4 is fixedly connected to the electrical box 3; the mounting plate 4 has multiple mounting holes 7, and the diameter, number, and distribution of the mounting holes 7 can be flexibly selected as needed.

[0027] See Figure 1 In a preferred embodiment of this utility model, to further increase the connection reliability of the mounting plate 4, a first reinforcing plate 5 and a second reinforcing plate 6 are also provided; the first reinforcing plate 5 is fixedly connected to the electrical box 3 and the mounting plate 4 respectively; the second reinforcing plate 6 is fixedly connected to the electrical box 3 and the mounting plate 4 respectively.

[0028] See Figure 1 The technical solution provided by this utility model embodiment has at least the following beneficial effects:

[0029] This utility model provides a gamma-ray detection probe, in which a sensor mounting base is fixedly connected to an electrical box. Multiple gamma-ray sensors are embedded in the sensor mounting base and are evenly distributed circumferentially. Each gamma-ray sensor is electrically connected to a signal processing board, which is used for electrical connection to a microcontroller. The signal processing board is detachably fixed inside the electrical box. Because multiple gamma-ray sensors are embedded in the sensor mounting base and evenly distributed circumferentially, when used with a microcontroller, the microcontroller can acquire the radiation intensity monitored by each gamma-ray sensor. The straight line formed by connecting the gamma-ray sensor with the highest and lowest radiation intensity is the emission direction of the gamma rays. This gamma-ray detection probe can determine the presence or absence of gamma rays and also the direction of their source. This utility model provides a gamma-ray detection probe with better angular response, meaning it can still detect even when part of the Geiger tube is blocked. Furthermore, the probe has redundancy, allowing it to continue detecting even when part of the Geiger tube is damaged.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gamma-ray detection probe, characterized in that: include: Gamma-ray sensor, sensor mounting base, electrical box and signal processing board; The sensor mounting base is fixedly connected to the electrical box; multiple gamma-ray sensors are provided, and the multiple gamma-ray sensors are embedded in the sensor mounting base and are evenly distributed in a circle. The gamma-ray sensors are electrically connected to the signal processing board; the signal processing board is used for electrical connection with the microcontroller; the signal processing board is detachably fixed inside the electrical box.

2. The gamma-ray detection probe according to claim 1, characterized in that: The signal processing board integrates the same number of signal processing circuits as the number of gamma-ray sensors, and the gamma-ray sensors are electrically connected to the microcontroller through the corresponding signal processing circuits. The signal processing circuit includes: a first resistor, a second resistor, a first capacitor, a first diode, a second diode, a comparator, and a second capacitor; The gamma-ray sensor is grounded through the first resistor; the gamma-ray sensor is connected to the input terminals of the first diode and the second diode respectively through the first capacitor; the input terminals of the first diode and the second diode are grounded through the second resistor respectively; the output terminal of the first diode is connected to the power supply, and the output terminal of the second diode is grounded; the input terminals of the first diode and the second diode are respectively connected to the input terminal of the comparator, and the output terminal of the comparator is connected to the microcontroller.

3. The gamma-ray detection probe according to claim 2, characterized in that: The gamma-ray sensor is provided in six units.

4. The gamma-ray detection probe according to claim 2, characterized in that: Both the first diode and the second diode are Schottky diodes.

5. The gamma-ray detection probe according to any one of claims 1-4, characterized in that: Also includes: Mounting plate; the mounting plate is fixedly connected to the electrical box; the mounting plate has multiple mounting holes.

6. The gamma-ray detection probe according to claim 5, characterized in that: Also includes: A first reinforcing plate and a second reinforcing plate; the first reinforcing plate is fixedly connected to the electrical box and the mounting plate respectively; the second reinforcing plate is fixedly connected to the electrical box and the mounting plate respectively.

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