Novel domestic gamma spectrometer based on nuclear power field

Abstract

The utility model relates to the technical field of nuclear power, and discloses a novel domestic gamma spectrometer based on the nuclear power field, which comprises a sample placing frame, sliding table modules are arranged on two sides of the inner wall of the sample placing frame, and mechanical grippers are arranged on the surfaces of the sliding table modules. According to the novel domestic gamma spectrometer based on the nuclear power field, a sample is grasped and loosened through the mechanical gripper, a lead chamber door is opened and closed through the lead chamber, sample information is printed on the sample in batches in advance through an external bar code printer, and the sample information is automatically read and recognized through a code scanner. The device measures samples in batches, automatically replaces the samples, automatically equipment sample information, realizes automatic continuous unattended measurement and analysis of data, realizes the functions of automatic multiple measurement, delayed measurement, result analysis and the like through software setting, can automatically transmit data to other upper computer software, and improves the measurement efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to a new domestic gamma spectrometer based on the nuclear power field. Background Art

[0002] High-purity germanium gamma spectrometer is a type of gamma spectrometer, which is used to measure samples containing gamma nuclides in the laboratory. The structure mainly consists of a lead chamber, a lead chamber table, a high-purity germanium detector, a liquid nitrogen tank, a computer, etc. The liquid nitrogen tank is placed directly below the lead chamber table, the lower cold end of the high-purity germanium detector is immersed in the low-temperature liquid nitrogen tank, and the upper probe end of the high-purity germanium detector is fixed in the lead chamber cavity. The measurement steps are to manually open the lead chamber door, place the sample to be measured on the detection end, manually close the lead chamber door, input the sample information on the computer, configure the parameters, start measuring the sample, and identify the type of nuclide by detecting the gamma rays of different energies emitted by the gamma nuclides and give the nuclide activity.

[0003] When faced with batches of samples to be tested, existing gamma spectrometers require frequent manual opening and closing of the lead chamber door to change samples and configure parameters. Samples can only be measured within a limited working time and cannot be seamlessly connected for continuous measurement. The measurement time is long and the efficiency is low. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a new domestic gamma spectrometer based on the nuclear power field, which has the advantages of batch printing of sample information through a barcode printer, automatic reading and identification of sample information, automatic opening and closing of the lead chamber door and automatic replacement of samples by a robot, thereby solving the problems raised in the background technology.

[0005] The utility model provides the following technical scheme: a new domestic gamma spectrometer based on the field of nuclear power, comprising a sample placing rack, slide modules are arranged on both sides of the inner wall of the sample placing rack, a mechanical gripper is arranged on the surface of the slide module, the sample placing rack is fixedly installed on one side of the inner wall of the sample placing rack, a liquid nitrogen tank is arranged at the bottom end of the interior of the sample placing rack, a lead chamber is installed on the top of the liquid nitrogen tank, an electric push rod is arranged on the surface of the lead chamber, the side of the electric push rod is fixedly connected with the sample placing rack, a high-purity germanium detector is arranged inside the lead chamber, and the high-purity germanium detector is connected to the liquid nitrogen tank.

[0006] Preferably, a first heat dissipation net is provided at the upper ends of both sides of the sample display rack, and a second heat dissipation net is provided at the lower ends of both sides of the sample display rack.

[0007] Preferably, two fifth cabinet doors are hinged on the upper end of the equipment body cavity, a first cabinet door is hinged on the left middle end of the equipment body cavity, and the number of the first cabinet doors is two groups; a second cabinet door is hinged on the left lower end of the equipment body cavity, and the number of the second cabinet doors is two groups.

[0008] Preferably, the bottom of the sample display rack is fixedly connected with auxiliary legs.

[0009] Preferably, a third cabinet door is hingedly connected to the middle end of the right side of the equipment body cavity, and a fourth cabinet door is hingedly connected to the lower end of the right side of the equipment body cavity.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] This new domestic gamma spectrometer based on the nuclear power field uses a lead chamber to shield gamma rays in the environment, provides a low-background measurement environment for sample measurement in the lead chamber cavity, measures gamma rays in samples through a high-purity germanium detector, converts the signal output by the high-purity germanium detector into energy spectrum data through a digital multi-channel analyzer, analyzes the energy spectrum data through a computer and spectrum analysis software to obtain measurement results, grasps and releases samples through a mechanical gripper, moves samples in different directions in space through a slide module in the x\y\z direction, drives the slide module to move through a servo motor, opens and closes the lead chamber door through the lead chamber, prints sample information on samples in batches in advance through an external barcode printer, and automatically reads and identifies sample information through a barcode scanner. Compared with the existing technology, the device has the advantages of batch measuring samples, automatically changing samples, automatically collecting sample information, and realizing automatic continuous unattended measurement and analysis of data. It realizes automatic multiple measurements, delayed measurement, result analysis and other functions through software settings, and can be automatically transmitted to other host computer software, thereby improving measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure;

[0014] Figure 3 For this utility model Figure 1 The left side structural diagram of .

[0015] In the figure: 1. Sample display rack; 2. Slide module; 3. Mechanical gripper; 4. Barcode scanner; 5. Electric push rod; 6. Lead chamber; 7. High-purity germanium detector; 8. Liquid nitrogen tank; 9. Equipment body; 10. First cabinet door; 11. Second cabinet door; 12. Third cabinet door; 13. Fourth cabinet door; 14. First heat dissipation net; 15. Second heat dissipation net; 16. Auxiliary support legs; 17. Fifth cabinet door. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 A new type of domestic gamma spectrometer based on the field of nuclear power, including a sample rack 1, a slide module 2 is arranged on both sides of the inner wall of the sample rack 1, a mechanical gripper 3 is arranged on the surface of the slide module 2, the sample rack 1 is fixedly installed on one side of the inner wall of the sample rack 1, a liquid nitrogen tank 8 is arranged at the bottom end of the sample rack 1, a lead chamber 6 is installed on the top of the liquid nitrogen tank 8, the gamma rays in the environment are shielded by the lead chamber 6, and a low-background measurement environment is provided for the sample measurement in the lead chamber 6 cavity, and an electric push rod 5 is arranged on the surface of the lead chamber 6 The side of the electric push rod 5 is fixedly connected with a sample rack 1, and a high-purity germanium detector 7 is arranged inside the lead chamber 6. The lead chamber 6 is used to shield the gamma rays in the environment, and a low-background measurement environment is provided for the sample measurement in the lead chamber 6. The high-purity germanium detector 7 is connected to the liquid nitrogen tank 8. The upper ends of both sides of the sample rack 1 are provided with a first heat dissipation net 14, and the lower ends of both sides of the sample rack 1 are provided with a second heat dissipation net 15. The upper end of the cavity of the equipment body 9 is hinged with two fifth cabinet doors 17, and the left middle end of the cavity of the equipment body 9 is hinged with a first Cabinet door 10, the number of the first cabinet door 10 is two groups, the second cabinet door 11 is hinged at the lower left end of the cavity of the equipment body 9, the number of the second cabinet door 11 is two groups, the bottom of the sample display rack 1 is fixedly connected with an auxiliary support leg 16, the middle right end of the cavity of the equipment body 9 is hinged with a third cabinet door 12, and the lower right end of the cavity of the equipment body 9 is hinged with a fourth cabinet door 13. The sample is grasped and released by a mechanical gripper 3, and the sample is moved in different directions in space by the slide module 2 in the x\y\z direction. The slide module 2 is driven to move by a servo motor, and the lead chamber door is opened and closed by the lead chamber 6. The sample information is printed on the sample in batches in advance by an external barcode printer, and the sample information is automatically read and identified by the scanner 4. Compared with the prior art, the device has the advantages of batch measuring samples, automatically changing samples, automatically storing sample information, realizing automatic continuous unattended measurement and analysis data, and realizing automatic multiple measurements, delayed measurement, result analysis and other functions through software settings, which can be automatically transmitted to other host computer software, thereby improving measurement efficiency.

[0018] Working principle: During the operation, the operator uses an external barcode printer to print sample information on the samples in batches in advance, and then places the samples on the sample display rack 1. The slide module 2 in the x\y\z direction is used to move the samples in different directions in space, and then the movable slide module 2 is used to control the grasping and loosening of the samples, and the samples are grasped to the position of the scanner 4. The scanner 4 automatically reads and identifies the sample information, and the lead chamber 6 is used to shield the gamma rays in the environment, providing a low-background measurement environment for the sample measurement in the lead chamber 6. The high-purity germanium detector 7 is used to measure the gamma rays in the sample, and the signal output by the high-purity germanium detector 7 is converted into energy spectrum data through a digital multi-channel analyzer. The energy spectrum data is analyzed by a computer and spectrum analysis software to obtain the measurement results.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of domestic gamma spectrometer based on the nuclear power field, characterized in that: The invention comprises a sample placing rack (1), wherein slide modules (2) are arranged on both sides of the inner wall of the sample placing rack (1), a mechanical gripper (3) is arranged on the surface of the slide module (2), the sample placing rack (1) is fixedly installed on one side of the inner wall of the sample placing rack (1), a liquid nitrogen tank (8) is arranged at the bottom of the sample placing rack (1), a lead chamber (6) is installed on the top of the liquid nitrogen tank (8), an electric push rod (5) is arranged on the surface of the lead chamber (6), the side of the electric push rod (5) is fixedly connected to the sample placing rack (1), a high-purity germanium detector (7) is arranged inside the lead chamber (6), and the high-purity germanium detector (7) is connected to the liquid nitrogen tank (8).

2. A new type of domestic gamma spectrometer based on the nuclear power field according to claim 1, characterized in that: The upper ends of both sides of the sample display rack (1) are provided with first heat dissipation nets (14), and the lower ends of both sides of the sample display rack (1) are provided with second heat dissipation nets (15).

3. A new type of domestic gamma spectrometer based on the nuclear power field according to claim 1, characterized in that: Two fifth cabinet doors (17) are hingedly connected to the upper end of the cavity of the equipment body (9), a first cabinet door (10) is hingedly connected to the middle end of the left side of the cavity of the equipment body (9), and the number of the first cabinet door (10) is two groups; a second cabinet door (11) is hingedly connected to the lower end of the left side of the cavity of the equipment body (9), and the number of the second cabinet door (11) is two groups.

4. A new type of domestic gamma spectrometer based on the nuclear power field according to claim 1, characterized in that: The bottom of the sample display rack (1) is fixedly connected with an auxiliary support leg (16).

5. A new type of domestic gamma spectrometer based on the nuclear power field according to claim 1, characterized in that: A third cabinet door (12) is hingedly connected to the middle right end of the cavity of the equipment body (9), and a fourth cabinet door (13) is hingedly connected to the lower right end of the cavity of the equipment body (9).

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