Photo-luminescence sampling and storing device capable of shielding cosmic rays

Abstract

The utility model discloses a photoluminescence sampling storage device capable of shielding cosmic rays, and relates to the technical field of photoluminescence dating sampling. The device structurally comprises a sampling tube, and a cylindrical clamping groove for placing a storage tube is formed in the sampling tube. The storage tube is made of boron nitride ceramic materials capable of shielding cosmic rays, and a 45-degree outer edge beveled opening is formed in the front end of the sampling tube. The closed cover at the front end of the storage tube is made of boron nitride ceramic capable of shielding cosmic rays, during sampling operation, the rear cover of the sampling tube can be beaten, the front end of the sampling tube is inserted into a sample, the sample enters the storage tube arranged in the sampling tube, the storage tube is taken out in a dark environment, and the closed cover covers the front end of the storage tube. It is ensured that the whole sample collection and storage process is not affected by cosmic rays and high-energy particles, and it is ensured that photoluminescence dating data finally obtained in a laboratory is accurate and reliable.

Description

Technical Field

[0001] The utility model relates to an optically stimulated luminescence sampling and storage device capable of shielding cosmic rays, and belongs to the fields of geochronology and archaeological chronology. Background Art

[0002] Optically stimulated luminescence (OSL) dating technology can obtain the age of geological samples since their last burial, and is widely used in Paleolithic archaeology, ancient earthquakes, ancient landslides, ancient human sites, ancient barrier lake research, and global climate change. The principle of OSL dating is that after burial, quartz and feldspar minerals in buried sediments are affected by the radiation produced by the decay of radioactive elements (such as uranium, thorium and potassium) in the surrounding environment, accumulating radiation energy, and the laboratory light beam excites the sample to emit a light signal. The accumulated radiation dose is determined by measuring the luminescence intensity, and then the burial age of the sample is calculated.

[0003] Existing OSL sampling devices can achieve light-proof sampling, but they do not shield the interference of cosmic rays or high-energy particles on samples. Usually, field work time is long, and samples are easily exposed to cosmic rays for a long time in the field, which seriously interferes with the accuracy of dating data. Especially in scientific expeditions to the Qinghai-Tibet Plateau and polar regions (Antarctic and Arctic) where the air is thin, it is more susceptible to astronomical activities, such as magnetic storm events (the disturbance of the earth's magnetic field by high-speed plasma ejected from the solar corona) and strong interference from solar wind (the high-energy charged particle flow from the sun, which can cause aurora phenomena). Since the polar expedition activities are relatively long, it takes at least several months and up to one or two years for samples to enter the laboratory for OSL dating. Therefore, if the influence of cosmic rays on samples is not shielded, it will seriously affect the irradiation dose of samples, thereby affecting the accuracy of OSL dating results. However, the materials used in existing OSL collection devices have no shielding function for cosmic rays. From collecting samples to storing samples, they are exposed to cosmic rays throughout the process, especially lacking shielding for high-energy particle flows in extreme solar winds. Utility Model Content

[0004] The purpose of the utility model is to provide a photoluminescence sample collection and storage device that can shield cosmic rays, so as to solve the problem that existing photoluminescence collection devices cannot eliminate the interference of cosmic rays, especially high-energy particles under extreme astronomical events (solar wind).

[0005] The technical solution adopted by the utility model is as follows:

[0006] A light-stimulated luminescence sample sampling tool comprises a circular tubular sampling tube, a cylindrical sample storage tube is built in the circular tubular sampling tube, and the sampling tube

[0007] The front end is open, and the rear cover of the sampling tube is a card slot rotating structure. The rear cover can be unscrewed to take out the storage tube, and the front end closing cover of the storage tube can seal the sample in the storage tube.

[0008] The sampling tube is made of steel tube, and its model is DN65 / 70. The inner diameter of the sampling tube is slightly larger than the outer diameter of the storage tube. The front end of the storage tube has a circular opening, the outer edge of the opening has a thread, and the rear end is closed. There is a closed cover that matches the diameter of the front end of the storage tube. The inner edge of the closed cover has a thread. After the sampling is completed, in a light-proof environment, open the back cover of the sampling tube, take out the storage tube at the rear end of the sampling tube, and close the front end of the storage tube with the closed cover. The storage tube and the front end of the storage tube are made of boron nitride ceramic material that can shield cosmic rays. The front end of the sampling tube adopts a 45° outer edge bevel opening to enhance the drilling sampling capability.

[0009] A photoluminescence sampling and storage device capable of shielding cosmic rays comprises: a sampling tube: a cylindrical card slot for a built-in storage tube is provided in the sampling tube; a storage tube: the storage tube can be placed in the storage tube through the rear end of the sampling tube to directly store the sample drilled by the sampling tube during the sampling process; a front end of the sampling tube: the front end of the sampling tube is an oblique opening with an angle of 45 degrees to the outer edge, which is convenient for the sampling tube to be inserted into the sample during the sampling process; a rear cover of the sampling tube: after the storage tube is placed in the sampling tube, the rear cover of the sampling tube is placed in the rear end of the sampling tube, and the rear cover of the sampling tube is hit to allow the sampling tube to be inserted into the sample for sampling; a front end sealing cover of the storage tube: the front end sealing cover of the storage tube can be sealed at the front end of the storage tube; the sampling tube is made of a DN65 / 70 steel pipe with an outer diameter of 75.5 mm; the front end of the sampling tube is an oblique opening with an angle of 45 degrees to the outer edge, and the rear end opening can be used to place the rear cover.

[0010] By adopting the above technical solution, the utility model can achieve the following effects:

[0011] In the utility model, by hitting the rear end of the sampling tube, the front end of the sampling tube is inserted into the sample, and the sample to be collected will enter the built-in storage tube, which can effectively avoid exposure of the sample. Since the material used for the storage tube is boron nitride ceramic, it can effectively shield the interference of cosmic high-energy rays, allowing the sample to be stored for a long time under field working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 This is a schematic diagram of the overall structure of an optically stimulated luminescence sampling and storage device that can shield cosmic rays.

[0013] In the figure: 1. sampling tube; 2. storage tube; 3. front end of sampling tube; 4. rear cover of sampling tube; 5. front end sealing cover of storage tube. DETAILED DESCRIPTION

[0014] In order to illustrate the overall technical solution of the utility model, the utility model is further explained in detail below in conjunction with the accompanying drawings and embodiments. It should be clear that the specific embodiments described here are only used to explain the technical solution of the utility model and are not used to limit the utility model.

[0015] Example 1

[0016] An optically stimulated luminescence sampling and storage device capable of shielding cosmic rays, such as Figure 1 As shown, it includes a sampling tube 1, a storage tube 2, a front end 3 of the sampling tube, a rear cover 4 of the sampling tube, and a front end sealing cover 5 of the storage tube.

[0017] In a feasible technical solution, the sampling tube 1 is made of a steel tube model DN65 / 70 (outer diameter 75.5 mm).

[0018] The storage tube 2 is a boron nitride ceramic tube. The outer diameter of the storage tube 2 is slightly smaller than the inner diameter of the sampling tube 1, and the wall thickness of the built-in storage tube 2 is equal to the thickness of the inner groove of the circular ring of the sampling tube 1, ensuring that the storage tube 2 can be stuck in the built-in groove after being placed at the rear end of the sampling tube 1.

[0019] When the rear end of the sampling tube 1 is struck, the front end 3 of the sampling tube is gradually inserted into the sample, so that the sample is sent into the built-in storage tube 2.

[0020] Open the rear end of the sampling tube 1 in a light-proof environment, take out the storage tube 2, and immediately screw the front end closure cover 5 of the storage tube that matches the front end of the storage tube 2 onto the front end of the storage tube 2. It is required that the front end outer edge of the storage tube 2 has a thread, and the inner wall of the front end closure cover 5 of the storage tube has a thread that matches the storage tube 2. Ensure that the front end closure cover 5 of the storage tube can be screwed onto the front end of the storage tube 2 through the thread, so that the sample is completely enclosed in the boron nitride ceramic storage tube that can shield cosmic rays.

[0021] After the entire field work is completed, the sample storage tubes will be sent to the OSL dating laboratory to ensure that the entire sample collection and storage process is not affected by cosmic rays and high-energy particles, and that the OSL dating data finally obtained in the laboratory is accurate and reliable.

[0022] The above examples are only used to explain the design scheme and ideas of the utility model, but are not limited to this example. All key technical issues involved in the utility model: the technical scheme of shielding cosmic rays and high-energy particles by using materials that shield cosmic rays should belong to the principles and spirit of the new model, and all replacements and improvements made only on the basis of this principle should be included in the protection scope of the utility model.

Claims

1. An optically stimulated luminescence sampling and storage device capable of shielding cosmic rays, characterized in that: include: Sampling tube: The sampling tube has a cylindrical slot with a built-in storage tube; Storage tube: The storage tube can be placed in the storage tube through the rear end of the sampling tube to directly store the sample drilled by the sampling tube during the sampling process; Front end of the sampling tube: The front end of the sampling tube is an oblique opening at a 45-degree angle to the outer edge, which is convenient for the sampling tube to be inserted into the sample during the sampling process; Sampling tube rear cover: after putting the storage tube into the sampling tube, put the sampling tube rear cover into the rear end of the sampling tube, and hit the sampling tube rear cover to insert the sampling tube into the sample for sampling; storage tube front end closing cover: the storage tube front end closing cover can be closed at the front end of the storage tube.

2. The optically stimulated luminescence sampling and storage device capable of shielding cosmic rays according to claim 1, characterized in that: The sampling tube is made of DN65 / 70 steel tube with an outer diameter of 75.5 mm. The front end of the sampling tube is an oblique opening at a 45-degree angle to the outer edge, and the rear end opening can be used to place the rear cover.

3. The optically stimulated luminescence sampling and storage device capable of shielding cosmic rays according to claim 1, characterized in that: The storage tube adopts a boron nitride ceramic tube that can shield cosmic rays; the outer diameter of the storage tube is smaller than the inner diameter of the sampling tube, and the wall thickness of the built-in storage tube is equal to the thickness of the inner groove of the sampling tube ring, ensuring that the storage tube can be stuck in the built-in groove after being placed at the rear end of the sampling tube.

4. The optically stimulated luminescence sampling and storage device capable of shielding cosmic rays according to claim 1, characterized in that: The front outer edge of the storage tube has a thread, and the inner wall of the closing cover has a thread matching the storage tube, ensuring that the closing cover can be screwed onto the front end of the storage tube through the thread, so that the sample is completely enclosed in the boron nitride ceramic storage tube that can shield cosmic rays.

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