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Preparation method of apatite resin sheet for external detector method

A resin sheet and apatite technology, which is applied in the field of apatite resin sheet preparation, can solve problems such as shedding

Pending Publication Date: 2019-12-10
BEIJING RES INST OF URANIUM GEOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The automatic grinding method of the polishing machine is often used. The automatic polishing machine needs to put 6 samples at a time. For samples with different particle sizes, the same grinding time and intensity may cause the particles with small particle sizes to fall off.

Method used

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  • Preparation method of apatite resin sheet for external detector method
  • Preparation method of apatite resin sheet for external detector method

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0034] figure 1 A method for preparing an apatite resin sheet for the external detector method according to an embodiment of the present invention is shown, which includes the following steps:

[0035]Step 1: Weigh 30g of EpoFix epoxy resin into a beaker, add 6.9g of the corresponding curing agent, stir the glass rod clockwise for 5 minutes to make it evenly mixed, put the beaker into a vacuum chamber, and draw a vacuum for 30-40 minutes , and wait until no air bubbles emerge from the resin. Apply mold release agent on the inside of the two glass plates, pour the vacuumed epoxy resin solution into the glass plates, place 0.8mm aluminum sheets on the four corners of the glass plates, and slowly cover it ...

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Abstract

The invention provides a preparation method of an apatite resin sheet for an external detector method. The preparation method mainly comprises the following steps: preparing a blank resin sheet with the size of 15mm*18mm*0.8 mm; according to the particle size and the particle number, bonding apatite to a glass slide in different modes; dropwise adding epoxy resin, covering with the blank resin sheet, and embedding the apatite into the resin sheet; grinding off redundant resin at the edge part of the resin sheet by using 40-micron diamond abrasive paper; grinding out most apatite particles by using 1200 # silicon carbide abrasive paper, and observing the grinding degree while grinding; and performing automatic polishing with cloth having sizes of 9 [mu]m, 6 [mu]m, 3 [mu]m and 1 [mu]m to finally obtain the resin sheet which can be used for apatite fission track dating by an external detector method. Compared with the existing preparation method, the preparation method provided by the invention can ensure the preparation effect of the apatite fission track dating resin sheet, and effectively improves the precision of the fission track method.

Description

technical field [0001] The invention belongs to the fields of isotope geochronology and thermochronology, and in particular relates to a method for preparing an apatite resin sheet used in an external detector method. Background technique [0002] Fission track dating is an important technical method in isotope geochronology and thermochronology. The theoretical basis of this method is the 238 U undergoes nuclear fission, producing two fission daughters with opposite movements, which pass through the surrounding medium under the action of the mutually repulsive Coulomb force, forming a radiation damage effect, that is, the fission track. Fission tracks cannot be observed with the naked eye, but can be observed under an optical microscope after chemical etching. Apatite contains relatively high U and Th radioactive elements, and its partial annealing zone temperature is 60-120 °C, which corresponds to the hydrocarbon generation temperature of oil and gas, making apatite the ...

Claims

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Application Information

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IPC IPC(8): G01N1/36G01N1/28G01N1/32
CPCG01N1/286G01N1/32G01N1/36G01N2001/2866G01N2001/366
Inventor 张佳刘汉彬李军杰金贵善张建锋韩娟石晓
Owner BEIJING RES INST OF URANIUM GEOLOGY
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