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Complementary carrying network for transmission electron microscope

A transmission electron microscope and complementary technology, applied in the field of loading net, can solve the problems of wasting sample change efficiency and testing efficiency, not being popularized, purchasing and maintenance of rapid vacuum equipment, etc., so as to improve sample preparation efficiency and save time and cost Effect

Pending Publication Date: 2019-03-15
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, about one-third of the TEM use time is wasted on sample preparation and sample replacement, especially the current high-voltage TEM can only test one sample at a time, and the sample is placed on the ordinary circular copper grid and then placed in the vacuum chamber vacuuming inside
However, the current mainstream transmission electron microscope cannot achieve fast vacuuming, and the vacuuming time is long, which greatly wastes the efficiency of sample change and testing.
The purchase and maintenance of fast vacuuming equipment is extremely expensive, and it is not popular at present

Method used

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  • Complementary carrying network for transmission electron microscope
  • Complementary carrying network for transmission electron microscope
  • Complementary carrying network for transmission electron microscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 as figure 2 As shown, the complementary loading net used in the transmission electron microscope is surrounded by two semicircular complementary supporting meshes 1 butted to form a circle, and the outer edge of the semicircular complementary supporting mesh 1 is provided with an arc edge 2 , the arc-shaped edges 2 of the two semicircular complementary support meshes 1 form a circular edge circle.

[0028] The mesh of one of the semicircular complementary supporting meshes 1 is circular, the mesh of the other semicircular complementary supporting mesh 1 is square, and the butt joint sides of the two semicircular complementary supporting meshes 1 are zigzag. When the two semicircular complementary support meshes 1 are docked, their zigzag edges snap together.

Embodiment 2

[0029] Example 2, such as image 3 As mentioned above, the complementary loading net used in the transmission electron microscope is surrounded by two semicircular complementary supporting meshes 1 butted to form a circle, and the outer edge of the semicircular complementary supporting mesh 1 is provided with an arc edge 2 , the arc-shaped edges of the two semicircular complementary support meshes 1 form a circular edge circle. The abutting sides of the two semicircular complementary support meshes 1 are all linear.

[0030] The mesh of one of the semicircular complementary supporting meshes 1 is circular, the mesh of the other semicircular complementary supporting mesh 1 is square, and the arc edge 2 of the butt joint side of the two semicircular complementary supporting meshes 1 Bonded by gluing double-sided tape.

Embodiment 3

[0031] Example 3, such as Figure 4 As mentioned above, the complementary loading net used in the transmission electron microscope is surrounded by two semicircular complementary supporting meshes 1 butted to form a circle, and the outer edge of the semicircular complementary supporting mesh 1 is provided with an arc edge 2 , the arc-shaped edges of the two semicircular complementary support meshes 1 form a circular edge circle. The abutting sides of the two semicircular complementary support meshes 1 are all linear.

[0032] The mesh of one of the semicircular complementary supporting meshes 1 is circular, the mesh of the other semicircular complementary supporting mesh 1 is square, and the arc edge 2 of the butt joint side of the two semicircular complementary supporting meshes 1 One end is provided with a groove 2a, and the other end is provided with a protrusion 2b matching the groove 2a, and the protrusion 2b snaps into the groove 2a during splicing.

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Abstract

The invention discloses a complementary carrying network for a transmission electron microscope. The complementary carrying network for the transmission electron microscope is characterized in that semicircular complementary supporting meshes or sector complementary supporting meshes are spliced into a circular mesh; all semicircular complementary supporting meshes or sector complementary supporting meshes are provided with mesh pores with the same or different shapes; adjacent semicircular complementary supporting meshes or adjacent sector complementary supporting meshes are integrally blocked through blocking structures or adhered through adhering structures. With the adoption of the complementary carrying network, a sampling preparation efficiency can be improved on the premise that a measuring sample stability is not broken, and thus the purpose of reducing the time cost is achieved.

Description

technical field [0001] The invention relates to an object-carrying net used in a transmission electron microscope, in particular to a complementary object-carrying net used in a transmission electron microscope. Background technique [0002] The copper grid usually used in TEM experiments is the grid that carries the sample. If the carrier net is made of copper, it is called copper net. If it is nickel, molybdenum, gold, or nylon, it is called nickel net, molybdenum net, gold net, nylon net, etc. accordingly. [0003] The carrier network is used alone, also known as "bare network". Mainly used in biological sample preparation, it can be used with a microtome to take samples with a "bare net" in a sink. Then spray carbon or gold, and then enter the electron microscope observation. When preparing most TEM samples, in order to ensure that the sample can be carried on the "carrier net", an organic film is covered on the "carriage net", which is called "support film". This ki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/2204G01N23/2202
CPCG01N23/2202G01N23/2204
Inventor 王煜关永鑫张慧娟
Owner CHONGQING UNIV