Collimator and manufacturing method

A collimator and substrate technology, applied in the direction of using aperture/collimator, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of limited drilling preparation methods, difficult control of particle movement speed, and unachievable diameter , to achieve the effect of solving the problem of size uniformity and high precision, solving the problem of reliability and stability, and easy to control the accuracy of size

A collimator and substrate technology, applied in the direction of using aperture/collimator, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of limited drilling preparation methods, difficult control of particle movement speed, and unachievable diameter , to achieve the effect of solving the problem of size uniformity and high precision, solving the problem of reliability and stability, and easy to control the accuracy of size

CN108922646AActive Publication Date: 2018-11-30CHINA BUILDING MATERIALS ACAD
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  • Collimator and manufacturing method

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preparation example Construction

[0118] Adopting the glass rod tube nested drawing method, the preparation method of the collimator comprises the following steps:

[0119] (1) prepare skin glass and core glass respectively, through high temperature melting and clarification, obtain uniform skin glass melt and core glass melt respectively;

[0120] (2) The skin glass melt is mechanically drawn to form a skin prefabricated tube, the skin glass melt is formed into a skin preform through leakage, and the core glass melt is formed into a core preform through leakage;

[0121] (3) Nesting the skin prefabricated tube and the core prefabricated rod to form a tube-rod complex, drawing the tube-rod complex to form a monofilament of the tube-rod complex;

[0122] (4) Arranging the monofilaments of the tube-rod complex, binding them to obtain composite rods, and then drawing them to form composite filaments;

[0123] (5) drawing the skin preform to form a monofilament of the skin preform;

[0124] (6) Arranging the mon...

Embodiment 1

[0224] The collimator in this embodiment has a good match with tungsten material and glass material with similar expansion coefficient.

[0225] The preparation method of the collimator adopts a glass rod tube nested drawing method, comprising the following steps:

[0226] (1) prepare skin glass and core glass respectively:

[0227] Leather glass selection medium expansion glass, in terms of mass percentage, including: SiO 2 : 69.0%, B 2 o 3 : 23.5%, Al 2 o 3 : 3.0%, Li 2 O: 1.5%, Na 2 O: 2.0%, ZrO 2 : 1.0%, its expansion coefficient is 41×10 -7 / °C;

[0228] Core glass corresponding to skin glass, in mass percentage, including: B 2 o 3 : 44.0%, La 2 o 3 : 24.0%, SiO 2 : 23.5%, Al 2 o 3 : 3.5%, Na 2 O: 3.0%, K 2 O: 2.0%, its expansion coefficient is 55×10 -7 / °C;

[0229] (2) The skin glass is formed into a skin prefabricated tube by mechanical drawing. The inner diameter of the skin prefabricated tube is controlled at (32±0.5) mm, and the wall thickness of...

Embodiment 2

[0238] The collimator in this embodiment has a good match with stainless steel material or glass material with similar expansion coefficient.

[0239] The preparation method of the collimator adopts a glass rod tube nested drawing method, comprising the following steps:

[0240] (1) prepare skin glass and core glass respectively:

[0241] Leather glass chooses high-expansion glass, in terms of mass percentage, including: SiO 2 : 63.0%, B 2 o 3 : 4.5%, Al 2 o 3 : 1.0%, BaO: 8.0%, CaO: 4.5%, MgO: 3.0%, Na 2 O: 10.0%, K 2 O: 5.0%, ZrO 2 : 1.0%; its expansion coefficient is 92×10 -7 / °C;

[0242] Core glass corresponding to skin glass, in mass percentage, including: B 2 o 3 : 31.0%, BaO: 21.0%, La 2 o 3 : 28.0%, SiO 2 : 10.0%, Al 2 o 3 : 1.0%, Na 2 O: 5.0%, K 2 O: 4.0%, its expansion coefficient is 102×10 -7 / °C;

[0243] (2) The skin glass is formed into a skin prefabricated tube by mechanical drawing. The inner diameter of the skin prefabricated tube is contr...

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Abstract

The invention relates to a collimator and a manufacturing method. The collimator includes a base body of a flat plate shape, wherein the upper surface and lower surface of the base body are parallel to each other, at least a through hole which penetrates through the upper surface and the lower surface and has a pore diameter of 1-100 [mu]m is formed in the base body, and the base body is made of glass. A glass blank plate is prepared by using a glass rod tube nested drawing method, optical cold processing is conducted, and then chemical etching is performed so as to obtain the collimator. After the glass of the collimator is determined, core glass matched with the determined glass is designed, and the core glass is removed through acid etching, wherein the core glass is mainly used as a filling material of micropores during manufacture so as to ensure the roundness of the micropores. Through the collimator, the collimation efficiency of particles and stability of particle movement canbe improved effectively, the scattering angle of the particles is reduced, and conditions for high stability, high reliability and miniaturization of atomic clocks, ray cameras and other precision equipment are created.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic non-metallic materials, and in particular relates to a collimator and a preparation method. Background technique [0002] In some precision instruments, medical devices and electronic devices, the collimated motion of atoms, electrons, ions, molecules and other particles has significantly affected the stability, reliability and service life of the devices. The collimated particle motion can form a particle beam with a small scattering angle, which is conducive to the formation of a stable and long-lasting gas flow or liquid flow, thereby providing a highly stable signal source or a gas and liquid particle beam for related devices. Therefore, the collimation rate of particles can determine the performance of the device to a certain extent. [0003] As the core component of the particle collimation system, the collimator is responsible for the key role of particle collimation and e...

Claims

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Application Information

Patent Timeline
30 Nov 2018
Publication
CN108922646A
IPC
G21K1/02; C03B37/027; C03B37/14; C03C3/089; C03C3/091; C03C3/093; C03C15/00
CPC
C03B37/027; C03B37/14; C03C3/089; C03C3/091; C03C3/093; C03C15/00; G21K1/02
Inventors
黄永刚; 贾金升