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A kind of radionuclide carrier film and its preparation method

A technology of radionuclide and carrier film, which is applied in the field of preparation of radioactive film sources, can solve problems such as pollution, waste, and low emission rate of alpha particles in capacity, and achieve the effects of simple production method, uniform distribution, and avoiding large doses of radiation

Active Publication Date: 2017-11-28
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

[0006] In order to solve the problems of pollution, waste, nuclide loading reliability, capacity and low alpha particle emission rate in the existing nuclide carrier preparation technology, the present invention proposes a radionuclide carrier film and its preparation method. Methods The radionuclide is uniformly mixed in the solution for preparing the carrier film, and then evenly covered on the solid base film, and the radionuclide carrier film can be formed after drying; at the same time, the ingenious application of the frame not only directly limits the range of the solution, and provides attachment points for the membrane

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  • A kind of radionuclide carrier film and its preparation method
  • A kind of radionuclide carrier film and its preparation method

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preparation example Construction

[0043] A method for preparing a radionuclide-loaded film, comprising the following steps:

[0044] 1) Preparation of basement membrane components:

[0045] 1.1) Prepare a base film with a thickness of 1-10 μm by using organic or inorganic substances with high temperature resistance and strong corrosion resistance;

[0046] 1.2) Two square or circular frames with a thickness of 0.3-0.8mm are prepared using organic or inorganic materials;

[0047] 1.3) Bonding the base film flatly between the two frames to form a base film assembly;

[0048] 2) Prepare the solution for the carrier membrane:

[0049]2.1) Polyvinyl alcohol, polyacrylamide or polyvinylpyrrolidone materials are used to prepare an aqueous solution according to the required mass ratio;

[0050] 2.2) Prepare a radionuclide aqueous solution according to the required concentration;

[0051] 2.3) Mix the above two aqueous solutions according to the required ratio, and stir evenly to obtain the solution for the carrier...

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Abstract

The invention relates to a radioactive nuclide carrier membrane and a preparation method thereof. The carrier membrane comprises an upper frame, a lower frame, a base membrane and a carrier membrane, wherein the upper and the lower frames are of the same structure; the base membrane is flatly bonded between the upper and the lower frames. To prepare the radioactive nuclide carrier membrane, radioactive nuclide is uniformly mixed in a solution for preparing the carrier membrane, and then is uniformly coated on a solid base membrane, and the radioactive nuclide carrier membrane is formed after the radioactive nuclide is dried. Moreover, due to the ingenious application of the frames, the range of the solution is directly limited, and an attachment point is provided for the membrane.

Description

technical field [0001] The invention relates to the preparation technology of radioactive sources in the field of nuclear technology, in particular to the preparation technology of radioactive film sources. Background technique [0002] The main structure of the neutron generator in the invention patent application "a controllable isotope neutron (body) generator" with the application number CN201310295989.9 is a cylinder, which realizes the optimized plug-in controllable neutron generation function. The invention patent application with the application number 2014104289627 "a circular controllable isotope neutron source" improves the utilization rate of neutrons. Both of the above two patent technologies involve the "plated sheet" and "carrier ring" carrying alpha particle-emitting nuclide. It is one of the core components of the neutron source. [0003] The current radionuclide loading methods mainly include electroplating method and solution evaporation to dryness natur...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21G4/02
CPCG21G4/02
Inventor 李雪松王武尚杨静余功硕张佳媚欧阳晓平
Owner NORTHWEST INST OF NUCLEAR TECH