Device for manufacturing high-resolution alpha radiation source with magnetohydrodynamics electro-deposition method

A technology of magnetohydrodynamics and electrodeposition, which is applied in the direction of electrodes, electrolytic processes, electrolytic components, etc., can solve the problem of low energy resolution of radioactive sources, and achieve accelerated mass transfer rate, increased value transfer rate, and deposition efficiency high effect

Pending Publication Date: 2017-09-22
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in some radioactive substances containing multiple radionuclides, the energy spectra of these radionuclides are superimposed, and the energy resolution of radioactive sources prepared by traditional electrodeposition methods is not high in the alpha energy spectrum measurement, so it is urgent to establish A new source-making method and source-making device that can significantly improve the energy resolution of the source

Method used

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  • Device for manufacturing high-resolution alpha radiation source with magnetohydrodynamics electro-deposition method
  • Device for manufacturing high-resolution alpha radiation source with magnetohydrodynamics electro-deposition method
  • Device for manufacturing high-resolution alpha radiation source with magnetohydrodynamics electro-deposition method

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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 , figure 2 As shown, the high-precision two-dimensional positioning support 1 includes a base plate, a vertical fixing frame, and a vertical lifting arm. The electrodes and the electrode rotating motor are all arranged on the vertical lifting arm 6, and the vertical lifting arm 6 is controlled by the button on the external controller interface. Regulatory operation, and can realize its up and down movement by electrically adjusting the screw nut transmission device. The cleaned platinum anode wire is installed at the lower end of the electrode, and the platinum wire can be bent into different shapes. The permanent magnet control table 2 is installed on the bottom plate of the two-dimensional positioning bracket. Through the external controller of the high-precision two-dimensional positioning bracket, the lifting of the anode can be easily adjusted to adjust the distance between the anode and the cathode deposition source sheet. It can also be adjuste...

Embodiment 2

[0038] The device structure of this embodiment is basically the same as that of Embodiment 1. The difference from Embodiment 1 is that the vertical height of the anode is adjusted so that it is 7 mm away from the deposition source sheet; the rotation speed of the platinum electrode during the electrodeposition process is 50 r / min. Apply permanent magnets symmetrically on both sides of the deposition tank, the magnetic flux density of the two permanent magnets is 0.7T, and the distance between the center of the cathode deposition source sheet and the center of the axial surface of the permanent magnets on each side is 14mm. The device is left-right symmetrical, not only can apply magnetic field symmetrically on both sides of the deposition tank, but also can conveniently adjust the distance between the permanent magnet and the deposition tank, so as to realize the comprehensive study of the influence of different magnetic field sizes and different application methods on magnetohy...

Embodiment 3

[0040] The device structure of this embodiment is basically the same as that of Embodiment 1. The difference from Embodiment 1 is that the vertical height of the anode is adjusted so that it is 9 mm away from the deposition source sheet; the rotation speed of the platinum electrode during the electrodeposition process is 40 r / min. A permanent magnet is applied to one side of the deposition tank, the magnetic flux density of the permanent magnet is 0.7T, and the distance between the center of the cathode deposition source sheet and the center of the axial surface of the permanent magnet is 18mm.

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Abstract

The invention belongs to the technical field of manufacturing of radiation resources and particularly relates to a device for manufacturing a high-resolution alpha radiation source with a magnetohydrodynamics electro-deposition method. The structure of the device comprises a two-dimensional locating support and a permanent magnet regulating and controlling table top arranged on the two-dimensional locating support, a deposition groove containing deposition solution is formed in the middle of the permanent magnet regulating and controlling table top. The two sides of the deposition groove are provided with a magnet fixing plate and a displacement transmission device, wherein the magnet fixing plate is used for fixing a permanent magnet, and the displacement transmission device is used for adjusting the permanent magnet. An electrode is arranged on the upper portion of the two-dimensional locating support, and an anode wire is installed at the lower end of the electrode. The anode wire extends into the deposition solution from the top of the deposition groove. A cathode deposition source sheet and a cathode leading-out gasket which are in tight contact with each other are arranged at the bottom of the deposition groove, the bottom of the cathode leading-out gasket is connected with a cathode leading-out wire, and the cathode leading-out wire is connected with the negative electrode of a power source. When the device is used for manufacturing the alpha radiation source, good deposition efficiency and good energy resolution are obtained, and the operation safety can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of radioactive source preparation, and in particular relates to a device for preparing a high-resolution alpha radioactive source by a magnetohydrodynamic electrodeposition method. Background technique [0002] Alpha spectroscopy plays an important role in the qualitative and quantitative analysis of actinides. At present, α-spectroscopy has been widely used in radioactive measurement in various fields, such as nuclear safeguards analysis, nuclear safety, nuclear fission, nuclear data and environmental detection and other fields. When performing α energy spectrum measurement on α radiation sources, the measurement accuracy mainly depends on the quality of the prepared α radiation sources. High-quality solid radiation sources usually form a uniform thin layer of radioactive substances. Among the various techniques for preparing radioactive sources at present, electrodeposition is often used to prepare extrem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/00C25D17/00C25D17/10
CPCC25D7/00C25D17/00C25D17/10
Inventor 张鹏林敏徐利军张卫东陈义珍罗瑞夏文
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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