Regulating device for preparing high-resolution alpha radiation source by magnetohydrodynamic electrodeposition

Abstract

The invention belongs to radiation source preparation technologies and particularly relates to a regulating device for preparing a high-resolution alpha radiation source through a magnetohydrodynamics electrodeposition method. The regulating device structurally comprises a two-dimension positioning support and a permanent magnet regulating table top arranged on the two-dimension positioning support. The permanent magnet regulating table top comprises a base which is provided with a hole for fixing a deposition tank. A magnet fixing plate used for fixing a permanent magnet and a displacement drive device used for adjusting the position of the permanent magnet are arranged on the two sides of the hole. The upper portion of the two-dimension positioning support is provided with an electrode and an electrode rotary motor, and a controller for adjusting the electrode height and the rotation speed is arranged outside the two-dimension positioning support. An anode wire is installed at the lower end of the electrode. The center of the electrode is located over the center of the deposition tank fixing hole in the base of the permanent magnet regulating table top. According to the regulating device, conditions in the preparation process of the radiation source can be accurately adjusted and controlled, the deposition repeatability and operation safety can be improved, and meanwhile, the deposition efficiency and energy resolution of the radiation source are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of radioactive source preparation, and in particular relates to a control device for preparing a high-resolution alpha radioactive source by a magnetohydrodynamic electrodeposition method. Background technique [0002] With the increasing use of nuclear energy in recent years, alpha spectroscopy has been widely used in radioactivity measurements in various fields, such as nuclear safeguards analysis, nuclear safety, nuclear fission, nuclear data, and environmental monitoring. Alpha spectroscopy plays an increasingly important role in the qualitative and quantitative analysis of actinides. At present, 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. Electrodeposition is commonly used to prepare extrem...

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Problems solved by technology

Electrodeposition is commonly used to prepare extremely thin solid radioactive sources in various techniques for preparing radioactive sources at present, but in some radioactive substances containing multiple radionuclides, their energy spectra are superimposed, and prepared by traditional electrodeposition methods The energy resolution of the radioactive source in the α-energy spectrum measurement is not high, and the operation is still based on the practical experience of manual operation. Therefore, not only the probability of the operator being exposed to radioactivity is relatively high, but the accuracy of the operation and the repeatability of the deposition results are also very poor. Therefore, It is urgent to establish a new source method and operation control device that can significantly improve the energy resolution of the source

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