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63Ni radioactive source and preparation method thereof

A radioactive source and pH value technology, applied in the field of 63Ni radioactive source and its preparation, can solve the problems of low bonding degree of Ni radioactive source layer, low repeatability, poor stability of radioactive source layer, etc.

Inactive Publication Date: 2020-11-20
HTA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the invention is to overcome the prior art and adopt nickel chloride as the main electroplating solution preparation 63 When the Ni radiation source exists, the substrate and 63 The Ni radiation source layer has a low degree of bonding, 63 Ni radiation source layer has poor stability and low repeatability, and provides a kind of electroplating solution that adopts nickel chloride as the main body to prepare 63 Method for Ni radioactive source and prepared by the method 63 Ni radioactive source

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  • 63Ni radioactive source and preparation method thereof

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preparation example Construction

[0008] provided by the invention 63 The preparation method of the Ni radiation source comprises cleaning the surface of the substrate and placing it in the electroplating solution for electroplating to form on the substrate 63 Ni radiation source layer, the electroplating solution contains 63 NiCl 2 , cerium trichloride, pH buffer and conductive salt and the balance is water.

[0009] said 63 NiCl 2 as main salt. said 63 NiCl 2 Specifically, you can use 63 NiCl 2 used in the form of feed liquid, the 63 NiCl 2 Feed liquid is 63 NiCl 2 of hydrochloric acid solution. said 63 NiCl 2 The activity of the feed liquid is preferably 600-1000mCi. In the plating solution 63 NiCl 2 The concentration is preferably 0.5g / L~4g / L, for example, 0.5g / L, 1g / L, 1.5g / L, 2g / L, 2.5g / L, 3g / L, 3.5g / L, 4g / L Wait.

[0010] The cerium trichloride as an additive can improve the coating deposition speed and coating quality. The concentration of cerium trichloride in the electroplating s...

preparation example

[0019] In the following preparation examples, comparative preparation examples and examples:

[0020] (1) Electroplating equipment includes: 1 electroplating tank; 1 power supply, dual-channel DC stabilized power supply (0-30V, 0-10A); 1 platinum electrode; 1 radioactive source ionization current tester, GLZ-5.

[0021] (2) The main reagents include: boric acid, potassium chloride, hydrochloric acid, sodium hydroxide, cerium trichloride, A.R; 63 Ni liquid, 63 NiCl 2 Soluble in HCl, nuclear purity >99%, specific activity ~10Ci / g.

preparation example 1

[0023] This preparation example is used to illustrate the preparation method of the electroplating solution provided by the present invention.

[0024] Add 40 g of analytically pure H to 1 L of distilled water 3 BO 3 , stirred until completely dissolved, then added 20 grams of analytically pure KCl, stirred until completely dissolved, then added 0.8 g of cerium trichloride, stirred until dissolved, and obtained solution A. Take 40 ml of solution A, add to it 63 Ni liquid ( 63 NiCl 2 Hydrochloric acid solution, the same below) 600mCi, and finally adjust the pH value to 1.5-2 with 1mol / L HCl or 1mol / LNaOH solution to obtain the electroplating solution, which is recorded as D1. The plating solution D1 63 NiCl 2 The concentration of cerium trichloride is 1.5g / L, the concentration of cerium trichloride is 0.8g / L, H 3 BO 3 The concentration of KCl is 40g / L, the concentration of KCl is 20g / L, the balance is water, and the pH value is 1.5-2.

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Abstract

The invention belongs to the technical field of radioactive source preparation, and relates to a 63Ni radioactive source and a preparation method thereof. The preparation method of the 63Ni radioactive source comprises the following steps: thoroughly cleaning the surface of a substrate, and then placing the substrate into an electroplating solution and electroplating to form a 63Ni radioactive source layer on the substrate, wherein the electroplating solution contains 63NiCl2, cerous chloride, pH value buffer agent, conducting salt and the balance water. By adopting the method for preparing the 63Ni radioactive source, the combination degree of the substrate and the radioactive source layer can be increased and the stability of the radioactive source layer can be improved; and moreover, great repeatability is further achieved, the operation difficulty in an industrial production process can be lowered, batch production is facilitated, and the need of the society on 63Ni pure beta radioactive source is met.

Description

technical field [0001] The invention belongs to the technical field of radioactive source preparation and relates to a 63 Ni radioactive source and its preparation method. Background technique [0002] 63 Ni (nickel-63) radiation source is made of high-purity 63 Ni is evenly fixed on the metal substrate to form a dense and uniform pure beta radiation source. 63 Ni radioactive source is one of the most widely used low-energy β radioactive sources in the world, and it has important and broad application prospects, especially in the development and application of new energy nuclear batteries, gas chromatography and liquid chromatography analysis electron capture detectors, Explosive mass spectrometry detectors for customs and highly sensitive leak detectors are in urgent need of many applications 63 Ni radioactive source. [0003] Currently 63 The Ni radioactive source is mainly obtained by electrodeposition of an electrodeposition solution mainly composed of nickel sulfa...

Claims

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Application Information

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IPC IPC(8): C25D3/12
CPCC25D3/12
Inventor 高岩刘明阳王念崔洪起任春侠谭小明王安达付轲新
Owner HTA CO LTD
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