制造用于SPECT系统校准的线性钴-57源的电化学沉积程序

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2026-09-15 DOI:10.1134/S1066362226040090

E. S. Vasileva, V. A. Kozub, A. A. Popovich, I. V. Buryanenko, V. G. Semenov, A. B. Rogozev

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引用次数: 0

摘要

开发了一种电化学沉积程序，用于形成用于SPECT系统校准的线性57Co源的活性部分。研究了铜衬底制备、电流密度、钴稳定浓度、阳极材料和沉积时间对镀层质量和活性沿长度分布的影响。在选择的工艺参数下，57Co沉积收率达到92% ~ 93%；涂层具有较高的附着力，活性度沿长度分布的最大不均匀性不超过10%，标准差≤2.5%。确定了影响活度分布的边缘效应。结果证实了制作符合标定源要求的57Co线性有源零件的可行性。

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Electrochemical Deposition Procedure for Fabricating Linear Cobalt-57 Sources for SPECT System Calibration

An electrochemical deposition procedure was developed for forming the active part of a linear ⁵⁷Co source for SPECT system calibration. The effects of copper substrate preparation, current density, stable cobalt concentration, anode material, and deposition time on the coating quality and on the activity distribution along the length were studied. Under the parameters chosen, the ⁵⁷Co deposition yield reaches 92–93 %; the coatings exhibit high adhesion, and the maximum nonuniformity of the activity distribution along the length does not exceed 10% with a standard deviation of ≤2.5%. Edge effects influencing the activity distribution were identified. The results confirm the feasibility of fabricating a linear ⁵⁷Co active part with characteristics meeting the requirements for calibration sources.

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来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

期刊介绍： Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.