Decontamination of 60Co, 137Cs and 241Am from sensitive equipment-related materials using commercially available products

IF 1.8 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-09-11 DOI:10.1016/j.apradiso.2025.112180

Jaleh Semmler, Arshad Toor, Zahid Khan

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引用次数: 0

Abstract

This paper reports the efficacy of seven commercially available decontamination products for decontamination of sensitive equipment-related materials contaminated with ⁶⁰Co, ¹³⁷Cs and ²⁴¹Am. Several of the products tested were developed for decontamination of chemical warfare agents and biological contaminants rather than radiological nuclear contaminants. They were included in the tests to determine their suitability for materials contaminated with radiological/nuclear materials. Flat coupons made of stainless steel, aluminum and glass, and samples with complex geometries composed of mixed materials (plastic, painted and unpainted metals), personal computer boards, terminal connectors, and solderable half-sized breadboards were used for testing. A functioning alarm clock was also tested; the alarm clock is still functional two and half-years after radionuclide contamination and subsequent decontamination using two of the commercial products. The test results show that many of the products tested are effective for decontamination of the substrates tested. Substrate material and radionuclide chemistry affected removal efficacy, with removal of ²⁴¹Am being more difficult than removal of either ⁶⁰Co or ¹³⁷Cs. The substrate geometry had a significant effect on process effectiveness, the removal efficacy for all radionuclides decreased as the substrate geometry became more complex.

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使用市售产品去除敏感设备相关材料中的60Co、137Cs和241Am污染

本文报道了7种市售去污产品对60Co、137Cs和241Am污染的敏感设备相关材料的去污效果。所测试的若干产品是为消除化学战剂和生物污染物而不是放射性核污染物而开发的。它们被列入试验，以确定它们对受放射性/核材料污染的材料的适用性。测试使用不锈钢、铝、玻璃制成的平券，混合材料（塑料、涂漆和未涂漆金属）组成的复杂几何形状的样品，个人电脑板，终端连接器，可焊接的半尺寸面包板。还测试了一个正常工作的闹钟；在放射性核素污染和随后使用两种商业产品去污两年半后，闹钟仍能正常工作。测试结果表明，许多被测产品对被测基材的去污是有效的。底物材料和放射性核素化学影响去除效果，去除241Am比去除60Co或137Cs更困难。衬底几何形状对工艺效率有显著影响，随着衬底几何形状越复杂，对所有放射性核素的去除效率越低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.