A Practical and Precise Technique for Determination of Beta Emitter Source in Thickness Gauging of Thin Film

IF 0.9 4区材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Russian Journal of Nondestructive Testing Pub Date : 2024-09-23 DOI:10.1134/S1061830924602125

S. Z. Islami rad, R. Gholipour Peyvandi

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Abstract

The nuclear thickness gauging systems play an important role in the industry for invasive, online, and continuous measurements. The goal of the Beta thickness gauge is to obtain a precise measurement of thin films in which the performance of these gauging systems and output data quality are evaluated with the parameters including resolution, contrast, etc. The choice of the emitted suitable energy distribution of the Beta source is one of the effective factors in the system performance and precise measurement of thin films. In this research, a Beta thickness gauge with ¹⁴⁷Pm and ⁸⁵Kr sources was simulated and evaluated in biaxially oriented polypropylene sheet production lines in order to calculate the system performance due to Beta emitter sources with different energy distribution and select the suitable Beta emitter source. The relative error percentage, standard deviation, resolution, and contrast parameters for ¹⁴⁷Pm energy distribution were calculated 1.413, 0.113, 0.007, and 0.008, respectively. Also, these parameters for ⁸⁵Kr energy distribution were measured 2.750, 0.220, 0.014, and 0.001, respectively. The results reveal that the ¹⁴⁷Pm energy distribution has superior in comparison with the ⁸⁵Kr energy distribution for measuring of films or sheets with thin thickness.

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在薄膜测厚中确定 Beta 发射源的实用精确技术

核厚度测量系统在工业领域的侵入式、在线和连续测量中发挥着重要作用。Beta 测厚仪的目标是对薄膜进行精确测量，而这些测量系统的性能和输出数据的质量是通过分辨率、对比度等参数来评估的。选择合适的 Beta 源发射能量分布是影响系统性能和薄膜精确测量的有效因素之一。本研究在双向拉伸聚丙烯板材生产线上模拟和评估了使用 147Pm 和 85Kr 源的 Beta 测厚仪，以计算不同能量分布的 Beta 发射源对系统性能的影响，并选择合适的 Beta 发射源。计算得出 147Pm 能量分布的相对误差百分比、标准偏差、分辨率和对比度参数分别为 1.413、0.113、0.007 和 0.008。此外，85Kr 能量分布的这些参数分别为 2.750、0.220、0.014 和 0.001。结果表明，与 85Kr 能量分布相比，147Pm 能量分布在测量厚度较薄的薄膜或薄片时更具优势。

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

Russian Journal of Nondestructive Testing 工程技术-材料科学：表征与测试

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

6-12 weeks

期刊介绍： Russian Journal of Nondestructive Testing, a translation of Defectoskopiya, is a publication of the Russian Academy of Sciences. This publication offers current Russian research on the theory and technology of nondestructive testing of materials and components. It describes laboratory and industrial investigations of devices and instrumentation and provides reviews of new equipment developed for series manufacture. Articles cover all physical methods of nondestructive testing, including magnetic and electrical; ultrasonic; X-ray and Y-ray; capillary; liquid (color luminescence), and radio (for materials of low conductivity).