Abstract

Problems associated with the radiography of objects made of steel having thickness of 100 mm and more are outlined. The classical method of gathering information provides for mounting semiconductor photo detectors directly on scintillators. As a result, gamma radiation scattered in a scintillator enters photo detector increasing the image noise and providing a negative effect on processing electronics. A method to design a recording system using a wavelength-shifting fiber having no disadvantages of the classical technique is proposed. This method makes it possible to decrease the image noise, to remove electronics from direct effect of gamma radiation and to increase the registration efficiency. Various approaches of implementing the method proposed to detect signals are explored experimentally with selecting the optimal techniques. This research enabled developing a design base to engineer recording element. The results on measuring parameters of the registering element are presented.

中文翻译：

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具有最小图像噪声和提高配准效率的硬伽马量子流检测器

摘要

概述了与厚度为 100 毫米及以上的钢制物体的射线照相相关的问题。收集信息的经典方法是将半导体光电探测器直接安装在闪烁体上。结果，在闪烁体中散射的伽马辐射进入光电检测器，增加了图像噪声并对处理电子设备产生负面影响。提出了一种设计使用波长偏移光纤的记录系统的方法，该方法没有传统技术的缺点。这种方法可以降低图像噪声，消除伽马辐射的直接影响并提高配准效率。通过选择最佳技术，通过实验探索了实现所提出的检测信号的方法的各种方法。这项研究使开发一个设计基础来设计记录元素。给出了记录元件的测量参数的结果。