激光测径仪的屏蔽改造及其应用  

Shielding Modification and Application of Laser Diameter Gauges

作　　者：刘蔷 LIU Qiang(China Institute of Atomic Energy,Beijing,102413 China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《科技资讯》2024年第12期74-77,共4页Science & Technology Information

摘　　要：激光测径仪作为一种简便、精确的尺寸测量手段,已在工业领域得到广泛应用。由于激光测径仪中的核心部件主要为光学与电子器件,因此其耐受γ射线照射的能力较低。为完成反应堆乏燃料棒的尺寸测量工作,对激光测径仪进行了屏蔽改造,改造后的设备在保留了原有测量精度的前提下,耐辐照能力得到显著提升,可用于高放射性物品的尺寸测量工作。As a simple and accurate means of dimension measurement,a laser diameter gauge has been widely ap-plied in the industrial field.The core components of the laser diameter gauge are mainly optical and electronic com-ponents,so it has a low tolerance toγ-ray radiation.In order to perform the dimension measurement of the spent fuel rods of the reactor,shielding modification is completed on the laser diameter gauge.On the premise of retain-ing the original measurement accuracy,the modified divice has significantly improved its irradiation resistance,which can be used for the dimension measurement of high-level radioactive items.

关 键 词：激光测径仪 屏蔽改造 乏燃料 尺寸测量 

分 类 号：TN247[电子电信—物理电子学]