Shielding Modification and Application of Laser Diameter Gauges
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 to γ-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.
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