Error Analysis and Experimental Research of HTR-10 Burnup Measurement System

The burnup measurement system is one of the most important sub-system of the pebble bed high-temperature gas-cooled reactor. The accuracy of results will influence the security and economical efficiency of the reactor. The system error of burnup measurement system was testified by diversion experiment of elevator. By analyzing the experiment results and theory computational results, the diversion from the core of spherical fuel element to the axis of the collimator was estimated.