Fig. 1. Comparison of power distributions in a core modeled with and without extraneous neutron sources

Fig. 2. A schematic diagram of ICRR before and after the correction with extraneous neutron sources

Fig. 3. Framework diagram of SRWM system

Fig. 4. Flowchart of spatial correction factor calculation function module

Fig. 5. Flowchart of data processing and display function module

Fig. 6. Display of control rod worth calculation results

Fig. 7. Viewing function of conditions for SRWM trials

Fig. 8. Schematic diagram of control rod positions during the withdraw phase of rods

Fig. 9. Collected data of source range detector during the withdraw phase of rods

Fig. 10. First-order filtering of data for source range detector

Fig. 11. Linearity of corrected data and subcriticality for SRWM trials during Sanmen 202 overhaul

Fig. 12. Linearity of corrected data and subcriticality for SRWM trials during Sanmen 103 overhaul