Neutron transmutation doping (NTD) of Silicon is one of the important items in the utilization of a research reactor. For the production of the high quality NTD-Silicon, it is necessary to rotate the silicon ingot with a uniform speed at a certain position in the NTD irradiation sites for uniform irradiation of the NTD during the NTD irradiation process.
In this study, the hydraulic-driven rotation system is proposed to make up for the weakness of the motor-driven rotation system as the conventional method, which is needed to enhance the reliability of NTD system. Hydraulic rotation device (HRD) for the NTD to rotate the silicon ingot with a uniform speed is designed conceptually to apply the new concept of hydraulic-driven rotation system. The designed HRD for the NTD is composed of a thrust bearing part, a journal bearing part, and an impulse jet part. High-pressure water jets are supplied through each nozzle. The thrust bearing part is designed for the stable levitation of the silicon ingot and HRD in the pool. The journal bearing part is designed for the support of HRD during thrust and rotation. The impulse jet part is designed for a uniform rotation of the HRD. Through the proposed design, the potential for application to a new NTD rotation system will be verified.