Presentation Information
[2C16]Calculation of heating value of high-performance moderator vessel for JRR-3 cold neutron source
*takemi nakamura1, sho tokunaga1, syo kawamura1 (1. Japan Atomic Energy Agency)
Keywords:
JRR-3,cold neutron source,moderator vessel,heating value,MCNP
To improve the performance of the JRR-3 cold neutron source, we are developing a high-performance moderator vessel made of A6061. The heating value of the current model is designed to be 900W at installation. The amount of heat exchanged with helium in the actual equipment is known to be around 350W. The heating value of the current model was evaluated by MCNP and was found good agreement. In addition, the heating value of the new moderator vessel currently under development was evaluated by MCNP.