[3G14-17] Subcriticality Experiment and Evaluation 2

[3G14] Development of Innovative Nuclear Waste Burning System by Fast Reactor Cycle Using Pu Metallic Fuel with MA

(14)Measurement of Doppler Effect for Metallic Fuel Alloy Material with Pulsed Neutron Source II

*Hironobu Unesaki¹, Tadafumi Sano¹, Jun-ichi Hori¹, Yoshiyuki Takahashi¹, Ken Nakajima¹, Akihiro Hara², Yasushi Tsuboi², Kazuo Arie² (1. Kyoto University Research Reactor Institute, 2. TOSHIBA CORPORATION)

Keywords:Doppler Effect, Metallic Fuel Alloy Material, KURRI LINAC, Pulsed Neutron Source, Time-of-flight method

We have performed the measurement the Doppler effects for Nb metal sample with the KURRI-LINAC pulsed neutron source. In the experiment, neutron capture rates in the Nb sample at 300K and 600K were obtained by prompt gamma-ray measurement with the time-of-flight (TOF) method, and the Doppler effects are defined as the ratio of neutron capture rates at 600K and 300K. In a presentation, we will report the results of the measurement and the numerical analysis.