Study on Application of Resonance Self-Shielding Calculation Method Applying Wavelets Scaling Function Expansion in Resonance Self-Shielding Calculation Problem with Temperature Distribution

The radial power distribution in the fuel cell and the continuous-energy spectrums in the fuel cell with a temperature distribution are obtained by the wavelets scaling function expansion method.Wave-lets scaling function expansion continuous-energy self-shielding method is developed,in order to solve the nuclide resonance problem with multiple resonances in complicate geometry.It has been validated and veri-fied by comparison to Monte Carlo calculations.In this method,the continuous-energy cross-sections are processed by NJOY,while the multi-group nuclear data library is jeff31 issued by IAEA.However,for dif-ferent temperature problems,because of Doppler effect,the continuous-energy data library is different,and should be updated by applying NJOY.The calculation efficiency is a problem needed to be improved.There-fore,in this paper,the interpolation is utilized to obtain the continuous-energy cross-sections for other tem-peratures between those given temperatures.Also the precision of the temperature interpolation is discussed.Finally,the differences of continuous-energy spectrums,reaction rates and k_inf results are presented and compared with MCNP calculation.