Calculation of Energy Dependent Neutron Correction Coefficient Ratios of Natural Rhodium in Energy Region from 0.003 to 100 eV

다국어 초록 (Multilingual Abstract)

In the neutron capture experiment and calculation, the neutron absorption and scattering are very important. Especially these effects are conspicuous in the resonance energy region and below the thermal energy region. In the present study, we obtained energy dependent neutron absorption ratios of natural rhodium in energy region from 0.003 to 100 eV by MCNP-4B Code. The coefficients for neutron absorption was calculated for several types of thickness. In the lower energy region, neutron absorption is larger than higher region, because of large capture cross section (1/v). Furthermore it seems very different neutron absorption in the large resonance energy region. These results are very useful to decide the thickness of sample and shielding materials.

참고문헌 (Reference)

1 R. L. MACKLIN, 73 : 174-, 1980

2 Mughabghab, S. F., "Neutron Cross Sections, Vol. 1, Neutron Resonance Parameters and Thermal Cross Sections, Part A" Academic Press 1981

3 Briesmeister J. F., "MCNP-A General Monte Carlo Code for Neutron and Photon Transport, Version 4B" Los Alamos National Laboratory 1997

4 Nakazawa, M., "JAERI 1325"