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On the thermal neutron transport processes in liquid H/sub 2/O-D/sub 2/O mixtures

Journal Article · · Nucl. Sci. Eng.; (United States)
OSTI ID:5307162
Using the recently developed thermal neutron scattering kernels for water and heavy water, which incorporate both the collective and the molecular modes present in water and heavy water, the thermal neutron transport studies of asymptotic decay constants lambda/sub 0/, diffusion coefficient D/sub 0/, diffusion cooling coefficient C, and the transport mean-free-path lambda /SUB tr/ are studied for liquid H/sub 2/O-D/sub 2/O mixtures with varying molecular contents and for various assembly sizes at 21 and 5/sup 0/C. The calculated values of the physical constants, lambda/sub 0/, D/sub 0/, C, and lambda /SUB tr/ are found to be in good agreement with the corresponding experimental results. Both the collective motion and the molecular modes present in the liquid H/sub 2/O-D/sub 2/O mixtures play significant roles in the thermal neutron transport processes.
Research Organization:
University of Delhi, Hans Raj College, Department of Physics, Delhi-110007
OSTI ID:
5307162
Journal Information:
Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 84:2; ISSN NSENA
Country of Publication:
United States
Language:
English