The Slowing Down of Neutrons by Deuterium
Journal Article
·
· Nuclear Science and Engineering
OSTI ID:4193625
- Babcock & Wilcox Co., Lynchburg, VA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
The Greuling-Goertzel method is applied to calculation of the slowing down of neutrons in deuterium. and the results compared with thy Selengut-Goertzel method. in which the deuterium slowing-down is treated by age theory It is shown how existing codes for calculating slowing down in hydrogen can be modified in a simple manner to incorporate this treatment of deuterium. Numerical results show excellent agreement between measured and calculated ages and indicate that a continuous slowing-down model for deuterium is inappropriate. This is in qualitative agreement with the experiments performed by Wade, and in disagreement with Olcott s work. it is shown that an age kernel with an age to indium of 100 cm2 maybe used to compute the fast leakage from heavy-water systems over a wide range of buckling. The situation concerning agreement with critical experiments remains to be clarified because of large uncertainties in other criticality factors.
- Research Organization:
- Babcock & Wilcox Co., Lynchburg, VA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
- DOE Contract Number:
- NONE;
- NSA Number:
- NSA-14-008104
- OSTI ID:
- 4193625
- Journal Information:
- Nuclear Science and Engineering, Journal Name: Nuclear Science and Engineering Vol. 7; ISSN 0029-5639
- Publisher:
- Taylor & Francis
- Country of Publication:
- United States
- Language:
- English
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