Neutronic Design Calculations on Moderators for the Spallation Neutron Source (SNS)
The Spallation Neutron Source (SNS) to be built at the Oak Ridge National Laboratory will provide an intense source of neutrons for a large variety of experiments. It consists of a high-energy (1-GeV) and high-power ({approximately}1-MW) proton accelerator, an accumulator ring, together with a target station and an experimental area. In the target itself, the proton beam will produce neutrons via the spallation process and these will be converted to low-energy (<2-eV) neutrons in moderators located close to the target. Current plans are to have two liquid-hydrogen (20-K) moderators and two room-temperature H{sub 2}O moderators. Extensive engineering design work has been conducted on the moderator vessels. For our studies we have produced realistic neutronic representations of these moderators. We report on neutronic studies conducted on these representations of the moderators using Monte Carlo simulation techniques.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 9082
- Report Number(s):
- ORNL/CP-104008; TRN: US0102742
- Resource Relation:
- Conference: American Nuclear Society Winter Meeting on Nuclear Applications of Accelerator Technology (AccApp'99), Long Beach, CA (US), 11/14/1999--11/18/1999; Other Information: PBD: 14 Nov 1999
- Country of Publication:
- United States
- Language:
- English
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