Progress report: SNS neutronics studies
The proposed Spallation Neutron Source (SNS) facility will consist of two parts: (1) a high-energy (1-GeV) and high-powered (1-MW) proton accelerator (linac) and accumulator ring, and (2) a target station that produces low-energy (< 2-eV) neutrons and delivers them to the neutron scattering instruments. It will be a 60-Hz facility, delivering 6 x 10{sup 15} protons each second in 60 1-{micro}s pulses with a linac length of 490 m and an accumulator ring circumference of 220 m. This paper deals with the second part of the facility: the design and development of the SNS target station proposed for Oak Ridge National Laboratory (ORNL). Some of the more recent work will be presented, including a premoderator study, validation comparisons with experiment, sensitivity studies of cryogenic H{sub 2} moderator output to assumed ortho/para admixtures, and the construction of a more detailed model geometry.
- Research Organization:
- Oak Ridge National Lab., Computational Physics and Engineering Div., TN (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 677205
- Report Number(s):
- ORNL/CP-99605; CONF-980680-; ON: DE99000238; TRN: 99:002251
- Resource Relation:
- Conference: ICANS: 14. conference on the international collaboration on advanced neutron sources, Argonne, IL (United States), 14-19 Jun 1998; Other Information: PBD: [1998]
- Country of Publication:
- United States
- Language:
- English
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