Prompt Neutron Decay Constants in Uranium Diluted with Matrix Material Systems
Conference
·
OSTI ID:975109
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Rossi-Alpha measurements were performed on uranium diluted with matrix material systems to determine the prompt neutron decay constants. These constants represent an eigenvalue characteristic of these particular critical assemblies, which can be experimentally measured by the Rossi-Alpha or pulse neutron source techniques and calculated by a deterministic or Monte Carlo method. In the measurements presented in this summary, highly enriched foils diluted in various X/235U ratios with polyethylene and SiO2, and polyethylene and aluminum were assembled to a high multiplication and the prompt neutron decay constants were obtained by the Rossi-Alpha technique.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 975109
- Report Number(s):
- LA-UR--01-0290; LA-UR--01-290
- Country of Publication:
- United States
- Language:
- English
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