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Title: SiO2 - polyethylene reflected critical assembly

Conference ·
OSTI ID:975104

The Planet universal critical assembly machine was used to perform a series of three critical experiments. This experiment used HEU foils reflected by polyethylene and interleaved with plates of SiO{sub 2} glass and polyethylene. Only the experiment performed using the SiO{sub 2} matrix material is evaluated in this report. The assembly was delayed critical with 33 HEU foils or 17 units (sets of HEU foils). The critical assembly has an intermediate neutron spectrum, with 51.2% of the fissions occurring between 0.625 eV and 100 keV. The calculational results show good agreement with the experimental results.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
OSTI ID:
975104
Report Number(s):
LA-UR-01-0050; LA-UR-01-50; TRN: US1002385
Resource Relation:
Conference: "Submitted to: American Nuclear Society 2001 Anuual Meeting"
Country of Publication:
United States
Language:
English