Methods for calculating group cross sections for doubly heterogeneous thermal reactor systems. [HTGR]

Technical Report · Tue Feb 01 00:00:00 EST 1977

DOI:https://doi.org/10.2172/7306976· OSTI ID:7306976

Stamatelatos, M G; LaBauve, R J

The report discusses methods used at LASL for calculating group cross sections for doubly heterogeneous HTGR systems of the General Atomic design. These cross sections have been used for the neutronic safety analysis calculations of such HTGR systems at various points in reactor lifetime (e.g., beginning-of-life, end-of-equilibrium cycle). They were also compared with supplied General Atomic cross sections generated with General Atomic codes. The overall agreement between the LASL and the GA cross sections has been satisfactory.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7306976
• Report Number(s): LA-NUREG-6685-MS; TRN: 77-007851
• Country of Publication: United States
• Language: English

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