FLASSH 1.0: Thermal Scattering Law Evaluation and Cross Section Generation

Conference · Thu Jul 28 04:00:00 EDT 2022

OSTI ID:1897990

Fleming, N. Colby ^[1]; Manring, Cole A. ^[1]; Laramee, Benjamin K. ^[1]; Crozier, Jonathan P.W. ^[1]; Lee, Eunji ^[2]; Hawari, Ayman I.

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1. North Carolina State Univ., Raleigh, NC (United States)
2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

The Full Law Analysis Scattering System Hub (FLASSH) is an advanced code which evaluates the thermal scattering law (i.e. TSL, S(α,β)) for thermal scattering cross sections and resonance Doppler broadening. The ability to accurately capture these two key cross section features is dependent on accurate, high fidelity TSL evaluations. FLASSH 1.0 provides advanced physics capabilities resulting in an improved, generalized TSL to most accurately represent the lattice dynamics within any material. This improved TSL will allow for consistent analysis in both the thermal and epithermal energy ranges. The features for TSL analysis are packaged within the FLASSH GUI for easy user interface along with data output in many file formats including ENDF File 7 and ACE files.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); USDOE National Nuclear Security Administration (NNSA), Naval Nuclear Propulsion Program (NNPP); USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP)
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1897990
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS AND COMPUTING
Full Law Analysis Scattering System Hub (FLASSH)
Nuclear Criticality Safety Program (NCSP)
Nuclear Data
Thermal Scattering Cross Sections