1 - Nuclear Science and Engineering Lab (NSEL) - Virginia Tech
1 - Nuclear Science and Engineering Lab (NSEL) - Virginia Tech
1 - Nuclear Science and Engineering Lab (NSEL) - Virginia Tech
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VT3G ‐Advanced Computer codes/Formulations/AlgorithmsOver the last 26 years, VT3G has developed numerousadvanced formulations <strong>and</strong> computer codes, <strong>and</strong> applied thesecodes to real-world problems.Advanced numerical formulations:Differencing schemes (DTW, EDW, ADS), Cross-section generation (CPXSD),angular quadrature (Pn-Tn, Ordinate Splitting, fictitious), acceleration scheme(EP-SSn), response function for subcritical multiplication, & hybrid techniquesTransport codes• PENTRAN (Parallel Environment Neutral-particle TRANSport) – A 3-D parallelparticle transport code, Sjoden <strong>and</strong> Haghighat, 1997.• A 3 MCNP – Automated Adjoint Accelerated MCNP for Monte Carlo neutral particletransport with automated variance reduction, Wagner <strong>and</strong> Haghighat, 1997.• TITAN –A 3-D Hybrid parallel transport code, Yi <strong>and</strong> Haghighat, 2007.• ADIES - Angular-dependent Adjoint Driven Electron-photon Importance Samplingfor Monte Carlo electron transport with automated variance reduction, Dionne <strong>and</strong>Haghighat, 2007.Cross-section generation code• CPXSD – Contributon Point-wise cross-section Driven for generation of arbitrarymultigroup cross-section librariesSpecialized Hybrid methods/algorithms/codes• TITAN-SPECT algorithm• INSPCT-S (inspection of spent fuel pool)• AIMS (Active Interrogation for Monitoring of Special-nuclear-materials) PENTRANstTITANADIES0 2 1AIMS ln r 5453 0.580498 0.561644 0.491674 0.420538 0.353999 0.28285 0.27647 0.897903 0.880437 0.770597 0.653747 0.543993 0.427576 0.38686 1.271323 1.252983 1.094413 0.922518 0.761393 0.591298 0.49337 1.696988 INSPCT‐S1.669344 1.453015 1.219392 1.002015 0.772365 0.59258 1.978009 1.923356 1.665877 1.394836 1.14574 0.880125 0.67336 1.093457 1.058167 0.914234 0.765146 0.628852 0.482792 0.3t<strong>Nuclear</strong> <strong>Engineering</strong>Program