Changes between Version 4 and Version 5 of GuarDyan_PhysModel
- Timestamp:
- Feb 13, 2018, 2:53:39 PM (7 years ago)
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GuarDyan_PhysModel
v4 v5 7 7 Free path sampling follows the Woodcock (delta-tracking) scheme with energy dependent majorant sampling cross section. The selection of isotope and interaction type happens in the analog way except for choosing between scattering and fission events. 8 8 9 We consider reactions with the following MT numbers: 2, 5, 11, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 41, 44, 45, 51-90, 101. After choosing the reaction, the determination of the new energy and angle of the neutron depends on the given ACE law (ACE Laws 3, 4, 7, 9, 11, 44, 61 or 66 ). S( alpha, beta) treatment and handling unresolved resonances are not yet included in the physics modeling.9 We consider reactions with the following MT numbers: 2, 5, 11, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 41, 44, 45, 51-90, 101. After choosing the reaction, the determination of the new energy and angle of the neutron depends on the given ACE law (ACE Laws 3, 4, 7, 9, 11, 44, 61 or 66 ). S($\alpha$, $\beta$) treatment and handling unresolved resonances are not yet included in the physics modeling. 10 10 11 11 == Verification … … 19 19 The subcritical model was a 30 cm radius water sphere with 61 UO,,2,, cylindrical fuel rods of 40 cm length, 1 cm radius spaced 1 cm apart from each other see figure. Uranium was 4.7% enriched and fuel rod density was taken as 10.5g/cm^3^. 20 20 21 [[Image(UOH2O_geometry.png, 400px, title=Geometry of the subcritical verification model)]] \\ ''Geometry of the subcritical verification model'' 21 [[Image(UOH2O_geometry.png, 400px, title=Geometry of the subcritical verification model)]] \\ ''Geometry of the subcritical verification model'' 22 23 Similarly, a time-energy spectrum is registered in this case as well. 24 25 22 26 23 27