// // ******************************************************************** // * License and Disclaimer * // * * // * The Geant4 software is copyright of the Copyright Holders of * // * the Geant4 Collaboration. It is provided under the terms and * // * conditions of the Geant4 Software License, included in the file * // * LICENSE and available at http://cern.ch/geant4/license . These * // * include a list of copyright holders. * // * * // * Neither the authors of this software system, nor their employing * // * institutes,nor the agencies providing financial support for this * // * work make any representation or warranty, express or implied, * // * regarding this software system or assume any liability for its * // * use. Please see the license in the file LICENSE and URL above * // * for the full disclaimer and the limitation of liability. * // * * // * This code implementation is the result of the scientific and * // * technical work of the GEANT4 collaboration. * // * By using, copying, modifying or distributing the software (or * // * any work based on the software) you agree to acknowledge its * // * use in resulting scientific publications, and indicate your * // * acceptance of all terms of the Geant4 Software license. * // ******************************************************************** // // $Id: G4FissLib.hh,v 1.2 2007-06-01 13:46:53 gcosmo Exp $ // GEANT4 tag $Name: not supported by cvs2svn $ // // ******************************************************************** // ! A neutron-induced fission package ! // ! J.M. Verbeke, Dec-2006 / LLNL ! // ! ! // ! G4NeutronFissionModule.cc ! // ! ! // ! Classes to simulate neutron-induced fissions, emitting neutrons ! // ! and gamma-rays. Algorithm uses data whenever available, and ! // ! models such as the Terrell approximation, the Watt spectrum ! // ! otherwise. ! // ! ! // ! The complete list of references used is shown below: ! // ! ! // ! J. Terrell, "Distributions of Fission Neutron Numbers", Phys. ! // ! Rev. 108, 783 (1957). ! // ! M.S. Zucker, N.E. Holden, "Energy Dependence of Neutron ! // ! Multiplicity P_nu in Fast-Neutron-Induced Fission for U-235, ! // ! U-238 and Pu-239," BNL-38491 (1986). ! // ! T.E. Valentine, "MCNP-DSP Users Manual," ORNL/TM-13334, R2, Oak ! // ! Ridge National Laboratory (2000). ! // ! T.E. Valentine, J.T. Mihalczo, "MCNP-DSP: A Neutron and Gamma ! // ! Ray Monte Carlo Calculation of Source-Driven Noise-Measured ! // ! Parameters ," Ann. of Nucl. Eng., 23, 16, p. 1271 (1996). ! // ! R. Gwin, R.R. Spencer, R.W. Ingle, "Measurements of the Energy ! // ! Dependence of Prompt Neutron Emission from U-233, U-235, ! // ! Pu-239, and Pu-241 for E_n=0.005 to 10 eV Relative to Emission ! // ! from Spontaneous Fission of Cf-252," Nucl. Sci. Eng., 87, 381 ! // ! (1984). ! // ! J. Frehaut, "Neutron Multiplicity Distribution in Fast ! // ! Neutron-Induced Fission," Proc. of IAEA Consultant's Meeting ! // ! on Physics of Neutron Emission in Fission, Mito, Japan (1988). ! // ! R.R. Spencer, R. Gwin, R.W. Ingle, "A measurement of the Average ! // ! Number of Prompt Neutrons from Spontaneous Fission of ! // ! Californium-252," Nucl. Sci. Eng. 80, 603 (1982). ! // ! J.W. Boldeman, M.G. Hines, "Prompt Neutron Emission ! // ! Probabilities Following Spontaneous and Thermal Neutron ! // ! Fission," Nucl. Sci. Eng., 91, 114 (1985). ! // ! N.E. Holden, M.S. Zucker, "A Reevaluation of the Average Prompt ! // ! Neutron Emission Multiplicity (nubar) Values from Fission of ! // ! Uranium and Transuranium Nuclides," BNL-NCS-35513, Brookhaven ! // ! National Laboratory). ! // ! R.J. Howerton, et al, "The LLL Evaluated Nuclear Data Library ! // ! (ENDL): Evaluation Techniques, Reaction Index, and Description ! // ! of Individual Evaluations," UCRL-50400, V. 15, Part A, ! // ! Lawrence Livermore National Laboratory (1975). ! // ! D.E. Cullen, "Sampling ENDL Watt Fission Spectra," ! // ! UCRL-TR-203251, Lawrence Livermore National Laboratory (2004). ! // ! C.J. Everett, E.D. Cashwell, "A Third Monte Carlo Sampler," ! // ! LA-9721-MS, Los Alamos National Laboratory (1983). ! // ! D.E. Cullen, "TART 2002: A Couple Neutron-Photon 3-D, ! // ! Combinatorial Geometry, Time Dependent Monte-Carlo Transport ! // ! Code," UCRL-ID-126455, Rev. 4, Lawrence Livermore National ! // ! Laboratory (2003). ! // ! W. Mannhart, "Evaluation of the Cf-252 Fission Neutron Spectrum ! // ! Between 0 MeV and 20 MeV," Proc. Advisory Group Mtg. Neutron ! // ! Sources, Leningrad, USSR, 1986 (IAEA-TECDOC-410), Vienna ! // ! (1987). ! // ! D.G. Madland, J.R. Nix, "Prompt Fission Neutron Spectra and ! // ! Average Prompt Neutron Multiplicities,"NEANDC Specialist's ! // ! Meeting on Yields and Decay Data of Fission Products, ! // ! Brookhaven National Laboratory, BNL 51778 (1984). ! // ! F.H. Froehner, "Evaluation of Cf-252 Prompt Fission Neutron Data ! // ! from 0 to 20 MeV by Watt Spectrum Fit," Nucl. Sci. Eng. 106, ! // ! 345 (1990). ! // ! G.S. Brunson, Jr., "Multiplicity and Correlated Energy of Gamma ! // ! Rays Emitted in the Spontaneous Fission of Californium-252," ! // ! Ph.D. Thesis, University of Utah (1982). ! // ! T.E. Valentine, "Evaluation of Prompt Fission Gamma Rays for Use ! // ! in Simulating Nuclear Safeguard Measurements," Ann. Nucl. ! // ! Eng., 28, 191 (2001). ! // ! C. Wagemans, "The Nuclear Fission Process," CRC Press, Inc., Boca! // ! Raton, Florida (1991). ! // ! F.C. Maienschein, R.W. Peelle, T.A. Love, Neutron Phys. Ann. ! // ! Prog. Rep. for Sept. 1, 1958, ORNL-2609, Oak Ridge National ! // ! Laboratory (1958). ! // ! "Fundamental Aspects of Reactor Shielding," Addison-Wesley ! // ! Publishing Company, Inc. Reading, Massachussetts (1959). ! // ! ! // ******************************************************************** // // Hadronic Process: High Precision low E neutron tracking // original by J.M. Verbeke, LLNL, 5-Jan-07 // Builds and has the Cross-section data for one material. #ifndef G4FissLib_h #define G4FissLib_h 1 // Class Description // Final state production model for a high precision (based on evaluated data // libraries) description of neutron induced fission below 10 MeV. // Note that this model (by intent of avoiding the possibility of heating studies) does // not provide the nuclear fragments. // // To be used in your physics list in case you need this physics. // In this case you want to register an object of this class with // the corresponding process. // Class Description - End #include "globals.hh" #include "G4NeutronHPChannel.hh" #include "G4HadronicInteraction.hh" #include "G4NeutronHPThermalBoost.hh" #include "G4FissionLibrary.hh" #include "G4FissLib.hh" class G4FissLib : public G4HadronicInteraction { public: G4FissLib(); ~G4FissLib(); G4HadFinalState * ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& aTargetNucleus); private: G4FissionLibrary theLibrary; private: G4double * xSec; G4NeutronHPChannel * theFission; G4String dirName; G4int numEle; // static G4String theNames[3]; }; #endif